HomeMy WebLinkAboutO-2816 - Amends Sec. 4.02.040, Chs. 14.03, 14.05, 14.07, 14.09, 14.15, 14.16, 14.17 and 14.18 and Sec. 19.22.070, storm water management (4.02, 14.03, 14.05, 14.07, 14.09, 14.15, 14.16, 14.17, 14.18)CITY OF MARYSVILLE
Marysville, Washington
ORDINANCEJ2'J10
AN ORDINANCE OF THE CITY OF MARYSVILLE, WASHINGTON,
ADOPTING AND REVISING STORMWATER MANAGEMENT
REGULATIONS PURSUANT TO THE WESTERN WASHINGTON
PHASE II MUNICIPAL STORMWATER PERMIT ISSUED TO THE
CITY BY THE WASHINGTON STATE DEPARTMENT OF ECOLOGY
AND AMENDING CHAPTERS 4.02,14.03,14.05,14.07,14.09,14.15,14.16,
14.17,14.18, and 19.22, OF THE MARYSVILLE MUNICIPAL CODE.
WHEREAS, the Federal Clean Water Act, 33 U.S.C. 1251 et~. (the Act), requires
certain local governments such as the City of Marysville to implement stormwater management
programs and regulations within prescribed time frames, and pursuant to said Act the United
States Environmental Protection Agency (EPA) has adopted rules for such stormwater programs
and regulations; and
WHEREAS, the EPA has delegated authority to the Washington State Department of
Ecology (Ecology) to administer such stormwater programs and regulations, and Ecology has
issued the Western Washington Phase II Municipal Stormwater Permit, effective January 17,
2007 through February 15, 2012, which requires local governments such as the City of
Marysville to implement numerous stormwater management requirements, including adopting
Ecology's 2005 Stormwater Management Manual for Western Washington and related
regulations by February 16,2010 and adopting illegal discharge and connection regulations by
August 16,2009; and
WHEREAS, in 1999, the City Council adopted Ordinance 2245, which established a
stormwater utility to be responsible for the operation, construction and maintenance of
stormwater facilities, as set forth in Ch. 14.19 MMC; and
WHEREAS, in 2003, the City Council adopted Ordinance 2476, which adopted
Ecology's 2001 Stormwater Management Manual for Western Washington and related
regulations, as set forth in Ch. 14.15 MMC; and
WHEREAS, on August 3, 2009, the City Council adopted Ordinance 2782, which
adopted illegal discharge and connection regulations; and
WHEREAS, in order to comply with the currently effective Western Washington Phase
II Municipal Stormwater Permit, the City has prepared proposed Stormwater Management
regulations, which amend and update the City's current stormwater regulations and related
municipal code provisions, as primarily set forth in Title 14 MMC; and
WHEREAS, on January 20, 2010, the City's SEPA Responsible Official complied with
the State Environmental Policy Act (SEPA) by issuing a Determination ofNonsignificance
01
(DNS) for the adoption of the proposed Stormwater Management regulations and by complying
with SEPA's procedural requirements for issuing the DNS; and
WHEREAS, the City Council has determined that it is in the public interest and in
furtherance of the public health and welfare to adopt the proposed Stormwater Management
regulations, as set forth below and in the attached Exhibit A;
NOW THEREFORE, the City Council of the City of Marysville, Washington do ordain
as follows:
Section 1. Title 14 of the Marysville Municipal Code is hereby amended by amending and
updating Chapters 14.03, 14.05, 14.07, 14.09, 14.15, 14.16, 14.17, and 14.18, MMC to read as
set forth in Exhibit A, which is attached hereto and incorporated herein by this reference.
Section 2. Chapter 4.02 of the Marysville Municipal Code is hereby amended by amending
MMC 4.02.040 to read as follows:
4.02.040 Penalties and enforcement.
(1) Director Authorized to Enforce Codes. The director is charged with enforcement of the
provisions ofthis title and the MMC.
(2) Violations. It shall be unlawful for any person to construct, enlarge, alter, repair, move,
demolish, use, occupy or maintain any use or cause the same to be done in violation of any of the
provisions of this title or other titles, chapters or sections of the MMC. Any such violation as
determined by the director is declared to be a public nuisance and shall be corrected by any
reasonable and lawful means as provided in this section. In the event the penalties provided in
this title conflict with any penalty provided in any other section, chapter or title of the Marysville
Municipal Code, the penalty provisions of this title shall control.
(3) Director's Remedies. Upon finding a violation, the director may:
(a) Institute appropriate action or proceeding to require compliance with this title or to enjoin,
correct or abate any acts or practices which constitute or will constitute a violation;
(b) Issue a temporary enforcement order, stop work order, emergency order, or permanent
enforcement order, pursuant to subsections (7) and (8) ofthis section;
(c) Abate the violation if corrective work is not commenced or completed within the time
specified in a permanent enforcement order;
(d) Suspend or revoke any approvals or permits issued pursuant to this title; MMC Title 5
(Business Regulations and Licenses), including without limitation MMC 5.02.140, 5.20.080 and
5.52.090; MMC Title 6 (Penal Code), including without limitation Chapter 6.24 MMC; MMC
Title 7 (Health and Sanitation), including without limitation MMC 7.04.010 through 7.04.100;
MMC Title 9 (Fire); MMC Title 11 (Traffic), including without limitation MMC 11.36.040;
02
MMC Title 12 (Streets and Sidewalks), including without limitation MMC 12.08.040, Chapter
12.12 MMC, MMC 12.20.010, Chapter 12.24 MMC, MMC 12.36.020 through 12.36.030 and
12.40.020 through 12.40.030; MMC Title 14 (Water and Sewers), including without limitation
MMC 14.15, 14.16, 14.17 and 14.21 MMC Title 16 (Building); MMC Title 18 (Planning); MMC
Title 19 (Zoning); and MMC Title 20 (Subdivisions);
(e) Assess civil penalties after notice and order set forth in subsection (8)(b)(iv) of this section or
recovered by legal action filing in Snohomish County superior court;
(f) File a lien against the property for costs of abatement and/or civil fines;
(g) Issue civil infractions:
(i) Any violation of this code to which this chapter applies is deemed and declared to be a civil
infraction. Each day of violation shall constitute a separate civil infraction.
(ii) Any person found to have committed a civil infraction shall be assessed a fine as set forth in
the following schedule:
First Violation Repeat Violation
Code Provisions Noncommercial Commercial Noncommercial Commercial
Title Chapter
4
Enforcement
Code
4.02
Enforcement
Procedures
$300 $500 $600 $1,000
5
Business
Regulations
and Licenses
5.02
Business Licenses
$150 $250 $300 $500
6
Penal Code
6.24
Public Nuisances
$150 $250 $300 $500
6.76
Noise Regulation
$150 $250 $300 $500
7
Health and
Sanitation
7.04
Unsanitary
Conditions
Nuisances
$150 $250 $300 $500
7.08
Garbage
Collection
$150 $250 $300 $500
9 9.04 $150 $250 $300 $500
03
Fire Fire Code
12 12.24 $150 $250 $300 $500
Streets and Sidewalks
Sidewalks Dangerous
Conditions
12.36 $150 $250 $300 $500
Vegetation
12.40 $150 $250 $300 $500
Clean Condition
of Public Right-
of-Way
14 14.01 $150 $250 $300 $500
Water and General
Sewers Provisions
14.15 $150 $250 $300 $500
Controlling
Stormwater
Runoff From New
Development,
Redevelopment,
and Construction
Sites
14.16 $150 $250 $300 $500
Operation and
Maintenance of
Public Storm
Drainage Systems
14.17 $150 $250 $300 $500
Operation and
Maintenance of Plus any costs incurred for the maintenance of failed private
Private Storm stormwater systems.
Drainage Systems
14.21 $150 $250 $300 $500
Illicit Discharge
Detection and
Elimination
Plus city's costs for abatement, sampling and/or monitoring.
(IDDE)
16 16.04 $150 $250 $300 $500
Building Building Code
19 19.08 $150 $250 $300 $500
Zoning Permitted Uses
04
19.12
Development
Standards
Density and
Dimensions
$150 $250 $300 $500
19.14
Development
Standards
Design
Requirements
$150 $250 $300 $500
19.16
Development
Standards
Landscaping
$150 $250 $300 $500
19.20
Sign Code
$150 $250 $300 $500
19.24
Critical Areas
Management
$250 $350 $500 $700
19.28
Clearing, Grading,
Filling and
Erosion Control
$250 $350 $500 $700
19.32
Home
Occupations
$150 $250 $300 $500
19.40
Development
Standards
Recreational
Vehicle Parks
$150 $250 $300 $500
Section 3. Chapter 19.22 of the Marysville Municipal Code is hereby amended by amending
MMC 19.22.070 to read as follows:
19.22.070 SEPA decisions and appeals.
The city adopts the following sections of the Model SEPA Ordinance, as now existing or
hereafter amended, by reference, and incorporates the same into this chapter as though set forth
in full:
(1) WAC 173-806-155;
(2) WAC 173-806-160; provided, that subsection (c) thereof shall be amended to read as
follows:
05
The city adopts by reference the policies in the following city codes, plans, policies and
.agreements, as now existing or hereafter amended, as a possible basis for the exercise of
substantive authority in the conditioning or denying of proposals:
«a) Chapter 6.76 MMC, Noise Regulations;
(b) MMC Title 1, Health and Sanitation;
(c) Chapter 9.04 MMC, Fire Code;
(d) Chapter 11.56 MMC, Fire Zones;
(e) Chapter 11.62 MMC, Truck Routes;
(f) MMC 12.02.170, Curbs, gutters and sidewalks required;
(g) MMC 12.02.180, Minimum access requirements;
(h) MMC 12.02.190, Dedication of road right-of-way-Required setbacks;
(i) Chapter 12.06 MMC, Classification of Streets;
G) Six-Year Transportation Improvement Program;
,(k) Chapter 14.01 MMC, General Requirements for Utility Service;
(1) Chapter 14.15 MMC, Controlling Stormwater Runoff from New Development,
Redevelopment, and Construction Sites;
(m) Chapter 14.16 MMC, Operation and Maintenance of Public Storm Drainage
iSystems;
.(n) Chapter 14.17 MMC, Operation and Maintenance of Private Storm Drainage
Systems;
06
I(0) Chapter 14.18 MMC, Regional Stormwater Drainage;
(P) Chapter 14.21 MMC, Illicit Discharge Detection and Elimination;
'(q) Chapter 14.32 MMC, Rural Utility Service Area, including the RUSA Plan;
(r) MMC Title 12., Building Codes, Sign Code, and Flood Plain Management;
(s) Chapter 18.08 MMC, Comprehensive Plan;
(t) Chapter 18.16 MMC, Shoreline Management Master Program, and Streamside
Protection Zone;
'(u) Chapter 18.24 MMC, Mitigation ofImpacts Resulting from Development Proposals;
(v) MMC Title 1.2, Zoning;
(x) MMC Title 20: Subdivisions;
(w) All transportation improvement programs adopted by the city council pursuant to
jChapter 39.92 RCW;
(y) All capital facilities projects contained within the Marysville Comprehensive Plan;
i(z) Interlocal Agreement Between Snohomish County and the City of Marysville on
I Reciprocal Mitigation of Transportation Impacts;
I
(aa) Interlocal Agreement Between the City of Marysville and Snohomish County
:Concerning Annexation and Urban Development Within the Marysville Urban Growth
Area;
I(bb) The formally designated SEPA policies of other affected agencies or jurisdictions
I when there is an agreement with the affected agency or jurisdiction which specifically
I addresses impact identification, documentation, and mitigation and which references the
,environmental policies formally designated by the agency or jurisdiction for the exercise
:ofSEPA authority.
07
Section 4. Severability. If any section, subsection, sentence, clause, phrase or word of this
ordinance should be held to be invalid or unconstitutional by a court of competent jurisdiction,
such invalidity or unconstitutionality thereof shall not affect the validity or constitutionality of
any other section, subsection, sentence, clause, phrase or word of this ordinance.
Section 5. Effective date. This ordinance shall take effect five days after adoption.
.....
ADOPTED by the City Council and APPROVED by the Mayor thi~ day ot::fcAt"Jua<¥-,
2010.
CITY OF MARYSVILLE
By~td
Dennis Kend~ll, Mayor
ATTEST:
By
APPROVED AS TO FORM:
By !J ~(LV-J~
f-Grant Weed, City Attorney
Date of Publication: ~/:2.-7/(
Effective Date: 'II /lO
08
1 Chapter 14.03 RULES FOR CONSTRUCTION,INSTALLATION AND
2 CONNECTION
3 Sections:
4 14.03.010 Specification manual.
5 14.03.020 Standard specifications for municipal public works construction.
6 14.03.030 Location ofutility lines -Easements.
7 14.03.035 Construction setbacks from utility lines.
8 14.03.040 Water meters.
9 14.03.050 Fire hydrants.
10 14.03.060 Maximum distance for water service connections.
11 14.03.070 Developer-installed water service connections.
12 14.03.080 Water supply cross-connections.
13 14.03.090 Utility connections to unoccupied properties prohibited and/or forfeited.
14 14.03.200 Private sewer lines.
15 14.03.25WOO Frontage requirements -Water and sewer.
16 14.16.04003.300 Connections required-Storm Sewer System.
17 14.~03.310Extensions·for full lot frontage-Storm Sewer System.
18
19 14.~03.320Application for connection,application fee and issuance ofpermit -Storm Sewer
20 System.
21 14.16.07003.330 Inspection Fees -Storm Sewer System.
22 14.03.400 Registered engineer required.
23 14.03.410 As-built drawings.
24 14.03.420 Conveyance to city.
25 14.03.430 Insurance,bonding and indemnification.
26 14.03.500 Variances.
27 14.03.010Specificationmannal
28 Byresolution the city council may adopt a specification manual establishing rules,regulations and
29 technical specifications relating to the construction ofutility lines and the installation and connection of
30 utility services.Copies ofthe specification manual shall be available for inspection during all business
31 hours ofthe city at the office ofthe city clerk and at the office ofthe utility department.Copies maybe
32 purchased in accordance with the fees set forth in MMC 14.07.005.The specification manual may be
33 amended by resolution ofthe city council.In any instance where the specification manual conflicts with
34 the provisions ofthis chapter,the provisions ofthis chapter shall govern.(Ord.2106 §10,1996;Ord.
35 1434,1985).
36 14.03.020 Standard specifications for municipal public works construction.
37 All materials and construction methods used for extensions and additions to the city utility system shall
38 conform to the most current edition ofthe standard specifications for road,bridge and municipal
39 construction as prepared by the Washington State Department ofTransportation and the American Public
40 Works Association,Washington State Chapter,as the same.may be modified by the city's specification
41 manual.(Ord.1434,1985).
42 14.03.030 Location of utility Iines-Easements.
Item 10 - 10
43 (1)All public utility lines shall be installed in public streets or alleys or in easements which have been
44 granted to and accepted by the city for such purposes.
45 (2)Utility easements granted to the city shall be not less than 10 feet in width;provided,that when such
46 easements extend from the end ofan existing public road,or extend along the alignment ofany
47 anticipated future public road,such easement shall be not less than 20 feet in width.(Ord.1434,1985).
48 14.03.035 Construction setbacks from utility lines.
49 No structure shall be erected within utility easements.Further,all structures shall be set back a
50 minimum of10 feet from the center ofany utility line,as-built.(Ord.1786,1990;Ord.1726,1989).
51 14.03.040 Water meters.
52 The consumption and use ofall water taken from the city water system shall be metered at each
53 individual connection.Water meters shall meet the specifications ofthe city and shall be the property of
54 the city utility system.Individual water meters shall be required for each detached single-family
55 residence.A master meter may be used for duplexes,multiple-family dwellings,condominiums and
56 mobile home parks where there is single ownership or centralized administration.Water meters shall be
57 required for each commercial,industrial and public facility connection.All water meters shall be placed
58 within public right-of-way,or within an easement granted to the city,and shall be directly accessible at all
59 times by city employees.(Ord.1434,1985.)
60 14.03.050 Fire hydrants.
61 (1)Fire hydrants meeting city specifications shall be installed on all extensions ofthe city water system
62 at the time such extensions are constructed.All hydrants shall be owned and maintained bythe city.The
63 location and frequency offire hydrants shall be specified by the city utility department and fire
64 department;provided,that fire hydrants in single-family residential zones shallbe spaced not.more than
65 600 feet apart,and fire hydrants in multiple-family,commercial and industrial zones shall be spaced not
66 more than 300 feet apart.All fire hydrants shall have three ports.
67 (2)No person shall plant any vegetation,erect any structure or perform any action which results in
68 obstructing the view ofa fire hydrant for a distance of50 feet.The owner and/or occupant ofany area in
69 which a hydrant is located shall be responsible for removing weed and tree growth from around the
70 hydrant for a distance ofnot less than 10 feet.(Ord.1434,1985).
71 14.03.060 Maximum distance for water service connections.
72 The length ofany water service connection owned by the city (i.e.,the line between the water main and
73 the water meter),and the length ofprivate water lines (i.e.,the line between the water meter and the
74 building)shall be subject to approval ofthe utility department.As a guideline,110 feet should be the
75 maximum length for a service connection,and 500 feet should be the maximum length for a private line.
76 (Ord.1434,1985).
77 14.03.070 Developer-installed water service connections.
78 A developer may install his own water service connections,including the meter box (but excluding the
79 meter),provided that it complies with all specifications ofthe city.In cases ofnew subdivisions,the
Item 10 - 11
developer shall install all water service connections. Installation of service connections shall be coincident
with the installation of the water main. Service connections shall be shown on a water extension drawing
and shall be subject to approval by the utility department. Service connections shall be conveyed to the
city as a condition of obtaining water service. (Ord. 1434, 1985).
14.03.080 Water supply cross-connections.
The provisions of Chapter 14.10 MMC relating to water supply cross-connections are incorporated
herein by this reference. (Ord. 1434, 1985).
14.03.090 Utility connections to unoccupied properties prohibited and/or forfeited.
(1) The city shall not sell utility connections, accept payment for capital improvement fees or allow the
installation of water meters, for any unoccupied property or any property which is the subject of a
pending development application until such time as all water and sewer utility infrastructure has been
constructed and approved and either final plat approval, final binding site plan approval, final
commercial/multifamily site plan approval, conditional use permit approval, or a building permit for
previously platted individual lots is or has been issued.
(2) Any property connected to city utilities with a two-inch water meter, or larger, which remains
unoccupied for 12 consecutive months, or uses no utility services for 12 consecutive months, shall forfeit
its vested right to a utility connection, and at such time as it seeks to reactivate its connection it shall be
subject to then-prevailing rules and regulations regarding utility availability for new customers. (Ord.
2557 § 1, 2004; Ord. 2375 § 3, 2001; Ord. 1810, 1990).
14.03.200 Private sewer lines.
Private sewer lines shall be constructed and maintained in accordance with the Engineering Design and
Development Standards. A sewer line constructed on private property from the boundary of the public
right-of-way/easement to the structure being served shall be privately owned and maintained. A private
sewer shall serve no more than one lot. As a guideline, a private sewer shall be no longer than 500 feet,
subject to approval by the utility department. A private sewer shall not cross any lot under different
ownership without express approval by the city of all legal documents authorizing the same. The
construction of all private sewers shall conform to the specifications of the city, including the depth,
grade, and installation of inspection tees and points of connection; cleanouts shall be installed at least
every 100 feet along a private sewer. Only authorized employees of the city utility department may
connect any private sewer to a public sewer.
The utility department may require the installation of a grease, oil or sand interceptor, or any
combination of these, on any private sewer line where it is deemed necessary to intercept excessive
amounts of these materials. These interceptors shall be installed on private property and maintained in a
satisfactory manner by the owner of the private sewer line.
Maintenance, repair and replacement of all private sewers is the responsibility of the owner. If the city
determines that such work is necessary to protect the integrity of the public sewer system, written notice
shall be sent to the owner specifying the time and manner in which the work must be completed. If the
owner fails to comply with the notice the city may forthwith cause the work to be done and charge the
cost thereof, plus 20 percent, to the owner. (Ord. 1434, 1985).
14.03.30250 Frontage requirements– Water and sewer.
Item 10 - 12
119 All lots connecting to city water shall have frontage on a distribution main;all lots connecting to city
120 sewer shall have frontage on a collection main.At the time ofconnection,the property owner shall be
121 required to extend the main(s)for the full public or private road frontage ofthe lot on which the structure
122 to be connected is located,including both frontages ofa comer lot.Ifthe lot does not front on a public or
123 private road for its full width,the main(s)shall be extended to the boundary line ofthe nearest adjoining
124 lot which may be anticipated to require connection to the main(s)in the future.Ifit can be shown that no
125 future expansions beyond the applicant's lot will occur,a variance may be applied for pursuant to the
126 provisions ofMMC 14.03.500.(Ord.2375 §4,2001;Ord.1646,1988;Ord.1434,1985).
127 14.03.300 ~Connections required -Storm Drainage System.
128 (1)The owner ofany property which is not connected to the public storm drainage system shall be
129 required to extend any storm drainage line which is within 200 feet ofthe property,and to connect to and
130 use the same for all developed portions ofthe property,under any ofthe following circumstances:
131 (a)As a condition offinal approval ofa subdivision;
132 (b)As a condition offinal approval ofa short subdivision;
133 (c)As a condition offinal approval ofa binding site plan for any mobile home park,condominium,
134 planned unit development,industrial parkor shopping center;
135 (d)As a condition ofany building,grading,paving or other development approval,includingrezones or
136 conditional use permits,which will have a significant adverse impact upon storm drainage,as determined
137 by the public works director or designee.
138 (2)The public works director ordesignee may waive the requirement ofsubsection (1)ofthis section
139 on the following grounds:
140 (a)Ifthe public works director or designee finds that the capacity or condition ofthe existing public
141 storm drainage system is insufficient or inadequate to serve the subject prop.erty;or
142 (b)Ifthe public works director ordesignee finds that it would cause a practical difficulty to require the
143 connection ofthe subjectpropertyto the public storm drainage system by reason ofcircumstances which
144 are unique to the property and not generally shared by otherproperties in the vicinity;or
145 (c)Ifthe public works director or designee finds that proposed on-site storm waterBMPs are adequate
146 under the requirements ofthis title.
147 No such waiver shall be granted which would be detrimental to the public health,safety,welfare or
148 environment,or which would be inconsistent with the long-range plans for the public storm drainage
149 system.In all cases where a waiver is granted,the property owner shall be required to strictly comply
150 with storm water retention/detention requirements ofChapter 14.15 MMe.
151 The decision ofthe public works director or·designee regarding such waivers shall be final,·subject to
152 appeal to the city council;provided,that in cases where a property owner has applied for development
153 approval which is to be ruled upon by the city council itself,waivers referred to herein shall be
154 determined by the city council after taking into consideration the recommendation ofthe city engineer.
155 (Ord.2694 §3,2007;Ord.2245 §3,1999).
Item 10 - 13
156 14.1'.OS003.310 Extensions for full lot frontage -Storm Drainage System:
157 Whenever·a property owner desires to connect to the public storm drainage system,the property owner
158 shall be required to extend the storm drainage lines for the full frontage ofthe lotwhich is being
159 connected.Ifit can be shown that no future extensions be.yond said lot will occur,a waiver may be
160 obtained from the public works director or designee,and the owner need only extend the line to the
161 nearest point ofconnection on the lot.(Ord.2245 §3,1999).
162 14.~03.320 Application for connection,application fee and issuance of permit -Storm
163 Drainage System.
164 The owner ofany property desiring to connect to the public storm drainage system shall apply for the
165 connection on such forms as may be prepared and made available by the city public works department.
166 The application shall include,at a minimum,a drawing showing the complete on-site drainage system
167 which will be connected to the public storm drain.For applicable fees·see Ch.14.07 MMC.Aft
168 OOf'lisation fee of$50.00 shall bef'aid to tlle sity slerk.Upon approval ofthe application by the public
169 works director ordesignee,a connection permit shall be issued which shallbe valid for a period ofsix
170 months thereafter.(Ord.2245 §3,1999).
171 14.1'.07003.330Inspections Fees-Storm Drainage System,:
172 All connections to the public storm drainage system shall be inspected bythe city engineer.In the event
173 that a storm drainage line is to be deeded to and accepted bythe city,the party constructing the same shall
174 pay the city an inspection fee per efta12terCh.14.07MMCof$0.25f'er linealfeot.·No line or facility shall
175 be accepted by the city until all inspection fees have been paid and until the city engineer certifies that the
176 same have been constructed in accordance with city specifications.(Ord.2245 §·3,1999).
177
178 _14.03.400 Registered engineer required.
179 The design and construction ofwaterand sewer mains which are to be connected to the city utility
180 system·shall be supervised by a registered professional engineer ofthe state ofWashington.Details and
181 methods ofconstruction shall conform to the city specifications manual.All construction shall be subject
182 to inspection and approval by the city.Responsibility for providing line and grade and taking measures
183 for as-built drawings shall rest upon the owner's engineer.(Ord.1434,1985).
184 14.03.410 As-built drawings.
185 As-built drawings ofthe completed installation ofthe utility lines shall be submitted to the city utility
186 department for approval by the city engineer.(Ord.1434,1985).
187 14.03.420 Conveyance to city.
188 All extensions to the public utility system shall,at the city's sole discretion,be subject to conveyance
189 toeoflY;eyed to the city by bill ofsale.').and such conveyances shall be accompanied by a warranty ofthe
190 grantor that the utility lines,facilities and appurtenances are free ofdebt and were constructed in
191 accordance with city standards and specifications.The grantor shall further warrant the labor and
192 materials used in the construction for a period of one yeartwo years from the date ofthe conveyance to
Item 10 - 14
193 the city and shall indemnify and hold the city harmless from any damages arising from defective materials
194 or workmanship.Ifthe lines or facilities are on or cross private property.1 the grantor shall convey to the
195 city the required easements for constructing,repairing,maintaining,altering,changing,controlling and
196 operating the lines or facilities in perpetuity.(Ord.1434,1985).
197 14.03.430 Insurance,bonding and indemnification.
198 Any party installing,repairing,extending or modifying utility lines in public right-of-way/easement,
199 which lines are connected,or to be connected,to the city's utility system,shall comply with the
200 following:
201 (l)Prior to commencing work,a restoration bond shall be posted in such amount as is required by the
202 governmental agency havingjurisdiction over the public right-of-way.
203 (2)Prior to commencing work,a performance bond shall be postedinsuch amount as is required by the
204 city engineer.The bond shall guaranty expeditious completion ofthe project in compliance with the
205 approved plans and specifications,and shall warranty the materials and workmanship for a period ofefta
206 ~wo years after acceptance by the city.
207 (3)Prior to commencing work,proofofinsurance shall be submitted_vlith preperty aamage limitsef
208 net less than $300,000,ana beaily injury limits efnet less than $500,000 per persen ana $1,000,000 per
209 aeeiaent..for Commercial General liability insurance with limits not less than $1,000,000 per occurrence,
210 $2,000,000 general aggregate,$2,000,000 products-completed operations aggregate limit:and Auto
211 Liability insurance with a minimum combined single limit for bodily injury and property damage of
212 $1,000,000 peraccident.The.city ofMarysville shall be namedas an additional insured party under the
213 Commercial General Liability insurance policX.
214 (4)The party performing the work,its heirs,successors and assigns,shall indemnify the city of
215 Marysville,and hold it harmless,from all claims,actions or damages ofevery kind and description which
216 may accrue to or be suffered by any person or persons or property by reason ofthe perfoffil.ance ofsuch
217 work,the character ofmaterials used,the manner ofinstallation,or by improper occupancy ofrights-of-
218 way.In case any suit or action is brought against the city for damages arising outofor by reason ofany of
219 the above causes,the party, its heirs,successors and assigns,shall defend the same at its own cost and
220 expense and shall satisfy any judgmentafter the suit or action shall have been determined,ifadverse to
221 the city,and further shall reimburse the city for reasonable attorney's fees expended by the city in
222 connection with the same.(Ord.1434,1985).
223
224 14.03.500 Variances.
225 The city engineer shall have authority to administratively grant a variance from any rule,regulation or
226 requirement ofthis chapter or ofthe specifications manuals incorporated in this chapter by reference.
227 Application for such a variance shall be filed,in writing,with the city clerk together with a filing fee as
228 set forth in MMC 14.07.0051A.c15.12.010.The city engineer is authorized toissue variances in cases of
229 special hardships,unique circumstances and practical difficulties.No variance shall be granted which
230 would be detrimental to the public health,welfare or environment,or which would be inconsistent with
231 the long-range plans ofthe Marysville utility system.Conditions may be imposed upon the granting ofa
232 variance to ensurethe protection ofthe public health,welfare and environment.Each variance shall be
233 considered on a case-by-case basis,and shall not be construed as setting precedent for any subsequent
Item 10 - 15
234 application.The decision ofthe city engineer on a variance application shall be final,subject to appeal to
235 the city land use hearing examiner pursuant to the procedure ofChapter 2.70 MMC and Chapter 15.11
236 MMC within a 20-day period after the written decision ofthe city engineer.(Ord.2375 §5,2001;Ord.
237 2106 §11,1996;Ord.1434,1985).
1 Chapter 14.05 RULES FOR CUSTOMERS -PAYMENT AND
2 COLLECTION OF ACCOUNTS
3 Sections:
4 14.05.010 Rules for water shortage emergencies.
5 14 .05.020 Disellarge restrietiofls ifltO saflitai)'sev/ers
6 14.05.030 Utility bills -Delinquent accounts -Liens
7 14.05.040 Delinquent bills -Service charge
8 14.05.050 Surcharge for NSF checks
9 14.05.060 Voluntary discontinuance ofwater service
10 14.05.070 Involuntary discontinuance ofwater service
11 14.05.080 Disconnection and reconnection charges
12 14.05.090 Fees for utility search services
13 14.05.010 Rules for water shortage emergencies.
14 The provisions·ofChapter 14.08 MMC relating to water shortage emergencies are incorporated by
15 reference.(Ord.1434,1985).
16 14.05.020 DiselttlFge FestFietieDs iDte stlBittlry seweFS.
17 ~tO persofl or party shalldiseharge,or eause to be disellarged,iflto aTly saflitaryse\ver liRe or faeility,
18 tIle fo11O:V:iflg:.
19 (1)Any storm v:ater,surfaeev/ater,roofruRoff,subsurfaee draiflage,eooliflg v:ater or uHpolluted
20 ifldusttial proeess 'Naters;
21 (2)l\ny liquid or yapor llaviflg.a temperature Iligher tIlaTl.150 degrees FallreHlleit;
22 (3)lAdlYvlater orv:astev.rfliell may eomaifl more tllafl 100 parts per tnilliofl by 'Neight ofoil,fat or
23 grease;
24 (4)AflY gasolifle,beflzefle,flaplltlla,fuel oil or otller flammable or eJqJlosiye liquid,solid or gas;
25 (5)lAJlY garbage tllat Ilas flOt beefl properly shredded to a size ofOfle halfiflell ifl aflY direetiofl;
26 (6)l\:fly aslles,eiflders,safld,mad,strw;:,slla=vings,metal,glass,rags,featIlers,tar,plasties,v/ood,
27 pauHell maflure or aflY otllersolidor viseous substaTlee eapable ofeausiflg obstruetiofl to tIle flo';;iR tIle
28 sev:ers or otller iflterfereflee y:itll tIle proper operatiofl oftIle sey:age treatmefltsystem;
29 (7)lA.rflY y:aters or \vastes llaviflga pH lo'yver tIlaR five aflrl fiJ:e teHth.s orhigher.th:aTl flifle or Ilaviflg aTly
30 other eorrosiv:e property eapable ofeausiflg damage or llazard to struetures,eqaipmeflt or persoftfleloftIle
31 sey:age system;
Item 10 - 16
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(8)lAdly\vaters.or '.vastes eOfitaifiifig a tOJde or pOiSOfiOUS subst8:flee ifi a suffieiefit quantity to iRjure or
ifiterfere \vith aftY sey;age treatmefit proeess or eOfistitute a fta23ara tohum8:fls or afiimals or ereate afiY
hft23ara to hl:1ffl:8fls or 8:flimals .or ereate aftY fta23ara ifi the reeeivifig '.vaters ofthe sey/age treatmefit s)Tstem;
(9)l'\t1y Y/aters or Ylastes eOfitaifiifigmore thafi 750 mg/l (parts per milliofi)by \veigflt ofsuspefiaea
~,
(10)li five aay bioehemieal OJ(ygefi aemafia greater th8:fl 750 mg/l (parts per milliofi)·by weight;
(11)l'\ny fioJdous or maloaorous gas or substafiee eapable of ereatifig a publie fiUisafiee;
(12)lAdly vlaters or \vastes havifig 8:fl average aaily flo\v greater thafi.tVlO pereefit ofthe av:erage aaily
sevlage flO'll ofthe publie SeYlage system ifitO vmiehthe '.vaters or Vlastes are about to be aisehargea;
(13)lA.cfiY diseharge v/hieh eJ(eeeas the maJ(imum mass emissiofiS limit fora'rerage poufias per aay of
bioehemieal OJ(ygefi demafid ealeulatea as follo:v/s:(2q~ofthe maJ(imUill aaily sey/age flO'll permittea for
the eity's VlasteY/ater treatmefit faeility)J((300 mg/liter)J((8.34).(Ora.2531 §1,2004;Ora.1797,1990;
Ora.1434,1985)..
14.05.030 Utility bills-Delinquent accounts -Liens.
-Combined billing statements for the garbage,surface water,water and sewer utilities shall be sent to all
customers on a regular and periodic basis to be determined by the finance director.All bills shall be
mailed to the address ofthe owner ofthe property being served by the utilities,as the address appears in
the records ofthe city utility department.Upon written request ofan owner,billing statements may be
sent directly to the occupant ofthe property being served;however,in such cases the owner shall remain
ultimately liable for payment ofthe bill,and the property shall remain subject to a lien for a delinquent
account,as provided below.
All payments on utility bills shall be applied first to the garbage account,second to the surface water
account,third to the sewer account,and fourth to the water account.In the event that any fees or charges
assessed for such services are not paid within the date set forth on the billing for such services,they shall
be considered delinquent and shall automatically constitute a lien against the property to which the
services were rendered.Such a lien,for up to four months ofcharges,shall encumber the property,and
shall be the obligation ofthe owner ofthe property,its heirs,successors and assigns,until the same is
paid in full.The city may enforce the lienby shutting offwater,sewer and/or garbage service until all
delinquent and unpaid charges are paid in full;provided,that discontinuance ofservice shall be subject to
the provisions ofMMC 14.05.070.(Ord.2654 §1,2006;Ord.1434,1985).
14.05.040 Delinquent bills-Service charge.
For each notice sent to a utility customer advising the customer that an account is delinquent or that
utility service will be discontinued by reason ofthe delinquency,there shall be a service charge added to
the account as set forth in MMC 14.07.005.The finance director,orhis designee,is authorized to waive
the service charge under the following circumstances:
(1)Where a utility customer has made arrangements withthe city,prior to the date the billing is due,for
deferral ofthe payment ofthe bill;
Item 10 - 17
69 (2)Where another public agency must obtain approval for payment ofthe billing and the customer's
70 payment cycle is inconsistent with the city's billing cycle;or
71 (3)In such other circumstances wher~,in the judgment ofthe finance director or his designee,the
72 customer can demonstrate a bona fide economic hardship.(Ord.2106 §12,1996;Ord.1861,1991;Ord.
73 1434,1985).
74 14.05.050 Surcharge for NSF checks.
75 Ifa utility account is dishonored by the drawer's bank by reason ofinsufficient funds,a surcharge,as
76 set forth in MMC 14.07.005,shallbe added to the utility account.(Ord.2106 §13,1996;Ord.1434,
77 1985).
78 14.05.060 Voluntary discontinuance ofwater service.
79 (1)A customer may request voluntary discontinuance ofwater service during periods that the premises
80 are vacant.Three days'advance notice of such discontinuance shall be given to the city,and the customer
81 shall pay the city any delinquent fees or charges,plus a shutoff fee as specified inMMC 14.07.005.
82 Following such discontinuance,no fees for water or sewer service shall accrue,and no liens shall
83 accumulate,until the service is reconnected.
84 (2)In the event that the occupants ofpremises have allowed delinquent utility bills to accrue,the owner
85 ofthe premises,or the owner ofa delinquent mortgage thereon,may give the city written notice to
86 discontinue water service.The notice shall be accompanied by payment ofall delinquent and unpaid
87 charges owedto the city with respect to the premises,together with a shutoffcharge,as specified in MMC
88 14.07.005.The city shall then discontinue water service to the premises,and no fees,charges or liens
89 shall accrue thereafter with respect to the premises until the service is reconnected.(Ord.2106 §14,1996;
90 Ord.1434,1985).
91 14.05.070 Involuntary discontinuance ofwater service.
92 (1)Waterservice may be discontinued bythe city for any ofthe following reasons:
93 (a)For delinquent and unpaid charges,as specified in MMC 14.05.030;
94 (b)For the use ofwater and sewer utilities for purposes or properties other than that specified in the
95 application;
96 (c)For willful waste ofwater through improperorimperfect piping,equipment or otherwise;
97 (d)When a customer's piping or equipment does not meet the city's standards,or.fails to comply with
98 other applicable codes and regulations;
99 (e)For tampering with property ofthe city utility system;
100 (f)In case ofvacation ofthe premises by the customer;
101 (g)For the use ofthe utility lines in a manner which adversely affects the city's service to its other
102 customers;
Item 10 - 18
103 (h)For fraudulent or improper obtaining or use ofutility service.
104 (2)Except in the case ofdanger to life or property,fraudulent use,impairment ofservice,or violation
105 oflaw,the city shall use its best efforts to comply with the following procedures prior to an involuntary
106 discontinuance of service:
107 (a)The city shall send the owner and occupant ofthe premises,using addresses shown in the city
108 utility records,written notice that water service to the property will be shut offon a date not lessthan 10
109 days thereafter unless the delinquencies are paid in full.The notice shall state that the owner and occupant
110 ofthe premises have a right to a hearing before the city administrator for the purpose ofresolving
111 disputed accounts.A request for such a hearing must be made not less than five days prior to the shutoff
112 date.At the hearing the city administrator is authorized to compromise and settle disputes in the interest
113 ofjustice;provided,the city administrator shall not be authorized to waive or reduce bills which are
114 legitimately due,or to lend the city's credit by allowing a deferred payment schedule.
115 (b)Ifservice is not discontinued within three days afterthe stated shutoffdate,unless other mutually
116 acceptable arrangements have been made,the shutoffnotice shall become void and a new notice shallbe
117 required before the service can be disconnected thereafter.
118 (c)In the event ofa disputed account,at any time before the city shuts off service,the owner.or
119 occupant ofthe premises may tender the amount he claims to be due;provided,that the amount must be
120 reasonably supported by documentevidence.The right ofthe city to thereafter shut offservice shall not
121 accrue until the dispute has been administratively orjudicially resolved.
122 (d)Except in case ofdanger to life orproperty,'no disconnection shall be accomplished on Saturdays,
123 Sundays,legal holidays or any day on which the city cannot reestablish service on the same orfollowing
124 day.
125 (e)Where service is provided to a master meter,or where the city has reasonable grounds to believe
126 that service is to other than the customer ofrecord,the city shall undertake all reasonable efforts to inform
127 the occupants ofthe service address ofthe impending disconnection.Upon request ofone or more service
128 users,where service is to other than the..subscriber ofrecord,an additional five days shall be allowed prior
129 to shutoffto permit the service users to arrange for continued service.
,130 (f)When a city employee is dispatched to disconnect service,that person shall be authorized to accept
131 payment ofa delinquent account,plus disconnection and reconnection charges,at the service address if
132 the same is tendered by a check made payable in the exact amount to the order ofthe city ofMarysville.
133 (g)Charges for disconnection and reconnection ofwater service,as specified in MMC 14.05.080,
134 shall be added to the account,and shall be paid in full prior to reconnection.
135 (3)At any time that an owner or occupant ofpremises requests a closing statement on a water account,
136 or requests a change ofthe customer's name on such account,the city shall read the water meter and shall
137 issue a statement showing the then-current account balance.Ifthe account is in a delinquent status,the
138 city shall immediately disconnect the water service without the necessity ofadvance written notice
139 pursuant to subsection (2)ofthis section.(Ord.1570,1987;Ord.1434,1985).
140 14.05.080 Disconnection and reconnection charges.
Item 10 - 19
141 (1)There shall be a shutoffcharge assessed for each voluntary or involuntary discontinuance ofservice;
142 provided,that the shutoffcharge shall be more ifthe utility department is required to make a special trip
143 for a single account.The disconnection charges are set forth in MMC 14.07.005.
144 (2)There shall be a reconnection charge assessed for each reconnection;provided,that the reconnection
145 charge shall be more ifthe utility department is required to make a special trip for one account.The
146 reconnection charges are set forth in MMC 14.07.005.Ifa customer insists upon a reconnection after 4:30
147 p.m.on weekdays,weekends or holidays,the fee for such after-hours reconnection is set forth in MMC
148 14.07.005.
149 (3)Ifservice is shut offby reason ofan account being delinquent at a single premises more than once
150 within a 12-month period,the shutoffand reconnection charges after the first time during the 12-month
151 period shall be doubled.(Ord.2106 §15,1996;Ord.1434,1985).
152 14.05.090 Fees for utility search services.
153 The following fees are established for services provided by the city in researching and calculating
154 property lien information and information regarding lien closing payofftotals for parcels ofreal property
155 in response to requests for such services:
156 (1)Twenty-five dollars per real property parcel for electronic inquiries by persons.or companies who
157 use the city ofMarysville website.Such fee shall allow multiple electronic inquiriesfor said parcel within
158 a 70-day time period.
159 (2)Thirty dollars for each manual search conducted by the city for those persons or companies who
160 choose not to use such electronic search means ofaccessing lien records.Such fee shall be imposed for
161 each manual search conducted regarding each parcel ofrealproperty.(Ord.2612 §1,2005;Ord.2598
162 §1,2005).
Item 10 - 20
1 Chapter 14.07 FEES,CHARGES AND REIMBURSEMENTS
2 Sections:
3 14.07.005 General fee structure
4 14.07.005A Repealed
5 14.07.010.Capital improvement charges
6 14.07.020 Utility main charge
7 14.07.030 Sewer and water extensions inspection charge
8 14.07.040 Water service installation fee
9 14.07.050 Sewer service installation fees
10 14.07.060 Water rates
11 14.07.070 Sewer rates
12 14.07.075 Rate adjustments
13 14.07.080 Reimbursement for oversized water and sewer mains
14 14.07.090 Recovery contracts
15
16 14.07.005 General fee structure.
17 The public works department is authorized to charge and collect the following fees:
Type ofActivity Fee
Land development review and See Chapter 15.12 MMC
construction inspection fees
Storm SeYfer iBspeetioB fee $60.0Q,LftOUT aBdlor eOBstikaftt fee
Street closure notice $60.00
Install/repair street·sign Materials and expenses
Street code variance See Chapter 15.12 MMC
Application for vacation ofstreets,$500.00,plus appraisals,cost ofpreparing legal descriptions
roads and alleys
Vegetation abatement Cost to abate plus a 10 percent surcharge (see MMC 12.36.020 and
12.36.030)
Storm connection fee $100.00
Construction water $3.50/1,000 gallons used
Hydrant water $50.00 setup +$3.50/1,000 gallons used
Sanitary sewer extension inspection $500.00 mfBimum for 500 feet or less =1=$1.00 per foot o¥er 500
charge feetSee chapter 15.12 MMC
SaBitary se:tyver iHstallatioB fee City iBstalled:eost per foot at time aBd lll&terials
(maiBliBe to riglTt of Y.ttty)
Sanitary sewer inspection fee $100.00 per connection
(right-of-way to residence)
Segregations (Local Improvement $100.00,plus actual engineering costs incurred by the city
Districty;g fees)
Disconnection charges:
Item 10 - 21
Voluntary disconnection ofservice $5.00
Involuntary disconnection of
service
$10.00;$20.00 ifthe utility department is required to make a special
trip for a single account in an involuntary disconnection situation
Reconnection charges:
Voluntary reconnection $5.00
Involuntary reconnection $10.00;$20.00 ifthe utility department is required to make a special
trip for a single account in an involuntary reconnection situation
Shut-off/turn-on fee after hours $75.00
(water)
Unauthorized connection:water or $200.00
sewer
Variances:water/sewer See Chapter 15.12MMC ($250.00)
Water system extension inspection $O.30/foot See Chapter 15.12 MMC
fee
Miscellaneous utility relocation Time·and materials
(hydrants,meters,blow-offs)
Water use violation:
Commercial $200.00
Residential $50.00
Water and/or sanitary sewer plan See Chapter 15.12 MMC
review
Water/sewer connection filing fee $20.00
Water/sewer system design $10.00 -$50.00
standard specifications manual
Account change water meter read $15.00
Recovery contract $500.00 minimum or one percent·ofproject +$100.00 collection fee
Emergency locate (after hours)$100.00
Late payment fees Five percent ofaccount for first notice;additional five percent of
account for second notice
Bank returned item fee $40.00
Photocopies See MMC 1.16.070
Blueprint copies See MMC 1.16.070
Stafftime See MMC 1.16.070
Tape duplication See MMC 1.16.070
Mailing costs See MMC 1.16.070
Item 10 - 22
18 (Ord.2780 §4,2009;Ord.2756 §1,2008;Ord.2554 §1,2004;Ord.2346 §1,2000;Ord.2267 §1,
19 1999;Ord.2106 §2,1996).
20 14.07.005A General fee structure.
21 Repealed by Ord.2554.(Ord.2375 §6,2001;Ord.2342 §1,2000;Ord.2290 §1,1999).
22 14.07.010 Capital improvement charges.
23 (1)Capital improvement charges shall be assessed on all new connections to the water and sewer
24 system.Capital improvement charges shall also be assessed for a remodel or expansion ofan existing
25 building or use.For purposes ofthis section,an "existing building or use"shall mean all commercial or
26 industrial buildings or uses,churches,schools orsimilar uses,and all residential buildings or uses where a
27 remodel or expansion increases the number ofdwelling units.The capital improvement charge constitutes
28 an equity payment by new and existing customers for a portion ofthe previously existing capital assets of
29 the system.Capital improvement charges also constitute a contribution to a long-term capital
30 improvement program for the utility system which includes acquisition ofnew or larger water sources,
31 construction ofwater storage and transmission·facilities,and construction ofsewer trunk lines and sewage
32 treatment facilities.Capital improvement charges shall be paid in full before a new connection or
33 expansion or remodel to an existing building or use shall be approved.All payments shall be deposited in
34 the utility construction fund and shall be made prior to building permit issuance for residential
35 construction and prior to issuance ofa certificate offinal occupancy for commercial/industrial
36 construction.
37 (2)The following capital improvement charges are established:
Residential Units
Connection Charges
Type of Connection City Water Outside Water City Sewer Outside Sewer
*Residential
1/1/2005 $3,675 $4,305 $3,120 $3,495EffectiveDate$4,750 $5,490 $4,490 $4,8901/1/2006
38 *Residentialliving units including multi-unit housing,mobile homes and motels.
Commercial/Industrial
Connection Charges
Water
City Outside City
Effective Date 1/1/2005 Effective Date 1/1/2005
0-2,000 gpm $1.64/sf 0-2,000 gpm $1.99/sf
2,001 -4,000 gpm $2.40/sf 2,001 -4,000 gpm $2.87/sf
4,001+gpm $3.16/sf 4,001+gpm $3.80/sf
Item 10 - 23
39 25%rate reduction for automatic sprinkler system.
Sewer
City Outside City
Effective Date 1/1/2005 Effective Date 1/1/2005
Retail SaleslManufacturingi $1.03/sf Retail SaleslManufacturingi $1.24/sfChurches/SchoolslDay Care Churches/SchoolslDay Care
OfficeslMedicallDentallNursing Homes $1.67/sf OfficeslMedicallDentallNursing Homes $2.00/sfandallotherusesnotlistedandallotherusesnotlisted
Warehouses/Storage $0.49/sf Warehouses/Storage $0.65/sf
Restaurants/Taverns $2.38/sf Restaurants/Taverns $2.86/sf
40 25%rate reduction for schools without kitchens.
Water Service Installation Fee
Effective Date 11/1/2006
5/8"x 3/4"$1,050
3/4"x 3/4"$1,075
1"$1,200
1-1/2"$1,600
2"Time and materials costs/minimum of$1,900
Drop-in Meter Fee
Effective Date 11/1/2006
5/8"x 3/4"$500.00
3/4"x 3/4"$525.00
1"$560.00
1-1/2"$750.00
2"$850.00
3."and over Charge time and material/$3,500 minimum
HotellMotel Connection·Charges
City Water Outside Water City Sewer Outside Sewer
1/1/2005 $1,405 $1,646 $1,193 $1,336EffectiveDate$1,816 $2,099 $1,717 $1,8701/1/2006
43 (3)"Floor space"is defined as the net square footage measured from the interior walls,including
44 interior partitions.
45 (4)The capital improvement charges for sewer connections shall be reduced by $50.00 per unit or
46 $0.045 per square foot when the affected property participated in a utility local improvement for the
47 construction ofthe sewer main.
Item 10 - 24
48 (5)Capital improvement charges for sewer connections to commercial and industrial units shall be
49 reduced by 50 percent for any floor space in the premises which is committed to being used as warehouse
50 space for storage purposes only.
51 (6)Ifthe use ofany premises connected to city utilities is converted from a residential occupancy to a
52 commercial or industrial occupancy (as defined in subsection (2)ofthis section),or from a warehouse use
53 to an active commercial or industrial use,the owner ofthe premises shall immediately report such
54 conversion to the city and shall pay the extra capital improvement charge which is then required for such
55 an occupancy.Failure to report such a conversion,and pay the extra charge,within 90 days ofthe new
56 occupancy shall result in the extra charge being doubled as a penalty.
57 (7)The capital improvement charge for utility connections in recreational vehicle parks shall be
58 calculated as follows:
59 (a)For each connection to a recreational vehicle pad,the charge shall be 50 percent ofthe charge
60 provided in subsection (2)ofthis section relating to residential living units.
61 (b)For every other connection in a recreational vehicle park,the charge shall be the same as provided
62 in subsection (2)ofthis section for residential living units.
63 (8)Ifa building with a lawful water and/or sewer connection to the city utility system is demolished
64 and replaced with a new building requiring utility connections,the capital improvement charges assessed
65 for the new connections shall be discounted by the amount which would have been paid,under current
66 schedules,for the connections which previously served the demolished building.(Ord.2670 §1,2006;
67 Ord.2607 §1,2005;Ord.2557 §2,2004;Ord.2556 §§1,3,2004;Ord.2346 §1,2000;Ord.2345 §1,
68 2000;Ord.2305 §1,1999;Ord.2267 §2,1999;Ord.1841 §1,1991;Ord.1509,1986;Ord.1496,1986;
69 Ord.1492 §§1,2,1986;Ord.1480,1986;Ord.1434,1985).
70 14.07.020 Utility main charge.
71 (1)A utility main charge shall be assessed to all new connections which utilize water orsewer mains
72 already existing across the frontage ofthe property being served.The charges constitute payment to the
73 city for the actual costs incurred in originally constructing the main across the·frontage ofthe subject
74 property.Such charges shall not apply when the affected property participated in a utility local
75 improvement district for the construction of a water or sewer main;nor shall such charges be applicable
76 in cases where the main was built and totally paid for by the owner ofthe subject property or by any
77 private developer who may still be entitled to reimbursement from abutting owners pursuant to a recorded
78 recovery contract (see MMC 14.07.090).
79 (2)The utility main charge shall be the actual construction cost ofthe main in question up to eight
80 inches in size for a water main and up to 10 inches in size for a sewer main.The charge shall be prorated
81 on a front foot basis.For convenience in computing the rates charged for older mains in the city,they are
82 restated as follows:
83 (a)Water mains constructed prior to October 1,1967:$2.25 per front foot;
84 (b)Water mains constructed in 1976 or 1977:$5.50 per front foot;
85 (c)Sewer mains constructed prior to January 1,1970:$3.00 per front foot;
Item 10 - 25
86 (d)Sewer mains constructed in 1976 or 1977:.$9.00 per front foot.
87 The city utility department shall keep a record,open to the public,ofthe prorated construction cost for
88 all city utility mains.
89 In cases where the city has participated with a private party or utility local improvement district in
90 constructing amain,only that portion ofthe total cost actually paid by the city shall be used for
91 calculating the utility main charge.
92 (3)In addition to the per-front-foot cost reference in subsection (2)ofthis section,the city may assess a
93 charge for any other water or sewer mains constructed with city funds subsequent to 1976.The public
94 works department shall establish a schedule offees and a map open to the public at the public works
95 department showing the utility mains which are subject to this charge.The per-front-foot charge for such
96 mains constructed after 1976 shall be administratively calculated by the city engineer;provided the total
97 ofall fees charged on a front-foot basis shall not exceed the total original cost ofthe project,including all
98 construction,engineering,right-of-way and easement acquisition,and administrative fees.(Ord.2067,
99 1996;Ord.1635,1988;Ord.1434,1985).
100 14.07.030 Sewer and water extensions inspection charge.
101 Any party extending a public sewer line or water system line shall pay the city an inspection fee.This
102 charge is to pay for the cost ofcity employees inspecting the installation ofthe sewer or water line to
103 assure.that it complies with city standards.The charges are set forth in MMC 14.07.005,and must be paid
104 prior to any connection being approved.(Ord.2106 §16,1996;Ord.1434,1985).
105 14.07.040 Water service installation fee.
106 (1)A service installation fee shall be assessed at the time any property is connected to the city's water
107 system.In return for the fee the city shall install the.service connection,including the water meter.At the
108 owner's option the service connection may be privately installed,in which case the city will only charge
109 for the installation ofthe meter.
110 (2)Water service installation fees are established in MMC 14.07.010(2).(Ord.2345 §1,2000;Ord.
111 2305 §1,1999;Ord.1434,1985).
112 14.07.050 Sewer service installation fees.
113 (1)A service installation fee shall be assessed at the time any property is connected to the city's sewer
114 system by the installation ofa side sewer.For purposes ofthis section "side sewer"means that section of
115 pipe betweenthe public sewer main and the private property line.In return for the fee the city shallinstall
116 the side sewerand inspect the private sewer froin the property line to the building.At the owner's option
117 the side sewer may be privately installed,in which case the city will only charge an inspection fee.
118
119 (2)Sewer service installation and inspection fees are set forth in MMC 14.07.005.(Ord.2106 §17,
120 1996;Ord.1434,1985).
121
122 14.07.060 Water rates.
123 (1)Definitions.
124
Item 10 - 26
125 (a)"Water rates,"as used herein,shall refer to the charge assessed by the city for all water consumed
126 or used on property connected to the city water system.The rates shall be based upon the quantity of
127 water passing through the water meter during each billing period.
128
129 (b)The normal "billingperiod"shall be a two-month cycle and shall be that period falling between
130 two consecutive meter read dates.Charges for periods ofless than two months shall be prorated both as
131 to minimum charge and as to consumption;provided,however,the city may,at its discretion,elect to
132 use a monthly billing period for selected accounts.Ifa monthly billing period is used,the consumption
133 allowance and rate shall be one-halfthat set forth in the bimonthly rate schedule.
134
135 (c)Billing Increments.Charges for water shall be computed on the nearest 1,000 gallons of
136 consumption.
137
138 (d)"City rates"are those which shall be charged to all properties connected to the water system
139 which are located within the city limits ofMarysville.
140
141 (e)"CWSP rates"are those which shall be charged to all properties connected to the water system
142 which are located outside the city limits ofMarysville but are within the coordinated water system
143 planning boundary.
144
145 (f)"OCWSP rates"are those which shall be charged to all properties connected to the water system
146 which are located outside the city's coordinated water system planning boundary.
147
148 (g)"Multiple residential units"shall be defined as attached dwelling units which share a common
149 water meter,including duplexes,townhouses,apartments and condominiums,and shall be defined as
150 including mobile home parks.
151
152 (h)"Single-family residential units"shall refer exclusively to detached single-family dwelling units.
153
154 (2)Minimum Water Rates.Minimum charges for each billing period,and consumption allowances for
155 such minimums,are established as follows:
Consumption Outside UGA
Meter Size Allowance City Rate Rural Rate Rate
Multiple Residential Units (per $24.17 $36.31 $48.25
unit)6,000
5/8"x 3/4"6,000 $24.17 $36.31 $48.25
3/4"x 3/4"9,000 $31.82 $47.74 $63.65
1"15,000 $47.23 $70.79 $97.41
1.5"30,000 $85.68 $128.52 $171.26
2"48,000 $132.19 $198.39 $264.38
3"75,000 $201.65 $302.43 $402.80
4"150,000 $393.21 $589.56 $785.81
6"360,000 $930.65 $1,396.58 $1,861.91
8"450,000 $1,161.78 $1,742.47 $2,323.05
Item 10 - 27
10"600,000 $1,546.12 $2,318.77 $3,092.44
12"840,000 $2,160.67 $3,240.95 $4,321.23
Overage Rate per 1,000 gals $2.60 $3.98 $5.20
Summer Surcharge over 40,000 $3.16 $4.79 $6.22
156 (3)Overage Rate.Consumption ofwater in excess ofthe bimonthly allowance specified above shall be
157 charged at a rate of$2.60 per 1,000 gallons ofoverage within the city,$3.98 per 1,000 gallons ofoverage
158 within the CWSP,and a rate of$5.20 per 1,000 gallons ofoverage outside CWSP.
159
160 (4)Summer Surcharge for Residential Users.Water consumption by single-family and multiple
161 residential units beyond 40,000 gallons bimonthly perunit shall be surcharged to 120 percent ofthe
162 applicable overage.The surcharge shall apply for services for the months ofMay,June,July,August and
163 September.
164
165 (5)Calculation.ofWater Bill for Multiple Residential Units.In calculating the water bill for multiple
166 residential units,the total number ofdwelling units served by a water connection shall be divided into the
167 water consumption for each billing period,expressed in gallons,to determine the average consumption
168 per dwelling unit.The water rates shall be based upon the average consumption per unit during the billing
169 period multiplied by the total number ofunits.
170
171 (6}Calculation ofWater Bill for Mobile Home Parks.The total water bill for mobile home parks shall
172 be calculated by applying the rate schedule to the total number ofpads or mobile home sites on the
173 premises which are in a condition ready for occupancy,regardless ofwhether the same are occupied
174 during the billin.g period or not;provided,that for the first 24 months after a mobile home park,or a new
175 addition thereto,is opened and connected to city utilities,its water bill·shall be calculated by applying the
176 rates onlyto such pads or mobile home sites as are actually occupied by mobile homes during each billing
177 period;provided,however,for mobile home parks whose utility meter with the city was first activated
178 less than three years preceding June 9,1997,the effective date ofOrdinance 2130,and for which billing
179 on all pads or mobile home sites has occurred for less than two years preceding June 9,1997,such mobile
180 home parks shall be granted an additional 12 months from June 9,1997,to pay only for such pads or
181 mobile home sites which are actually occupied during each billing period;provided,further,that allfees,
182 charges and rates paid by such mobile home parks to the city under prior provisions ofthis subsection and
183 MMC 14.07.070(4),a~such subsections originally read or as subsequently amended,shall be
184 nonrefundable notwithstanding the provisions ofthis subsection.
185
186 (7)Private.Fire Protection Rates.Private fire protection rates for properties inside.or outside ofthe
187 corporate limits ofthe city shall be as follows:
188
189 (a)Private hydrants,each:$37.33 per year;
190
191 (b)Wet standpipe systems:$37.33 per year;
192
193 (c)Dry standpipe systems:None;
194
195 (d)Automatic sprinkler systems:Each owner ofan automatic sprinkler system shall be charged a
196 monthly rate based upon the size ofthe water service line that serves the system.The following are the
197 bimonthly rates:
198
Size of Line Bimonthly Charge
Item 10 - 28
2-inch $40.60
3-inch $49.98
4-inch $61.40
6-inch $77.01
8-inch $100.98
10-inch .$126.99
12-inch $146.68
199 (8)Reduced Utility Charges in Special Cases.Upon application by a utility customer,the chief
200 administrative officer or designee shall have the discretion to make reasonable and equitable reduction in
201 utility accounts,on a case-by-case basis,in the following circumstances:
202
203 (a)Ifa private water line,valve,fixture,or·otherappurtenance is verified to be leaking as a result of
204 accidental damage or natural deterioration ofthe same,and not as a result ofabuse or willful neglect,
205 the water bill for the subject property during the period ofthe leak may be reasonably and equitably
206 reduced;provided,that a customer·shall be required to pay the base rate plus at least 50 percent ofthe
207 applicable overage rate for all water which was lost byreason ofthe leak.The sewer bill for the subject
208 property during the period ofthe leak may also be reasonably and equitably reduced to an amount not
209 less than the bill charged for the corresponding period the previous year.
210
211 (9)Calculation ofWater Bill for School Facilities.The city rate for water as set forth in subsection (2)
212 ofthis section shall apply to all school facilities,whether such facilities are within the city limits or not.
213
214 (10)Rate Relief.Low-income senior citizens and low-income disabled persons may be eligible for
215 water and/or sewer rate reliefpursuant to Chapter 3.63 MMC.(Ord.2758 §1,2008;Ord.2727 §1,2007;
216 Ord.2680 §§1,3,4,2006;Ord.2620 §§1,3,4,2006;Ord.2548 §§1,3,2004;Ord.2457 §1,2002;
217 Ord.2394 §1,2001;Ord.2181 §§1,2,1998;Ord.2130 §1,1997;Ord.2117 §§1,2,1997;Ord.2109§
218 1,1996;Ord.1840 §1,1991;Ord.1809 §1,1990;Ord.1789,1990;Ord.1434,1985).
219 14.07.070 Sewer rates.
220 (1)Definitions.
221 (a)The normal "billing period"shall be a two-month cycle and shall be that period falling between
222 two consecutive water meter read dates.Charges for periods ofless than two months shall be prorated;
223 provided,however,the city may,at its discretion,elect to use a monthly billing period for selected
224 accounts.Ifa monthly billing period is used,the rate shall be one-halfthat set forth in the bimonthly
225 rate schedule.
226 (b)"City rates"are those which shall be charged to all properties connected to the sewer system
227 which are located within the city limits ofMarysville.
228 (c)"UGArates"are those which shall be charged to all properties connected to the sewer system
229 which are located outside ofthe city limits ofMarysville but are within the urban growth area ofthe
230 city ofMarysville or that portion ofthe city ofArlington urban growth area which Marysville has
231 agreed by interlocal agreement to provide service.
232 (d)"OUGA rates"are those which shall be charged to all properties connected to the sewer system
233 which are located outside the Marysville city limits and outside the area where UGA rates apply.
Item 10 - 29
234 (e)"Single-family residences"shall refer exclusively to detached single-family dwelling units.
235 (f)"Multiple residential units"shall be defined as attached dwelling units which share a common
236 water meter,including duplexes,townhouses,apartments,and condominiums,and shall be defined as
237 including mobile home parks.
238 (g)"Commercial/industrial"refers to all nonresidential land uses which are not specifically itemized
239 or defined as being included within other classifications.
240 (h)"Satellite system rate"refers to that rate charged to the city by Lake Stevens Sewer District for the
241 "overlap"area as described in the interlocal agreementbetween the parties dated April 22,1999,plus
242 an administrative overhead cost of 15 percent.
243 (2)Calculation ofCommercial/Industrial Sewer Rates.Commercial/industrialsewer rates shall be based
244 uponthe quantity ofwater consumed or used on the premises during the billing period,as determined by
245 the water meter reading and the strength ofthe discharge as measured by total suspended solids (TSS)and
246 biochemical oxygen demand (BOD);provided,that a property owner may,at his own expense,arrange
247 the plumbing on commercial premises so as to separate water which will be discharged into the sewer
248 system from water which will not be so discharged,and a separate meter shall be installed to measure the
249 amount ofactual sewage discharged.In such·a case the sewer rate shall be based only on the actual sewer
250 use.The installation of such plumbing and meters must be inspected and approved by the city utility
251 department.
252 Where a commercial property is connected to sewer service but not to water service,the city council
253 shall determine the sewer rate to be charged on a case-by-case basis,using an estimated figure for water
254 consumption.
255 (3)Sewer Rates.Sewer rates are established as follows:
Classification City Rate Rural Rate Outside UGA
Rate
Single-family residential $66.40 $99.55 $133.21
Multiple residential units per unit $63.14 $94.76 $119.03
Hotels/motels per unit $46.51 $69.77 $93.02
Commercial (BOD/TSS·Range mg/l)minimum $66.40 $99.55 $133.21
Class 1 (31 to 100 mg/l)per 1,000 gallons $1.02 $1.53 $1.84
Class 2 (101 to 200 mg/l)per 1,000 gallons $1.33 $1.99 $2.60
Class 3 (201 to 300 mg/l)per 1,000 gallons $1.63 $2.50 $3.37
Class 4 (301 to 400 mg/l)per 1,000 gallons $2.30 $3.47 $4.69
Class 5 (401 to 500 mg/I)per 1,000 gallons $2.81 $4.23 $5.61
Class 6 (501 to 1,000 mg/l)per 1,000 gallons $4.34 $6.48 $8.67
Overnight camping
Individual connections perunit $46.51 $69.77 $93.02
Item 10 - 30
Other connections each $63.14 $94.76 $119.03
Schools
Minimum $66.40
Per 1,000 gallons $3.77
256 (4)Calculation ofSewer Rates for Mobile Home Parks.The total sewer bill for mobile home
257 parks shall be calculated by applying the rate schedule above to the total number ofpads or
258 mobile home sites on the premises which are in a condition ready for occupancy,regardless of
259 whether the same are occupied during the billing period;provided,that for the first 24 months
260 after a mobile home park,or a new addition thereto,is opened and connected to city utilities,the
261 sewer bill shall be calculated by applying the rates only to such pads or mobile home sites as are
262 actually occupied bymobile homes during each billing period;provided,however,for mobile
263 home parks whose utility meter with the city was first activated less than three years preceding
264 June 9,1997,the effective date ofOrdinance 2130,and for which billing on all pads or mobile
265 home sites has occurred for less than two years preceding June 9,1997,such mobile home parks
266 shall be granted an additional 12 months from June 9,1997,to pay only for such pads or mobile
267 home sites which are actually occupied during each billing period;provided further,that all fees,
268 charges and rates paid by such mobile home parks to the city underprior provisions ofthis
269 section and MMC 14.07.060,as such sections originally read or as subsequently amended,shall
270 be nonrefundable notwithstanding the provisions ofthis subsection.
271
272 (5)Restaurants,for the purpose ofsewer rates,shall be classified as Class 3 strength as
273 described in subsection (3)ofthis section.Restaurants without approved grease traps,including
274 those restaurants where a variance has been granted eliminating the necessity ofa grease trap,
275 shall be surcharged $2.12 per 1,000 gallons.
276
277 (6)Satellite System Rate.Notwithstanding any other rate established by this section,for that
278 area defined as the satellite system area,the city shall charge the same rate as charged by Lake
279 Stevens Sewer District plus an administrative fee of 15 percent.This rate shall be in effect for
280 such properties until such time as the city's sewer collection system is constructed and sewer
281 flows are diverted from the Lake Stevens Sewer District system to the city's sewer collection
282 system.
283
284 (7)Calculation for Sewer Rates for Schools.Schools sewer rates shall be based upon the
285 quantity ofwater consumed or used on the premises during the billing period,as determined by
286 the water meter reading;provided,ifthe water service is supplied to a school by other than the
287 city ofMarysville water system,the school district shall notify the city billing department ofthe
288 total consumption as billed by other such water purveyor.The city rate for sewer as set forth in
289 subsection (3)ofthis section shall apply to all school.facilities,whether such facilities are within
290 the city limits or not and whether public or privately operated.
291
292 (8)Rate Relief.Low-income senior citizens and low-income disabled persons maybe eligible
293 for water and/or sewer rate reliefpursuant to Chapter 3.63 MMC.(Ord.2758 §2,2008;Ord.
294 2727 §2,2007;Ord.2680 §§2,3,4,2006;Ord.2620 §§2,3,4,2006;Ord.2548 §§2,3,4,
295 2004;Ord.2531 §2,2004;Ord.2457 §2,2002;Ord.2394 §2,2001;Ord.2347 §1,2000;Ord.
Item 10 - 31
296 2284 §1,1999;Ord.2130 §2,1997;Ord.2117§3,1997;Ord.2109 §2,1996;Ord.1840 §2,
297 1991;Ord.1809 §2,1990;Ord.1798,1990;Ord.1434,1985).
298 14.07.075 Rate adjustments.
299 (1)Beginning in 2006,as part ofthe budget process,the rates and fees for water and sewer may be
300 adjusted annually by two percent.Any such adjusted rates and fees shall become effective January 1st of
301 the new budget year.Beginning in 2007,as part ofthe budget process,surface water fees may be adjusted
302 annually by two percent.Any such adjusted rates and fees shall become effective January 1st ofthe new
303 budget year.
304 (2)Proposed rate increases greaterthan the two percent will require a public hearing process prior to
305 adoption.All proposed rate adjustments will not be automatic but shall be justified and shall be reviewed
306 and approved by the city council.(Ord.2654 §2,2006).
307 14.07.080 Reimbursementfor oversized water and sewer mains.
308 In all cases,the city engineer shall determine the size and depth ofwater and sewer mains connected to
309 the city utility system.The determination shall be consistent with the city's comprehensive plan and the
310 long-range objectives for the water and sewer utility.Ifa property owner/developer ofresidential property
311 is required to install a water main with a diameter in excess ofeight inches or a sewer main with a
312 diameter in excess of 10 inches,and ifthe purpose ofsuch oversizingis to provide for future extension of
313 the main to adjacent properties within the utility service area,and not merely to meet the needs ofthe
314 property responsible for constructing the main,the city may reimburse the property owner for the
315 difference in material costs incurred solely by reason ofthe oversizing requirement.No such
316 reimbursement shall be made except upon the following:complete installation ofthe water or sewer main
317 and approval ofthe same by the city engineer;a submittal ofa bill of sale and warrantyfor the water or
318 sewer main to the city;certification ofthe oversizing costs,with such verification from the material
319 supplier and contractor as the city engineer may require;approval ofthe oversizing costs by the city
320 engineer;and approval ofthe reimbursement by the city council.(Ord.1434,1985).
321 14.07.090 Recovery contracts.
322 At the option ofthe city council,any party having constructed a public water or sewer line at its own
323 cost,extending over 200 feet from the nearest mainline,may be allowed to enter into a recovery contract
324 with the city providing for partial reimbursement to such party,or its assigns,for the costs ofsuch
325 construction,including the costs ofengineering and design work,and all costs oflabor and materials
326 reasonably incurred for the length ofthe improvements.Such contracts shall be governed by the
327 following provisions:
328 (1)Within 30 days after a utility line is accepted by the city and a bill ofsale/warranty is filed with
329 respect tothe same,the proponent ofthe recovery contract shall submit a request for the same,using a
330 form supplied by the city,together with supporting documentation showing all costs incurred in the
331 project.
332 (2)An assessment area shall be formulated based upon a determination by the city as to which parcels
333 ofreal estate will be directly benefited by the same.
334 (3)The reimbursement share ofall property owners in the assessment area shall be the pro rata share of
335 the total cost ofthe project,less any contributions paid by the city.Each reimbursement share shall be
336 determined by using a method ofcost apportionment which is based upon the benefit received by each
Item 10 - 32
337 property from the project.This will generally be prorated on a front-footage basis.There shall be no
338 reimbursement to the proponent for the share ofthe benefits which are allocated to its property.
339 (4)A preliminary determination ofarea boundaries and assessments,along with a description,ofthe
340 property owner's rights and options,shall be forwarded by certified mail to the property owners ofrecord
341 within the proposed assessment area.Ifany property owner requests a hearing in writing within 20 days
342 ofthe mailing ofthe preliminary determination,a hearing shall be held before the city council,notice of
343 which shall be given to all affected property owners.The city council's ruling shall be determinative and
344 final.
345 (5)The contract,upon approval bythe city council,shall be recorded in the records ofthe Snohomish
346 County auditor within 30 days ofsuch approval.The recorded contract shall constitute a lien against all
347 real property within the assessment area which did not contribute to the original cost.ofthe utility project.
348 (6)If,within a period of 15 years from the date the contract was recorded,any property within the
349 assessment area applies for connection to the utility line,the lien for payment ofthe property's
350 proportionate share.shall become immediately due and payable to the city as a condition ofreceiving
351 connection approval.
352 (7)All assessments collected by the city pursuant to a recovery contract,less the city's administrative
353 charge,shall be paid to the original proponent,its personal representative,successors or assigns within 30
354 days after receipt by the city.The city's administrative charge for each collection is set forth in MMC
355 14.07.005.
356 (8)At the termination ofthe I5-year recovery period the lien shall continue,but all collections
357 thereafter shall be for the benefit ofthe city and shall be deposited in the city's utility fund.
358 (9)Nothing in this section,nor any provision in a recovery contract,shall be construed as establishing
359 the city as a public utility in areas not already connected to the city's utility system;nor shall this section,
360 or any recovery contract,be construed as establishing express or implied rights for any property owner to
361 connect to the city's utility system without first qualifying for such connection by compliance with all
362 applicable city codes and ordinances.(Ord.2780 §1,2009;Ord.2106 §18,1996;Ord.1599,1988;Ord.
363 1434,1985).
364
365 Chapter 14.09 WATER AND SEWER CONSERVATION MEASURES
366 Sections:
367 14.09.010 Declaration ofpurpose
368 14.09.020 Assistance offered by city to water customers
369 14.09.030 Economic incentives for existing customers
370 14.09.040 Economic incentives for new customers
371 14.09.050 Water use restrictions
372 14.09.060 Enforcement;penalties
373 14.09.010 Declaration of purpose.
374 The conservation and efficient use ofwater is found and declaredto be a public purpose ofhighest
375 priority.It will res:ult in preservation ofnatural resources,enhancement ofpublic health,safety and
Item 10 - 33
376 welfare,and a reduction in public costs for the construction ofenlarged water and sewer facilities.(Ord.
377 1807 §1,1990).
378 14.09.020 Assistance offered by city to water customers.
379 The city may offer the following types ofassistance to all utility customers ofthe city,whether located
380 inside or outside ofthe city limits:
381 (1)Providing written notice to customers at the time ofeach billing statement showing the amount of
382 water used at said customer's property during the corresponding billing period inthe preceding year.If
383 water consumption has increased by 125 percent or more,said notice may suggest that the customer
384 contact the city for a water use audit and that conservation measures be immediately implemented;
385 (2)Providing water use audits for any and all customers upon request.In the case ofhigh-volume users
386 the city may take the initiative to contact the customer and request an opportunity to conduct a water use
387 audit;
388 (3)Providing inspections ofcustomer premises,either directly or through one or more inspectors under
389 contract,to determine and inform the customer ofthe estimated cost ofpurchasing and installing
390 conservation fixtures,systems and equipment;
391 (4)Providing customers with a list ofbusinesses that sell and install conservation fixtures,systems and
392 equipment within or in close proximity to the service area ofthe city.Each ofsaid businesses shall have
393 requested to be included on the list and shall have the ability to provide the products in a workmanlike
394 mannerand in accordance with the prevailing standards ofthe industry;
395 (5)Arranging for the purchase and installation ofapproved conservation fixtures,systems and
396 equipment at the customer's cost.Provided,that the city may provide the following retrofit plumbing
397 devices,upon request,at no cost:low volume shower heads,toilet tank bags,faucet aerators,and leak
398 detection dye;and
399 (6)Providing economic incentives for voluntary installation ofconservation fixtures,systems and
400 equipment,as provided in MMC 14.09.030 and 14.09.040 below.(Ord.1807 §1,1990).
401 14.09.030 Economic incentives for existing customers.
402 Customers who,at their own cost,purchase and install approved water conservation fixtures,systems or
403 equipment on a voluntary basis when the same are not otherwise required by any code,rule or regulation,
404 shall be entitled to payment from the city in an amount equivalent to one-halfthe verified cost incurred by
405 the customer,up to a maximum of$50.00 per customer account.Applications for such economic
406 incentives shall be filed with the city clerkwithin 30 days after installation ofthe conservation fixtures,
407 systems or equipment.The installation shall be subject to inspection and approval by the city.Economic
408 incentives shall be on a one-time-only basis for each customer account,and shall only be paid ifthe
409 account is in a then-current status.Economic incentives shall not apply to fixtures,systems or equipment
410 used for commercial or industrial purposes.(Ord.1807 §1,1990).
411 14.09.040 Economic incentives for new customers.
Item 10 - 34
412 Property owners or contractors constructing new buildings which will be connected to the city's utility
413 system shall be entitled to the same economic incentives referred to in MMC 14.09.030 above if,at their
414 own cost,they purchase and install approved water conservation fixtures,systems or equipment on a
415 voluntary basis when the same are not otherwise required by any code, rule or regulation.(Ord.1807 §1,
416 1990).
417 14.09.050 Water use restrictions.
418 The following nonessential uses ofwater are prohibited on all properties connected to the city's water
419 system,whether inside or outside ofthe city limits:
420 (1)Washing sidewalks,walkways,driveways,parking lots,patios and other exterior paved areas by
421 direct hosing,except as may be necessary to properly dispose offlammahle or ofuef\vise dangerous
422 liquids or substanees or to pre'lent Of eliminate materials dangerous to the publie health and safety.,for
423 emergency fire fighting activities;
424
425 (2)Escape ofwaterthrough breaks or leaks within the customer's plumbing or private distribution
426 system for any period oftime beyond which such break or leak should·reasonably have.been discovered
427 and corrected.It shall be presumed that a period of48 hours after the customer discovers a leak or break,
428 or receives notice from the city ofsuch leak or break,whichever occurs first,is a reasonable time within
429 which to correct the same.
430 (3)Noncommercial washing ofprivately owned motor vehicles,trailers and boats,except from a bucket
431 or a hose equipped with a shut-offnozzle used for quick rinses and in areas where soapy water will not
432 runoffinto the stormwaterdrainage system.
433 (4)Lawn sprinkling and irrigation which allows water to run offor overspray the lawn area.Every
434 customer is deemed to have knowledge ofand control over his lawn sprinkling and irrigation at all times.
435 (5)Sprinkling and irrigation oflawns,ground cover or shrubbery between the hours of 10:00 a.m.and
436 4:00 p.m.,or on any day not authorized by the rotation schedule announced on an annual basis by the city.
437 (Ord.1807 §1,1990).
438 14.09.060 Enforcement;penalties.
439 Ifthe city determines that any customer is violating any provision ofthis chapter itshall notify said
440 customer,in writing,that the violation must be corrected or abated within a specified period oftime,the
441 length ofwhich shall be reasonably related to the circumstances ofthe particular violation'.Said notice
442 shall be mailed to the last known billing address for the customer.Ifthe customer fails to comply,or ifa
443 repeat violation occurs within the following six months,the city may implement one or more ofthe
444 following enforcement measures:
445 (1)The city may install a flow restrictor onthe customer'sservice line.The cost ofsaid device,together
446 with a reasonable installation charge,shall be added to the customer's water bill.At the conclusion ofthe
447 enforcement action the cost ofremoving the device shall be added to the customer's water bill.
Item 10 - 35
448 (2)The city may disconnect water service to the property.A fee of$50.00 shall be paid for
449 reconnection ofany service which has been disconnected pursuant to this section.
450 (3)Violations of,or failure to comply with,any provision ofthis chapter shall constitute a civil
451 infraction and any person found to have violated the same is punishable by a monetary penalty ofnot
452 more than $50.00 for each such violation.Each day that a violation continues shall constitute a new and
453 separate infraction.(Ord.1807 §1,1990).
454 (4)Enforcement ofthe provisions ofthis chapter shall be pursuant to M:MG-Title 4 MMC.
1 Chapter 14.15 ()N SITE ST()Rl\1 Wll...TER DRtYNAGE
2 C()DECONTROLLING STORMWATER RUNOFF FROM NEW
3 DEVELOPMENT,REDEVELOPMENT,AND CONSTRUCTION SITES
4 Sections:
5
6 14.15.010 Purpose
7
8 14.15.015 Storm water management manual adopted
9
10 14.15.020 Definitions
11
12 14.15.030 Applicability
13
14 14.15.040 Minimum requirement thresholds.
15
16 14.15.050 Minimum requirements.
17
18 14.15.060·~4afldatOI)rrequiremefttsfor·all draiflage improyemoffis
19 14.15.062 Low impact development (LID)-Alternative drainage standards
20
21 14.15.065 Contents ofa storm water site plan
22 14.15.066 Determining Construction Site Sediment Damage Potential
23
24 14.15.070 Development in critical flood,drainage and/or erosion areas
25
26 14.15.080 Establishment ofregional facilities
27
28 14.15.090 Fees
29
30 14.15.100 Construction standards and specifications
31
32 14.15.110 Review and approval ofplans
33
34 14.15.120 Inspections -Construction
35
36 14.15.130 Bonds and liability insurance required
Item 10 - 36
37
38 14.15.140 City assumption ofmaintenance
39
40 14.15.150 Retroactivity relating to city maintenance ofdrainage facilities
41
42 14.15.160 Maintenance ofdrainage facilities by owner
43
44 14 .15.165 }'4ainteftaftee ofdfaiftage swales afld di~eftes
45 14.15.170 Applicability to governmental.entities
46
47 14.15.175 Adjustments
48
49 14.15.180 Exceptions
50
51 14.15.185 Additional procedures and review
52
53 14.15.190 Enforcement
54
55 14.15.200 No special duty created
56
57 14.15.210 Severability
58
59 14.15.220 Appeals
60 14.15.010 Purpose.
61 The city council finds that this chapter is necessary to promote sound development policies and
62 construction procedures which respect the city's watercourses;to minimize water quality degradation and
63 control of sedimentation ofcreeks,streams,ponds,lakes,and other water bodies;to protect the life,
64 health,and property ofthe general public;to preserve and enhance the suitability ofwaters for contact
65 recreation and fish habitat;to preserve and enhance·the.aesthetic quality ofthe waters;to maintain and
66 protect valuable ground water quantities,locations,and flow patterns;to ensure the safety ofcity roads
67 and rights-of-way;and to decrease drainage-related damages to public and private property.(Ord.2476 §
68 2,2003).
69 14.15.015 Storm water management manual adopted.
70 The ~2005 State Department ofEcologyls Storm Water Management Manual for Western
71 Washington.1 as amended by this code,is hereby adopted as the city's minimum stormwater regulations
72 and as a technical reference manual and maintenance standard and is hereinafter referred to as the
73 "Stormwater Mffianual~(Ord.2476 §2,2003).
74 14.15.020 Definitions.
75 For the purpose ofthis chapter and other ehap~efsprovisionsin this title related to stormwatertha~may
76 ftO~have a defiftitiofts seetioft,certain terms,phrases,words and their derivatives shall be defined and
77 construed as specified in the Stormwater Manual and in this seetiofttitle.Words used in the singular
78 include the plural,and the plural the singular.The words "shall,""will"and~"must"are mandatory;the
Item 10 - 37
79 words "should"and "may"are permissive.When any definition in this ehaptertitle conflicts with
80 definitions in the StormwatermManual or any other ordinance ofthe city,that which provides more
81 environmental protection shall apply unless specifically provided otherwise in this ehaptertitle.
82 (1)"Adjustmeflf'meaflS a prajeet praflasal that has reeeived apflraYfZal as pravidiag substafltially
83 eqaiY;aleflt eflviraflmefltal prateetiafl'l/hile maifltaifliflg the abjeetives afsafety,fufletiafl,.afld faeility
84 maiflteflaflee based upaflsaufldeflgifleeriflg.
85 (~l)"Applicant"means any person who has applied for a development permit or approval.
86 (2)"Certified Erosion and Sediment Control Lead (CESCL)"-means an individual who has current
87 certification through an approved erosion and sediment control training program that meets the minimum
88 training standards established by the Department ofEcology (see BMP C160 in the Stormwater Manual).
89 A CESCL is knowledgeable in the principles and practices oferosion and sediment control.The CESCL
90 must have the skills to assess site conditions and construction activities·that could impact the quality of
91 stormwater and,the effectiveness oferosion and sediment control measures used to control the quality of
92 stormwater discharges.
93 (3)"Hasifl pIafl"meaBS a fllafl thatassesses,eY;aluates,aBd flroflases salutiaflsta·e~(istiflg afld patefltial
94 future impaets ta thebeflefieial uses af,afld the p~sieal,ehemieal,afld 19ialagieal praperties afv;aters af
95 the state 'ftxithifl a basia.*l\plaa shaald ifleludebut flat be limited ta reeommefldatiafls far:
96 (a)Storm '.vater requiremems :fer fle'.¥de'/elopmeat afld rede\telapmeflt;
97 Eb)Capital impraY{erneflt··~rojeets;
98 (e)Lafld use maBagemeflt thraugk idefltifieatioa afld proteetiofl oferitieal areas,eompreheflSi1{e laBd
99 ase afld traflsportatiafl fllafls,zoaiag regulatiofls,site de';elopmeflt stafldards,afld eoaservatiofl areas;
100 (d)Souree eOflttol aetivities ifleludiag publie edueatiaft aftd iflYf1olv:emem,aftdbusiftess flrograms;
101 (e)Otkertargeted storm v/ater ~rograms afld aetiY/ities,sueh as maiflteHaflee,iflspeetioHs,aBd
102 eflforeemeflt;
103 En }'40Hitoriftg;afld
104 (g)i\ft implemematioft sehedule aBd fuftdiftg strategy.
105 (4)"Hest maBagemeHt praetiees (B}'4Ps)"refers to flhysieal,struernral,aftdfor maflagerial praetiees,that
106 l.vflefl used siflgl)T or ifl eombiftatiofl,pre';em or reooee pollatiofl of,vater and hay;e been approved by the
107 engifteer.H}.4Ps inelade,but are not limited to,iflfiltration,retefltiaft afld/or detemion,biofilttation
108 faeilities,oflen ditehes v/ith eheek dams,filter febrie strips,oilty/ater separators,viet flonds,eonstrueted
109 v;etlands,erosion aHd sedimentatioft eomral,aHd other treatment/abatement faeilities.
110 (5)"Hiofiltration faeilit)T"means the simaltafleous proeesses offiltratiofl,absorption,aBd biologieal
111 uptake ofpollutants ift storm v/ater to take fllaee ,vfien runoffflov/s a\ler eftd through vegetated treatment
112 faeilities.
113 (Je)"Cityplanner"also means community development director.
Item 10 - 38
114 (7)"Clearing"means the destmetion aTld remoJral ofvegetation by manual,meeHanieal or eHemieal
115 methods.
116 (i%)-"Comprehensive drainage plan"means a detailed analysis adopted by the city which compares the
117 capabilities and needs for runoff accommodation due to various combinations ofdevelopment,land use,
118 structural and nonstructural management alternatives.The plan recommends the form,location,and
119 extent ofquantity and quality control measures which would satisfy legal constraints,water quality
120 standards and community standards and identifies the institutional and funding requirements for plan
121 implementation.
122 (9)"COlTlflutations"means ealeulations,ineluding eoeffieients and otHer pertinent data made to
123 determine tHe drainageplaTl \VitH flovlofvi,;ater given in subie feet per seeond (efs).
124 (10)"ConstfUetion storm v;ater pollution flrevention plan"or "eonstmetion S\l/PPP"means a plan that
125 ineludes a narratiJre,dra\vings,and details for deseribing eonstfUetion praetiees,stabili2:ationteeHniques,
126 and strueturalB~4Psthat are to be imfllemented topreJ;ent erosion aTld sedimentation,and eontrol otHer
127 pollmants at a eonstruetion site.
128 (++~)"Conveyance system"means the drainage facilities,both natural and manmade,which collect,
129 contain,.and provide for the flow ofsurface and storm water from the highest points·on the land down to a
130 receiving water.The natural elements ofthe conveyance system include swales and small drainage
131 courses,streams,rivers,lakes,and wetlands.The human-made elements ofthe conveyance system
132 include gutters,ditches,pipes,channels,and most retention/detention facilities.
133 (12)"Current eonditions"means tHe state,status,or eonditions (landuse,imfle01ious surfaees,
134 topography,soils,and sU:ffaee '.vater flov/s)present oftHe subjeet property at tHe time tHe analysis is
135 eondl:leted.
136 (13)"Cm and fill"means the proeess of earth mOJ/ing by exeavating part ofan area and using tHe
137 eJcew;ated material for adjaeentembankments or fill areas.
138 (.J4Q)"Department"means the public works or community development department ofthe city of
139 Marysville,as appropriate for capital or private development projects.
140 (15)"Design storm"means a rainfall (or other preeipitation)event or pattern of events for use in
141 analyzing and designing drainage faeilities,speeifying botH tHe return period in years and tHe duration in
142 ftel:lrs.:
143 (16)"Detention"means tHe release ofstorm 'Hater runofffrom the site at a slov/er rate tHan it is
144 eolleeted by the storm v/ater drainage system,tHe differenee being held in tetnporary storage.
145 (17)"Detention faeilit;r"means an aboJre or belo'll grolifld faeili-ty,BUeh as a poad or taBk,that
146 temporarily stores storm v/ater runoffand subsequently,releases it at a slov/er rate than it is eolleeted by
147 tHe drainage faeility system.There is little or no infiltration ofstored storm v/ater.
148 (18)"Developed eonditions"means tHe state,status,or eondition oftHe subjeet property at tHe time tHe
149 proposed projeet has been eompleted,\vhieh may inelude eJcisting buildings,impervious areas,and
150 tOpOgrapHy as is.
Item 10 - 39
151 (+91)"Developer"means the individual(s}or corporation(s)or governmental agency(ies)applying for
152 #le-permits or approvals.:.deseribed iB }.D.4G 14.15.030.
153 (20)"De\Teloi3meBt"meaas aft)r&rtifieial ehaage toproi3erty,iflelediflg bat aot limited to baildiflg or
154 other struetures,miBiBg,dredgiflg,filliflg,alllafld distuTbiBg aeti'.rities,eleaflag,gradiag,laBdse8:i3iBg,
155 paYiBg,eJfeayatioB,or drilliBg oi3eratioBs,aBy aetivity that requires a i3efffiit or ai3i3r01;al,iBeladiBg but
156 Bot limited to a baildiBg i3efffiit,gradiBg i3efffiit,shoreliBe sabstaBtialdeveloi3meBt i3efffiit,eOBditioBal use
157 pefffiit,UBelassified ase pefffiit,:noBiBg variaBee or reelassifieatioB,i3laBBed uBit develoi3meBt,
158 s-tlbdiYisiofl,short subdivisiofl,master plaB develoi3meB:t,buildiflgsite i31aB,or right of ¥{a)T use i3efffiit.
159 (21)"DeY;eloi3meBtal eo¥erage"meaBS all develoi3ed areas vlithiB the subjeeti3roi3erty iBeludiBg bat flOt
160 limited to rooftoi3s,driYeViays,eafi3orts,aeeessory baildiBgs,i3arkiBg areas,aBd any other impervioas
161 surfaees.DuriBg eOBstruetioB,"deTieloi3meBt eOTierage"iBelades the aboYfe iB additioB to the full eJfteBt of
162 aBy alteratiea ofpreYioaslyoeeHrriBg soils,slope,or T;egetatioB dae to gradiBg,temporary storage,aeeess
163 areas,or other short tefffi eaases.
164 (~~)"Director ofpublic works"or "director"means the director ofthe public works department or
165 his/her designee.
166 (9)"Discharge Stormwater Directly or Indirectly to the Marysville Small Municipal Separate Storm
167 Sewer System (MS4)"- A projectdischarges stormwater directly or indirectly to theMS4 if:
168 a)The drainage system installed is in right ofway or an area that will become right ofway after
169 construction and final site approval;
170 b)The drainage system installed will become publicly ownedafter.construction and final site
171 approval;
172 c)The drainage system installed is intended to overflow to a portion ofthe existing MS4 or public
173 right ofway;or
174 aid)The drainage system installed is intended to outfall into a portion ofthe existing MS4 or public
175 right ofway.
176 (23)"DraiBage area"meaBs the 1llatershed(aereage)eOBtribatiBg surfaee viater fUBofftoaBd iBeludiBg
177 the subjeet i3roi3erty.
178 (24)"DraiBage site"meaBS a geogF8:i3hieal area that serves a eommOBor eombined use iBeludiBg bat
179 Bot limitedto shoi3i3iBg malls aBd strii3S,eOBdomiaiums,8i3artmeB:teompleJ{es,effiee i3arks,aBd housiag
180 traets.lAJ;:site may inelade oBe or more i3areels aBrl/or iBelade OBeor more buildiBgs..See also
181 "DeTfeloi3meBt."
182 (~10)"Drainage system"or "StormDrainage System"or "Stormwater system"means the same as the
183 Stormwater Manual definition for "Stormwater drainage system."
184 system ofeolleetiBg,eOftYeyiBg,aBd StOriBg surfaee aBd stOfffi \¥ater ruBoff.Draieage faeilities shall
185 iflelude bat flOt be limited to all surfaee aBd stOfffi viater runoff eOflYeyaflee aBd eOfltaiflmeflt faeilities
186 iBeladiBg streams,i3ii3elifles,ehallfl:els,ditehes,sv+tamps,lakes,wetlaBds,elosed depressiofls,iflfiltratiofl
187 faeilities,reteBtionfdeteBtioB faeilities,erosionfsedimeBtatiofl eOfltrol faeilities,afld other draiflage
188 struetures afld ai3i3urteBaflees,both Batural aBd maBmade.
189 (26)"DraiBage treatmeBtfabatemem faeilities"meaBS aBy faeilities iBstalled or eOBstrueted iB
190 eonjUBetioa viith a draiBage i3laB for the i3UflJose oftreatiBg urbaB FUBoffto impro''le viater quality,
191 eJfeludiBg reteBtioB or deteBtioB faeilities.
Item 10 - 40
192 (27)"Bffeetiye impervious Mea"ffieaftS tkose impervious surfaees tkat Me eOBBeeted Ilia skeet flow or
193 diserete eOBYeyaBee to a draiBage system.
194 (~ll)"Engineer"means the city engineer or development services manager,as designated for
195 enforcement ofcapital or private development activities,ofMarysville.
196 (;:+12)"Existing grade"means the grade prior to grading.
197 (~13)"Finish grade"means the final grade ofthe site,which conforms to the approved plan.
198 (~14)"Grading"or "gradingactivity"means any excavating,filling,or grading or combination
199 thereof.
200 (4+15)"Ground water"means water in a saturated zone or stratum beneath the surface ofland or a
201 surface water body.
202 (16)"Municipal Separate Storm Sewer System (MS4)"-meansa conveyance,or system of
203 conveyances (including roads with drainage systems,municipal streets,catch basins,curbs,gutters,
204 ditches,manmade channels,or storm drains):
205 a)Owned or operated by a state,city,town,borough,county,parish,district,association,or other
206 public body (created by or pursuant to State·Law)having jurisdiction overdisposal ofwastes,
207 stonnwater,or other wastes,including special districts under State law such asa sewer district,
208 flood control district or drainage district,or similar entity,or an Indian tribe or an authorized
209 Indian tribal organization,or a designated and approved management agency under section 208 of
210 the CWA that discharges to waters ofthe United States.
211 b)Designed·or used for··collecting or conveying stormwater.
212 c)Which is not a combined sewer;and
213 ajd)Which is not part ofa Publicly Owned Treatment Works (POTW)as defined in the Code of
214 Federal Regulations-at 40 CFR 122.2.
215 (3g)"Rougk grade"meaBS tke stage at\Vfl:i6k tke grade aj)pro~{imatelyeOBforms to tke appro¥ed plaB.
216 (42)"Illieit disekarge"meaBS all BOB storm \vater disekarges to storm viater draiBage systems tkat
217 eause or eOBtributeto aIytiolatioB ofstate'yTfater quality,sedimeBt quality,or groUBd \vater quality
218 staNdards,iBeludiBg butflot limited to saBitarysevfer eOBBeetioBs,iBdustrial proeess viater,iBterior floor
219 draiBS,ear viaskiBg,aBd gray\vater systems.
220 (43)"Imperyious areas"meafts tkat kard surfuee Mea vffiiek eitker pre¥eBts or retMds tke eBtry ofvfater
221 iBto·tke soil·.maBtle aBafOr eauses \vater to rUB offtke surfaee iB greater quantities or at aft iBereased rate
222 offlo\v from tkat preseBt uBder Batural eOBditioBsprior to de¥elopmeBt.GommOB imper¥ious surfuees
223 iBelude,but are Bot limitedto,rooftops,vfalk:vi'ays,patios,driye1yTiays,parkiBg lots or storage Meas,
224 eOflerete or asplTak p8:l/iflg,gra1ytel roads,paeked earthefl materials,aftd oil,maeadam,·or other surfaees
225 vikiek.similarly impede the Batural iBfiltratiofl ofsurfaee aftd storm vft&t:erfUfloff.OpeB,uBeoyered
226 reteBtionldeteBtioB fueilities skall Bot be eOBsidered as imperyious surfaees for tke purposes oftkis
227 ekapter.
228 (44)"Iflterflovi"means that pOrtiOR ofraiRfall that iBfiltrates iato the soil aftd mo¥es laterally through
229 tke upper soil hori23oBs uBtil iBtereepted by a stream ehaBBel or uBtil it remms totke surfaee for e~{ample,
230 iR a roadside diteh,vietlaftd,SpriBg or seep.
Item 10 - 41
231 (4S)"Land cleariag"or "cleariag"meaas file destructioa or remo¥alofYiegetatioa from a site ay
232 physical,mechaftical,chemiciH or ofiler meafts.This does aot meaft movliag,l8ftdscape maiateflaftCe or
233 pfUfliag coasisteflt vlith acceptedhorticulmral aad arboricultural practices,vlflich does flOt impair the
234 health or survival ofthe trees afld associated,Tegetatioa.
235 (46)"Laad disturbiag activities"meafts aHjT activity that disturbs or alters laftd surface iacludiag
236 cleariflg aad gradiag.
237 (47)"LOlli'est floor"meafts file lo,vest eflclosed area (iflcludiag basement)ofa structure.lA.d1 area used
238 solely for parkiflgofYlehicles,buildiflg access,or storage is flOt coasidereda building's 10Twzest floor;
239 provided,filat the enclosed area meets all offile strucmral requirements ofthe flood ha~ard standards.
240 (4 8)"~4anual"refers to the J,Vashington Department ofEcology's "Storm ','Tater ~4anagement ~4aftual
241 :for Westem Vlashingtoa,"as ameflded.
242 (49)"}Olative Y;egetatioa"meafts vegetation comprised ofplaftt species,other thannoJ£ious v/eeds,that
243 are indigeaous to the coastal region ofthe Pacific }OlortlY;;estand vi'hich reasonably could have beea
244 eJ£pected to aaturally SCCUlon the site.EJ£amplesinclude trees such as Douglas fir,,vestem hemlock,
245 'Yvestem red cedar,alder,big leafmaple,and vine maple;·shrtlbs such as vtillov/,elderbefI)\salmonberry,
246 afld salal;and heraaceous plaftts such as sV/ord rom,foam flov/er,aftdfirev/eed.
247 (50)"}olaturallocation"ofdraiaage systems refers to the location ofthose chaflflels,s,vales,aftd other
248 natural·eoaveyance systems as defined·b)T the first documented topographic contours eJdsting for the
249 subject propert)\either from maps or photographs,or such other meafts as appropriate.
250 (51)"}Olevi development"means the follovling actiYiities:land disturbing activities;structural
251 deY;elopmeflt,including construction,installation,or eJ£pansion ofbuilding or other structures;installation
252 ofimpervious surfaces,and subdivisions or short plats.
_253 (52)"On site storm ,vater management B~4Ps"meaftS site deYielopment techniques that senze to
254 infiltrate,disperse,aftd retain storm ,vaterrunoffon site.
255 (£17)"Parcel"means a tract or plot ofland ofany size,which mayor may not be subdivided or
256 improved.
257 (54)"Permaftent erosion and sediment control"means the continuous on site aftd off site control
258 measures that are needed to preTlent accelerated erosion,sedimentation or related pollution from occurring
259 after completion ofthe grading actiYlity or the construction project.
260 (55)"Permaftent storm viater control (PSC)plan"means a plan v/hich includes permanent B~4Ps for the
261 control ofpollution from stormv/ater runoffafter construction and/or land dismrbing activit)T has been
262 completed.
263 (56)"Person"means afty individual,partnership,corporatiofl,associatioa,orgafti~ation,cooperative,
264 public or municipal corporation,agency ofthe state,or local gOYiemment unit,hovi'eT;er desigBated.
265 (~18)"Planned residential developments"refers to residential developments which are planned and/or
266 developed in several stages but submitted together for approvals,and which typically consist ofclusters
267 of structures interspersed with areas ofcommon open spaces (refer to Chapter 19.48 MMC).
Item 10 - 42
268 (58)"Pollutant"shall mean aHjl substance villich,'yly41en added to '.vatef,v/ould contaminate or alter the
269 chemical,physical,or biological properties ofany \vaters ofthe city's drainage s~zstem or ofthe state.
270 This includes a change in temperatare,taste,color,turbidit~r,Of OdOf ofthe '.vaters,Of such discharge of
271 any liquid,gaseous,solid,mdioacti're,or other substance into any vlaters.ofthe city's drainage system or
272 ofthe state as v/ill or is likely to cfeate a nuisance.It also includes any substance vf41ich renders such
273 vraters harmful,detrimental,or iRjuriousto the public health,safety,or vlelfare,or to domestic,
274 commercial,industrial,agricultural,recreational,or other legitimate beneficial use,or to li1restock,vlild
275 animals,birds,fish,or other aquatic life.',
276 (59)"Pollution"means contaminatien or ether alteratien efthepftysical,chemical er bielogical
277 preperties efv/aters efthe state,inclueing change in temperature,taste,celor,turbidity,er oder efthe
278 '.vaters,er such discharge ofany liquid,gaseous,solid,radieactive er ether substance inte any v/aters ef
279 the .state and l.vill er is likely to create a nuisancesr render such 'Haters harmful,detrimental er iajurious
280 te the public health,safety er v/elfare,or te domestic,cemmercial,industrial,agricultur&l,recreatien er
281 other legitimate beneficial uses,erte livestock,v/ild animals,birds,fish,er ether aquatic life.
282 (60)"Pollutien generating impervieus surface (PGIS)"means those impePlieus surfaces censidered te
283 be a significant source efpellutants in sterm vrater runoff.Sueh surfaces include tl1ese '.vhich are subject
284 to:'rehicular use;industrial activities;er storage oferedible er leachable materials,'Hastes,orehemicals,
285 and v/hich recei're direct rainfall or the fUf1 onef blevl in efraiafall.Erodible or.leachable materials,
286 wastes,or chemicals are these substances vf41ich,\¥hen expesed te rainfall,measurably alter the physical
287 er chemical characteristics efthe minfall runeff.EJfamples include eredible seils thatara steckpiled,
288 unce1flered process '.Tfastes,manUfe,fertilizers,eily substances,ashes,kiln dust,and garbage dumpster
289 leakage.}.4;etals reefsare alse censidered to be PGIS unless they are ceated v/ith an inert,nonleachable
290 material (e.g.,baked on enamel coating).
291 lAj>sUffaco,'.¥hether paved or net,shall be considered subj ect to vehicular use ifit is regularly used by
292 meter 'rehictes.The follovring are considered regularly used surfaces:roads,unv~egetatedroad shoulders,
293 bike lanes v/ithin the traveled lane ofa roadv/ay,dri'levrays,parlcing lots,unfenced fire lanes,vehicular
294 equipment storage yards,and airport run\vays.
295 The follo'l;ing are net considered regularly used surfaces:pa1fzed bicycle patWlrayS separated from and
296 not subject to drainage from roads for motor vehicles,fenced .fire lanes,and infrequently l:lsed
297 maintenance access roads.
298 (61)"Pollution generating pervious sUfface (PGPS)"means any nonimpervious surface subject to use
299 ofpesticides,fertilizers,or loss ofsoil.
300 (~19)"Private drainage system"or "private stormwater disposal systems"means drainage systems
301 located on private property flflfI-that mayor may not designed to discharge directly as through pipes,
302 channels,etc.,or indirectly as sheet flow,subsurface flow,etc.,into the city's drainage system.
303 (63)"Project site"means that portion ofa property,properties,or right of \vay subject to land
304 disturbing activities,nevI impervious surfaces,or replaced impervious surfaces.
305 (M.20)"Public storm drainage system"means that portion ofthe drainage system ofthe city located on
306 public right-of-way,easements or other property owned by the city:.,and those portions ofprivate
307 drainage systems operated and maintained by the city.
Item 10 - 43
308 (65)"ReeeiyiBg waters"meaBB bodies ofv/ater orsurfaee l.vater systems reeeiviR-g v/ater from \i13stream
309 maBmade (or Batural)systems.Par the fH:lrpose ofthis ehapter,reeei'liBg ,vaters are Bhey 810l:lgh aBd the
310 8Bohomish Riller.
311 (66)"RedelftelopmeBt"meaBs,OB aB already de¥eloped site,the ereatioB aBdior additiofl ofimperviol:ls
312 sl:lffaees,struetuFaI del/elopmeBt iBell:ldiflg eOflstruetiofl,iflstallatioB,or expaBsioB ofa bl:lildiBg or other
313 struetl:lre,aBd/or replaeemeflt ofimperviol:ls BUrraee that is Bot 198ft ofa rOl:ltiBemaiflteflaflee aeti'/ity,afld
314 laBd disturbiflg aetiYities assoeiated v/ith struetural orimperviol:ls redel/elo19meflt.
315 (67)"RegioBal"meaBS aB aetioB that iBYoI'leS more thaB efle diserete pareel.
316 (68)"RegioBal deteatiofl faeility"meaBS a stonn v/ater quafltity eOBtrol strueturedesigaed to eorreet
317 e~(istiflg sl:lffaee vlater fUfloff problems for all·or a POrtiOB ofa basiB or sub basiB.This tenn is also l:lsed
318 viheB a deteatioB faeility is used to detaiB stonn vlater fUBoff from a fllHllber ofdiffereflt busiBesses,
319 deYfZelopmeflts or·areas vtithifl a eatehmeflt.
320 (69)"Re19laeed impervious sl:lffaee"meaflS theremoyal afld replaeemeat ofaflY e~(terior impervious
321 sl:lrfaees or fouBdatiofl ofa strueture.Other imperviol:ls sl:lrfases are sOBsidered replaeed iffirst remoy/ed
322 dOI.VB to bare soil orbaseeol:lfse.
323 (70)"Retefltion/detefltioB fasility (RiD)"meaflS a type ofdraiBage system desigaed either to hold Vtttlter
324 for a eOflsiderable leflgth oftimeaBdthefl release it by eYraporatiofl,plaBt traflspiratiofl aHd/or iBfiltratiofl
325 ifltO the grol:lBd;or to hold surfaee aBd stonn vlater fUflofffor short period oftime aBd theft release itto
326 the sl:lffase afld stonn.vrater maBagemeftt system.
327 (71)"8edimeBt"meaflS solid partieulate matter,both mifleml aBd orgaBie,that has beefl or is beiBg
328 traflsported by l.vater,air,grallity,or ise from its origiflal site ofOrigiB.
329 (72)"8edimeatatioa"meaas the proeessby vihieh sedimeBfhas beea traflSfJorted offthe site ofthe
330 gradiflg astivity afld settled oato lafld or the bed ofa ereek,stream,river,vletland,pond,or other \vater
331 ~
332 (73)"8ite"meaBS the area defifled by the legal boufldaries ofa pareel or pareels oflaBd subjeet to aeVI
333 developmeBt or redeYftelopmeBt.Por road projests,the leBgth ofthe.projeet·site.afld the right ofv/ay
334 booodaries defifte the site.
335 (+&21)"Rough grade"means the stage at which the grade approximately conforms to the approved
336 plan.
337 )"8ol:lfee eoatrol B~{P"meaBS a strustl:lfe or operatiofl that is iateBded to preY/eBt pollutants from eomiBg
338 iBtO eoBtast ,vith stonn v/ater through physisal separatioB ofareas or eareful maflagemeBt ofaetillities
339 that are sourees ofpolh:ltaflts.l'i:fevi e~(amples ofsouree soatrol B~4Ps are erosiofl sontrol praetiees,
340 maiflteflaflee ofstonn vlater faeilities,sOflstruetiflg roofs Oller storage afld ,vorkiag areas,afld direetiflg
341 \vash v/ater afld similar dissharges to the saflitary sevier or a dead efld sump.
342 (78)"8tonn draiflage plafl"meaas a plaa approved by the eity of~4af)TsY/illevlhieh iaell:ldes either a
343 small pareel orlarge pareel erosioa aad sedimeat soatrol plafl afldlor a \vater quality soatrol plan.s
Item 10 - 44
344 (22)"Site plan"means a plan which indicates the character ofthe existing site,topography,natural
345 drainage features on or adjacentto the site,the location and dimensions ofall impervious surfaces,flow
346 arrows indicating the direction ofstorm water flows on-site,and any off-site flows entering the site,the
347 proposed method ofutilizing the existing drainage system.
348 (23)"Small Municipal Separate Storm Sewer System"or "Small MS4"means a conveyance or system
349 ofconveyances including roads with drainage systems,municipal streets,catch basins,curbs,gutters,
350 ditches,man-made channels and/or storm drains which is:
351 a)Owned or operated by a city,town,county,district,association or other public body created
352 pursuant to State law having jurisdiction over disposal ofsewage,industrial wastes,stormwater,
353 or other wastes,including special districts under State law such as a sewer districts,flood control
354 districts ordrainage districts,or similar entity.
355 b)Designed or used for collecting or conveying stormwater.
356 c)Not a combined sewer system,
357 d)Not part ofa Publicly Owned Treatment Works (POTW)as defined at 40 CFR 122.2.
358 e)Not defined as "large"or "medium"pursuant to 40 CFR 122.26(b)(4)&(7)or designated under
359 40 CFR 122.26 (a)(1)(v).
360
361 Small MS4s include systems similar to separate storm sewer systems in municipalities such as:
362 universities,large publicly owned hospitals,prison complexes,highways and other thoroughfares.
363 Small MS4s do not include storm drain systems operated by non-governmental entities such as:
364 individual buildings,private schools,private colleges,private universities,and industrial and commercial
365 entities.
366 (79)"Storm water"meaas that portion ofpreeipitation that does not natllrally pereolate iato the grouad
367 or e1;aporate,but flo\vs via o1;erland flOV/,interflov/,pipes,or otherfeatures ofa storm lyvater draiaage
368 system iato a defiaed surfaee vlaterbody ora eoastrueted infiltration faeility.
369 (80)"Storm \llater ~4aaagement~4anual for V/estem V/ashiagtoa"means the manual prepared by the
370 Departmeat ofBeology that eontaias B~4Ps to prevent orreduee pollution.
371 (8+24)"Storm water site plan"means the comprehensive report containing all ofthe technical
372 information and analysis necessary to evaluate a proposed new development or redevelopment project for
373 compliance with storm water requirements.Contents ofthe storm water site plan will vary with the type
374 and size ofthe project,and individual site characteristics.It iaeludes a eonstruetioa storm viater pollution
375 preveatioa plaa (eoastmetioa SJ}/PPP)aad a permaaeat storm v{ater eontrol plan (PSG plaa).See the
376 Stormwater Manual for details.
377 (~25)"Subject property"means the tract ofland which is the subject ofthe permit and/or approval
378 action.
379 (83)"Surfaee v/ater"meaas the aaturally oeeurring v/ater that flOVfS o1;er or is stored on the earth's
380 SUTfaee.
381 (84)"Temporary erosioa eontrol"meaas the on site and off site eontrol meaSUTes that are needed
382 during eoastruetioa aetivities to prevent aeeelerat:ed erosion,sedimeatation or related pollutioa from
383 oeeurring,but may aot be needed vlhea the projeet is eompleted or Vihea grouad eoaditioas have beea
384 stahiliZ1ed by permaaent erosion eontrol measures.
Item 10 - 45
385 (85)"ThFesflold diseharge area"means an on site area draiBing to a single natural diseharge loeation or
386 multiple natural diseharge loeations that eombine \vithin one quarter mile dovrnstream (as determined by
387 the shortest flovl13ath).
388 (86)"Total m:aJfimum dail)T lead (T}'4DL)"meaflS a ealeulation ofthe maJiimum amoaat ofa pollutant
389 that a vlatefbody ean reeeilre and still meet vlater quality standards,and an alloeation ofthat amoUDt to the
390 pollutant's sourees.
391 (-8+26)"Undeveloped conditions"means the state,status,or condition ofthe subject property prior to
392 any development ofthe property that has occurred,which may include trees,pastures,meadows,or native
393 features.
394 (88)"UH:eontaminated"means vrater that has not eomeinto eontaet v/ith illieitdiseharges.
395 (89)"'}latefbody"means surfaee 'Naters ineluding rivers,streams,lakes,marine \,taters,esttiaries and
396 \vetlands.
397 (90)"'.llater quality eontrol plan (\VQCP)"meaBs a plan 'nhieh ifteludes permafteftt B}.4Ps for the
398 eontrol ofpollution from storm lyvater runoffafter eonstruetion and/or land disturbing aetiYity has beeft
399 eompleted.
400 (91)"Vlater qualit)T desiga flOVI rate"means:
401 (a)Preeeding detention faeilities or \vhen detentioft faeilities are ftot required:that rate at or belovr
402 vihieh 91 pereent ofthe runoff volume,as estimated by an appro1ledeontinuousrunoffmodel,vlill be
403 treated.
404 (b)Dovrnstream ofdetention faeilities:the full tVrO )tear release rate from the detentioft faeility .
405 (92)"JA'ater quality desiga storm"means the 24 hour raiftfall amount v/ith a Silt mOBth return
406 frequeney.It is eommonl)T referred to as the six month,24 hour desiga storm.
407 (93)"J}later quality desiga storm volume"meafts the l/olume ofrunoffpredieted from a 24 hour storm
408 \vith a silt month return frequeney.
409 (94)."Watershed".means a geographie region vrithifl vlhieh v/ater drains into a partieular ri'ler,stream,
410 or body ofy/ater asiaSfltifiea and numberea by the State ofJA'ashiftgtoft JA'ater Resouree IwiefttoI)'l'\reas
411 (J}lRIf.ts)as defined ift Chapter 173 500 J}lAC or sueeeeding regulation.
412 (95)"Wetland"or"vl:etlands"means areas that are iflUfldated or sattirated by surfaee vlater or grouftd
413 'Hater at a frequeftey and duration suffieient to support and that UDder ftormal eireumstanees do support,a
414 prevaleBee ofvegetatioft tYiJieall)T adaptea for life in saturated soileoftaitions."Wetlanas"gefterally
415 iftelude SVlamps,marshes,bogs,aBd similar areas."J}{etlands"do ftot iBelude those artifieial'yvetlands
416 intentionallyereated from ftoftv:etlaBa sites,ifteluding,but not limited to,irrigatiofl ana draiftage ditehes,
417 grass liBeds'yvales,eaBals,detefttion faeilities,vfflsteyltlter treatment faeilities,fann pOflds,aBd laftdseape
418 amenities.HOll:eyer,"Yletlands"inelude those artifieial v/etlands intentionally ereated to mitigate
419 eOftYersion ofvttetlands.See the Federal }.4anual fur Idefltitying ana Delineatiflg Jurisdietioftal ¥letlands
420 (January,1987)for more information.(Ord.2476 §2,2003).
Item 10 - 46
421 14.15.030 Applicability.
422 (1)Stormwater Management review and approval by the City is required when any new development,
423 redevelopment,or proposed construction site project meets or exceeds the threshold conditions defined in
424 section 14.15.040 (e.g.,newimpervious area,drainage system modifications,redevelopments,etc.)and/or
425 is subject to a City development permit or approval requirement.All the provisions ofthis Title are
426 applicable to any project requiring Stormwater Management review and approval.
427 (1)l\:ll persofls takiflg aflY oftae folloJyl/iflg aetiofls or applyiflgforafl}l ofilie follov/iflgpermitsaad/or
428 appro;rlals saall,ufllessotaef\Yiseel(eepted orel(empted by otller pro;rlisiOflS oftais ellapter,be reEillired to
429 submit for appro;r;al a site plafl v/ita taeir applieatiofl afld/or request:
430 (a)Creatiofl or alteratiofloffleInTor additioflal impervious surfaees;
432 (e)Redevelopmeflt;
433 (d)Buildiflg permit;
434 (e)Subdi;rlisiOfl approval;
435 (n Saort subdivisiofl approval;
436 (g)Cammereial,ifldustrial,or multifamil}T site plaa approval;
437 (a}Plaflfled Uflit de'relopmeflt;
438 (i)Developmeflt v:itaifl or adjaeeflt to seflsiti;rre areas per Cllapter ~D.4C;
439 0)COflditioflal·use permits;
440 (k)Substafltial developmefltpermit reEluired ooder Caapter 90.58 RCW (Saorelifle~4aflagemefltP.cet);
441 (1)Loggiflg,eleariflg,afld otaer lafld disturbiflg aeti;rlities.El(eeptiofl:l\etivities flOt reEluiriflg maeaiflery
442 for eOflstruetiofl or el(eavatiofl and taat are flOt subjeet·to otfter efl;rliroflffiefltal regulatiofl are eOflsidered
443 el(empt fFom tae pro;rlisiOflS ofiliis eaapter.IH:additiofl to a site plafl,otaer plaa reEluiremeflts are set out
444 ifl tae tel(t oftais eaapter afld aTe surnmarined for 'larious t}rpes ofaetivities ifl ~~4C ..
445 (2)Commencement ofconstruction work under any ofthe nonexempt actions,permits,or applications
446 set fortll ifl subseetiofl (1)oftais seetioflshall not begin until the department approves a Sstorm-water
447 £fK)llutionfl~revention~fllan(SWPPP)pursuant tothe requirements of section 14.15.040.
448 .El(eeptiofl:P.c site plaa oflly,aadflO storm vftffier pollutiofl pre;rlefltiofl,sllall be reEluired for aetiflities Ofl
449 siegle family lotsifl subdi;rnsiofls wllere tHe final plat for tae subdi;rlision oeeurred after ~4ay 1,1999.
450 (3)Guidaflee Ofl prepariflg a storm v/ater pollutiofl pre;r;efltiofl plaa_is eofltaifled ifl tIle ffiaflual.
Item 10 - 47
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
(4J)Whenever a minimum area or quantity requirement is set forth in this chapter,such requirement
shall be met ifany activity or development occurs on the subject property within a continuous 18-month
period.(Ord.2476 §2,2003).
(4)Unless otherwise specified in this chapter,all standards,definitions,and requirements shall be in
accordance with the Stormwater Manual.
(5)The following activities are exempt from the Minimum Requirements set forth in section 14.15.050;
a)Forest practices:Forest practices regulated under Title 222 WAC,except for Class IV
General forest practices that are conversions from timber land to other uses,are exempt from
the provisions ofthe Minimum Requirements.
b)Commercial agriculture:Commercial agriculture practices involving working the land for
production are generally exempt.However,the conversion from timberland to agriculture,
and the construction ofimpervious surfaces are not exempt.
c)Oil and Gas Field Activities or Operations:Construction ofdrilling sites,waste management
pits,and access roads,as well as construction oftransportation and treatment infrastructure
such as pipelines natural gas treatment plants,natural gas pipeline compressor stations,and
crude oil pumping stations are exempt.Operators are encouraged to implement and maintain
Best Management Practices to minimize erosion and control sediment during and after
construction activities to help ensure protection of surface water quality during storm events.
d)Road Maintenance:
1.The following road maintenance practices are exempt:pothole and square cut
patching,overlaying existing asphalt or concrete pavement with asphalt or concrete
without expanding the area ofcoverage,shoulder grading,reshaping/regrading
drainage systems,crack sealing,resurfacing with in-kind material without expanding
the road prism,and vegetation maintenance.
ii.The following road maintenance practices are considered redevelopment,and
therefore are not categorically exempt.The extent to which the Minimum
Requirements in section 14.15.050 apply is explained for each circumstance.
A.Removing and replacing a paved surface to base course or lower,or repairing the
roadway base:Ifimpervious surfaces are not expanded,section 14.15.050
Minimum Requirements #1 -#5 apply.However,in most cases,only section
14.15.050 Minimum Requirement #2,Construction Stormwater Pollution
Prevention,will be germane.Where appropriate,project proponents are
encouraged to look for opportunities to use permeable and porous pavements.
B.Extending the pavement edge without increasing the size ofthe road prism,or
paving graveled shoulders:These are considered new impervious surfaces and
are subject to the Minimum Requirements in section 14.15.050 that are triggered
when the thresholds identified for redevelopment projects are met.
C.Resurfacing by upgrading from dirt to gravel,asphalt,or concrete;upgrading
from gravel to asphalt,or concrete;or upgrading from a bituminous surface
treatment ("chip seal")to asphalt or concrete:These are considered new
impervious surfaces and are subject to the Minimum Requirements in section
Item 10 - 48
501 14.15.050 that are triggered when the thresholds identified for redevelopment
502 projects are met.
503
504 e)Underground utility projects:Underground utility projects that replace the ground surface
505 with in-kind material or materials with.similar runoffcharacteristics are only subject to
506 section 14.15.050.2 Minimum Requirement #2,Construction Stormwater Pollution
507 Prevention.
508
509 14.15.040 Minimum requirement thresholds.
510
511 Notall ofthe Minimum Requirements in section 14.15.050 applyto every development or
512 redevelopment project.The applicability varies depending on the type and size ofthe project.This section
513 identifies thresholds that determine the applicability ofthe Minimum Requirements in section 14.15.050
514 to different projects.The flow charts in Figures 14.15.040(1)and 14.15.040(2)..must be used to determine
515 which ofthe Minimum Requirements in section 14.15.050 apply.The Minimum Requirements
516 themselves are presented in section 14.15.050.
517
518
519
Item 10 - 49
St~ll·t Hf.-t
Does the site have
35%ormore of
existing tmpelvlou$
covel·aae?
Does the project add
5,000 square feetor
mote ofnew
impelVious surfaces?
No
Does the project coavert%
acres ormore oEnltive
vecetation to lawn or
landscaped areas.or
convert 2.Sacra ormore
ofaativevege~onto
pasture?
See Redevelopment
Minimum
Requirements ana
flowChart-
Ficure 14 .•15.040(2)
A1lMinimum
Requiremet1ts apply to
tae aewimpervious
surfaces ana converted
pervious surfaces.
No
Doe$theprojetthave
2.000 square feet or
more ofRe~replaced,
or ae",plu.$r~placed
impervious swfaces?
No
520
See Minimum
Requiremen
Construction
Stotm.traterPollution
Prevention
Item 10 - 50
Do the new.replaced,otl1ewplusreplacedimp·etVionssurfaces tota12.DOO
square feet armore?
OR
Does the.tad di*rbing activity total 7,OOOsquwe feet o,rmore?
No 1
Mmimum Requiremeats through #5
'1 to Ihellew;m~,tepl~.impaviousurfacesandthe1.(1disttlm e4~
Apply Min-imumRequirera_#2
Consnction Stonnw8er Pollution
'Prell.lion
Does the'project add 5_000 square feet ormore 0f newimpervious surface?
OR
Convert%acres or more ofnative vegetsionto lawn.orlandscapedareas?
OR
Convert2.S acres or more ofnativevegetatiOftto pasture?
No 1
Minimum R.equirements ilthrof9
apply totheaew..,enrious sudaces and
the converted pervitlu,'turfares
Nflxt
(:1-'1"50011 ..fsthis ar8<ad.
~rel_dproject?Yy Ne
Doeslh,project add :S.OOO square feet ormore ofnewimperviou$..faces?f
Ne
lsthemta'ofthenewplusreplaced
irapervio\lS surfaces S1f'square feet or
m.ore,¢D d alue ofthe
,rolloleO improvanents.including
itt_norimprovements-exceed SoolO of
the ass.sledvl1ue (orreplacement value)
o:ftheexitbng site improvements?
No addition.
requirements
Do newim;pemous.surfaces atid 50%or
moreta theexi_;impcmous surfaces
within.thep,roject limits?
...1,.N.'O__\Y.s
No additional ~\
requimneats _....t--_~\--------'
Mit.imam Requirements i#lthroup#9
apply to rhenewln.drepl.aced
imprio8$surfaces
No ,.
521
522
523
Item 10 - 51
524 1)New Development.All new development shall be required to comply with section 14.15.050.2
525 Minimum Requirement #2.
526
527 a)The following new development shall comply with section 14.15.050 Minimum Requirements
528 #1 through #5 for the new and replaced impervious surfaces and the land disturbed:
529
530 i.Creates or adds 2,000 square feet,or greater,ofnew,replaced,or new plus replaced
531 impervious surface area,or
532
533 11.Has land disturbing activity of7,000 square feet or greater,
534
535 b)The following new development shall comply with section 14.15.050 Minimum Requirements
536 #1 through #10 for the new impervious surfaces and the converted pervious surfaces:
537
538 1.Creates or adds 5,000 square feet,or more,ofnew impervious surface area,or
539
540 11.Converts %acres,or more,ofnative vegetation to lawn or landscaped areas,or
541
542 111.Converts 2.5 acres,or more,ofnative vegetation to pasture.
543
544 2)Redevelopment.All redevelopment shall be required to comply with section 14.15.050.2
545 Minimum Requirement #2.Inaddition,all redevelopment that exceeds certainthresholds shall be
546 required to comply with additional Minimum Requirements in section 14.15.050 as follows.
547
548 a)The following redevelopment shall comply with section 14.15.050 Minimum Requirements
549 #1 through #5 for the new and replaced impervious surfaces and the land disturbed:
550
551 1.The new,replaced,or total ofnewplus replaced impervious surfaces is 2,000 square feet
552 ormore,or
553
554 11.7,000 square feet or more ofland disturbing activities.
555
556 b)The following redevelopment shall comply with section 14.15.050 Minimum Requirements
557 #1 through #10 for the new impervious surfaces and converted pervious areas:
558
559 1.Adds 5,000 square feet or more ofnew impervious surfaces or,
560
561 11.Converts %acres,or more,ofnative vegetation to lawn or landscaped areas,or
562
563 111.Converts 2.5 acres,or more,ofnative vegetation to pasture.
564
565 c)Ifthe mnofffrom the new impervious surfaces and converted pervious surfaces is not
566 separated from runofffrom other surfaces on the project site,the stormwater treatment
567 facilities must be sized for the entire flow that is directed to them.
568
569 d)The director may allow the Minimum Requirements in section 14.15.050 to be met for an
570 equivalent (flow and pollution characteristics)area within the same site.Forpublic roads'
571 projects,the equivalent area does not have to be within the project limits,but must drain to
572 the same receiving water.
Item 10 - 52
573
574 3)Additional Requirements for Re-development Project Sites
575
576 a)Forroad-related projects,runofffrom the replaced and new impervious surfaces (including
577 pavement,shoulders,curbs,and sidewalks)shall meet all the Minimum Requirements in
578 section 14.15.050 ifthe new impervious surfaces total 5,000 square feet or more and total
579 50%or more ofthe existing impervious surfaces within the project limits.The project limits
580 shall be defined by the length ofthe project and the width ofthe right-of-way.
581
582 b)Other types ofredevelopment projects shall comply with all the Minimum Requirements in
583 section 14.15.050 for the new and replaced impervious surfaces ifthe total ofnew plus
584 replaced impervious surfaces is 5,000 square feet or more,and the valuation ofproposed
585 improvements -including interior improvements -exceeds 50%ofthe assessed value ofthe
586 existing site improvements.
587
588 c)The director may exempt or institute a stop-loss provision for redevelopment projects from
589 compliance with Minimum Requirements for treatment,flow control,and wetlands
590 protection as applied to the replaced impervious surfaces ifthe director has adopted a plan
591 and a schedule that fulfills those requirements in regional facilities.See also Sections
592 14.15.175,14.15.180 and Chapter 14.18..
593
594 d)The director may grant avariance/exceptionto the application ofthe flow control
595 requirements to replaced impervious surfaces ifsuch ,application imposes a severe economic
596 hardship.See Section 14.15.175 and 14.15.180.
597
598 (1)}eteYll DeY/elopmeHt.The miHimum requiremeHts diseussed iH tHis seetioH are deseribed iH }.D.4C
599 It.lS.QSO.1\:11 Hew deY/elopmeHt shall be requireato eomply v/itH miHimumrequiremeHt flO.2.It1
600 additioH,He'll deY/elopmeHt that eJceeeds eertaiH tHresHolds shall be required to eomply v/itH additioHal
601 miHimum requiremeHts deseribed iH }.D.4C 14.15.050 as follov/s:
602 (a)THe follo'l/iHg He'll developmeHt sHall eomply 'l/itH miHimum requiremeHts HOS.1 through 5:
603 (i)Developmem that .iHeludes tHe ereatioH or additioH of2,000 square feet or greater ofHe'll,replaeed,
604 or HeVI plus replaeed impervious surfeee area;or
605 (ii)DevelopmeHt that ineludes laRd disturbiHg aetivity of7,000 square feet or greater.
606
607 (b)THe follov/iHg Hew developmeHt SHall eomply 'l/ith miHimum requiremeHts HOS.1 tHrougH 10.
608 (i)Creates or.adas 5,000 square feet or greater ofHe'll impef\Tious surrese area;or
609 (ii)COHverts tHree quarters aeres or more ofHativ:e 'fegetatioH to lav/H or laHaseapea areas;or
610 (iii)COHYferts 2.5 aeres ormore ofHative vegetatioH to pasture.
Item 10 - 53
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
(2)~~ae~lelofJmeflt.1\II·reaevelof'meflt saallbe reC:]:uireato oOfBply v/ita miflifBUffi reC:]:uifemeflt flO.2.Ifl
a~a~tIofl,reael/~lof'meflt taat e~{oeeasoertaifl thresholas saall be reC:]:uirea to oOfBply v/itH:aaaitioflal
mlflIfBum reC:]:uIremeflts aesoribea iB ~G.4G 14.15.050 as follo1liS:
~~The follewi~rede~el8f>mem shall eemflly witk ftliaifl'ffiHl requiremems aes.1 tkrougfi 5 fortke
fle.r aBa replaoea IfBpervlous sarfaoes aBa tae laBa aisturbea:
(i)Theflevi,ref'laoea,or total ofBe"v f'las ref'laoea itBpef'ilious surfaoes is 2,000 sC:]:u8re feet or
more;··or
(ii)ReOO1/elof'meBt taat iBoluaes laBa aisturbiBg aotivitjt of 7,000 sC:]:uare feet or more.
(a).The fo.llewiagrede¥el8f>meat skall eemflly witk ftliaifl'ffiHl requiremems aes.1 tkreugfi 1Q for the
Bel//Imper-Vloas sarmoes aBa oOB1fertea f'cP/ious sarfaees:
(iii)Reaevelof'meflt.that ooftverts2.5 aores or more offlati'le llegetatioft to f'asture.
(~·Ge~agled£tem Water.••IFtkefl:lft6fffrem the ftElW iHiflervieus suHaees Rild eawl'erted flerviaus
sur~e.es is aets6fl~edfFem fUftafffrem atker surfaees aa tke prejeet site,tke steffil 1Natel'treatHieft1:
faCIlItIes mast be SIZ!1ea for tae eatireflo11i taM is direotea to taem.
(~.EEIui¥a1eft1:.Area.The.d~e~er may ~lal=1'tke ftliaii'l'lllftirequiremems te be met for Ril equi¥aleft1:
(flaw Rild palMioa eaarae~e~sttes)are~WlUua tke same site.Fer ptlblie l'aad prejeets,tke eEIuWaleft1:
area aoes flOt aalfe to be '.VItH:IB tae f'rOjeot limits,bat fBl:lSt araiB to tae·same reoeiviftg "vater.
~~)Read Related Projeets.RUft~fffr~mtke replaeed Rild flS'N impervi()l:1s surfaees (meludiag
~trrem~Bt,saoulaers,oarbs,aBa slaeVialks)saall meet·all ilie miaifBl:lffireC:]:l:liremeflts iftae Be'll
~en:eus surfaees te!al.5,999 SEI~~et ar mere a+ld tetal59 pereeftt ar mere aftke mcistiag
im~erviaus surfa~es witlua tke pfOje~hftlits.Theprejeet liftlitsskallbe defifted by tke leagtli eftke
f'rOj cot·aBa tae vllata oftae right ofVier.
A~sessed¥alue Tkfe~ald~.Oth~r ~Yfles afde¥el8f>meftt aat regulated by sueseetiea (2)(e)eftlris
~eet1aa skalleeHiflly Wltk all tke 1l'llaifl'ffiHl reEIuiremeft1:s for the aetHa+ld replaeed imflerviaus SUffaees
ifthe tatal e~tke a6\TI'plus Fefllaeed imflefV'i()l:1S surfaees is 5,999 sEIuare feet er mere··Rild tke wluatiea
efflrefle~e~iHifl.re1:eB'leftts,iaeludiRg merier imflre¥em.ems,m£6eeds 59 pereem efthe assessed ¥a1ue
oftae e~{lstIf1gslte Improvemeflts.
(~Regieaal Faeili~ies.Th~dir~et.er may e*~mpter.iastitilie a step less pre¥isioa for rede1l'eleflmeft1:
f'rOj cots from oompllaace v/ita ffilBIfBUffi reql:lIremeflts fur treatmem,flo1.v comrol,aBa "vetlaBas
Item 10 - 54
645 proteetioft as applied to tke replaeed impervious surfaees iftke eity kas adopted a pl8:fl aad sekedule tkat
646 fulfillstkose retluiremeflts ia regioaal faeilities.(Ord.2476 §2,2003).
647 14.15.050 Minimum requirements.
648 This Section describes the Minimum Requirements for stormwater management at development and
649 redevelopment sites.Section 14.15.040 should be consulted to determine which ofthe Minimum
650 Requirements below apply to any given project.Figures 14.15.040(1)and 14.15.040(2)should be
651 consulted to determine whether the Minimum Requirements apply to new surfaces,replaced surfaces or
652 new and replaced surfaces.
653
654 1)Minimum Requirement #1:Preparation ofStormwater Site Plans.All projects meeting the
655 thresholds in Section 14.15.040 shall submit a Stormwater Site Plan.Stormwater Site Plans shall be
656 prepared in accordance with Chapter 3 ofVolume 1 ofthe Stormwater Manual.
657
658 2)Minimum Requirement #2:Construction Stormwater Pollution Prevention Plan (SWPPP)
659
660 a)The City may choose to allow compliance with this Minimum Requirement to be achieved for an
661 individual site ifthe site is covered under Ecology's General NPDES Permit for Stormwater
662 Discharges Associated with Construction Activities and fully implementing the requirements of
663 that permit.
664
665 b)The City may choose to allow site operators to apply an "Erosivity Waiver"to projects disturbing
666 less than five acres that meet the requirements in section1415.050.2(j);such projects would be
667 waived from the requirement that the City reviewsite plans for construction phase stormwater
668 pollution prevention.
669
670 c)The City may develop an abbreviated SWPPP format to meet the SWPPP requirement under the
671 NPDESPhaseII Municipal Stormwater permit for sitesthat are less than 5,000 square feet of
672 new impervious surface;or new,replaced,or new plus replaced is less than 2,000 square feet.
673
674 d)All new development and redevelopment projects are responsible for preventing erosion and
675 discharge ofsediment and other pollutants into receiving waters.All projects must submit a
676 Construction Stormwater Pollution Prevention Plan (SWPPP)as part ofthe Stormwater Site Plan
677 (see section 14.15.050.1 Minimum Requirement #1:Preparation of Stormwater Site Plans above)
678 for allprojects which meet the thresholds in Section 14.15.040.The SWPPP shall be
679 implemented beginning with initial soil disturbance and until final stabilization.
680
681 e)Sediment and Erosion control BMPs shall be consistent with the BMPs contained in chapters 3
682 and 4 ofVolume II ofthe Stormwater Manual,and/or other equivalent BMPs contained in
683 technical stormwater manuals approved by the Department ofEcology.
684
685 f)The SWPPP shall include a narrative and drawings.All BMPs shall be clearly referenced in the
686 narrative and marked on the drawings.The SWPPP narrative shall include documentation to
687 explain and justify the pollution prevention decisions made for the project.Clearing and grading
688 activities for developments shall be permitted only ifconducted pursuant to an approved site
689 development plan (e.g.,subdivision approval)that establishes permitted areas ofclearing,
690 grading,cutting,and filling.When establishing these permitted clearing and grading areas,
691 consideration should be given to minimizing removal ofexisting trees and minimizing
692 disturbance/compaction ofnative soils except as needed for building purposes.These permitted
693 clearing and grading areas and any other areas required to preserve critical or sensitive areas,
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buffers,native growth protection easements,or tree retention areas as may be required by Chapter
19.28 Clearing,Grading,Filling and Erosion Control or Chapter 19.24 Critical Areas
Management shall be delineated on the site plans and the development site.
g)Seasonal Work Limitations -From October 1.through April 30,clearing,grading,and other soil
disturbing activities are only authorized ifsilt-laden runoffwill be prevented from leaving the site
through a combination ofthe following:
i.Site conditions including existing vegetative coverage,slope,soil type and proximity to
receiving waters;and
ii.Limitations on activities and the extent ofdisturbed areas;and
111.Proposed erosion and sediment control measures.
h)Based on the information provided and/or local weather conditions,the director may expand or
restrict the seasonal limitation on site disturbance.The following activities are exempt from the
seasonal clearing and grading limitations:
1.Routine maintenance and necessary repair oferosion and sediment control BMPs,
11.Routine maintenance ofpublic facilities or existing utility structures that do not expose
the soil or result in the removal ofthe vegetative cover to soil,and
111.Activities where there is one hundred percentinfiltration ofsurface water runoffwithin
the·site in approved and installed erosion and sediment control facilities.
i)Construction Stormwater Pollution Prevention Plan (SWPPP)Elements-The construction site
operator shall include each ofthe twelve elements below in the·SWPPP and ensure that they are
implemented unless site conditions renderthe element unnecessary and the exemption from that
elementis clearly justified in the·SWPPP.The SWPPP shall include both narrative and drawings.
All BMPs shall be clearly referenced in the narrative and marked on the drawings.The SWPPP
narrative shall include documentation to explain and justify the pollution prevention decisions
made for the.project.
1.Element 1.Preserve VegetationlMark Clearing Limits:
A.Prior to beginning land disturbing activities,including clearing and grading,clearly mark
all clearing limits,sensitive areas andtheir buffers,and trees that are to be preserved
within the construction area.
B.Plastic,metal,or stake wire fencing may be used to markthe clearing limits.
C.The dufflayer,native top soil,and natural vegetation shall be retained in an undisturbed
state to the maximum degree practicable.
ii.Element 2.Establish Construction Access:
A.Construction vehicle access and exit shall be limited to one route,ifpossible.or two
routes for linear projects such as roadways where .more than one access is necessary for
large equipment maneuvering.
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B.Access points shall be·stabilized with quarry spalls,crushed rock or other equivalent
BMP to minimize the tracking ofsediment onto public roads.
C.Wheel wash or tire baths shall be located on site,ifthe stabilized constructions entrance
is not effective in preventing sediment from being tracked onto public roads.
D.If sediment is tracked offsite,roads shall be cleaned thoroughly at the end ofeach day,or
more frequently.duringwet weather.Sediment shall be removed from roads by shoveling
or pickup sweeping and shall be transported to a controlled sediment disposal area.
E.Street washing is allowed only after sediment is removed in accordance with Element
2.D,above.Street wash wastewater shall be controlled by pumping back on site or
otherwise be prevented from discharging into systems tributary to waters ofthe state.
iii.Element 3.Control Flow Rates:
A.Properties and waterways downstream from development sites shall be protected from
erosion due to increases in the velocity and peak volumetric flow rate ofstormwater
runofffromtheproiect site.
B.Downstream analysis.is required.See Chapter 3 ofthe Stormwater Manual for offsite
analysis guidance.
C.Where necessary to comply with Element 3A.,above,stormwaterretention or detention
facilities shall be constructed as one ofthe first steps in grading.Detention facilities shall
be functional prior to construction ofsite improvements (e.g.,impervious surfaces).
D.The director may require pond designs that provide additionalordifferent stormwater
flow control,ifnecessary to address local conditions or to protect properties and
waterways downstream from erosion due to increases in the volume,velocity,and peak
flow rate ofstormwater runofffrom the project site.
E.Ifpermanent infiltration ponds are used for flow control during construction,these
facilities should be protected from siltation during the construction phase.
iv.Element 4.Install Sediment Controls:
A.Stormwater runofffrom disturbed areas.shall pass through a sediment pond,or other
appropriate sediment removal BMP,prior to leaving a construction site or priorto
discharge to an infiltration facility.Runoff from fully stabilized areas may be discharged
without a sediment removal BMP,but shall meet the flow controlperformance standard
of3.a,above.
B.Sediment control BMPs (sediment ponds,traps,filters,etc.)shall be constructed as one
ofthe first steps in grading.These BMPs shall be functional before other land disturbing
activities take place.
C.BMPs intended to trap sediment on site shall be located in a manner to avoid interference
with the movement ofjuvenile salmonids attempting to enter off-channel areas or
drainages.
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v.Element 5.Stabilize Soils:
A.Exposed and unworked soils shall be stabilized by application ofeffective BMPs that
prevent erosion.
B.No soils should remain exposed and unworked for more than the time periods set forth
below to prevent erosion:
-During the dry season (May I -September 30):7 days
-During the wet season (October I -April 30):2 days
C.The time period may be adjusted by the director,ifthe director determines that local
precipitation data justify a different standard.
D.Soils shall be stabilized at the end ofthe shift before a holiday or weekend ifneeded
based on the weather forecast.
E.Soil stockpiles must be stabilized from erosion,protected with sediment trapping
measures,and where possible,be located away from storm drain inlets,waterways and
drainage channels.
F.Applicable practices include,but are not limited to,temporary and permanent seeding,
sodding,mulching,plastic covering,soil application ofpolyacrylamide (PAM),the early
application ofgravel base on areas to be paved,and dust control.
G.Soil stabilization measures selected should be appropriate for the time ofyear,site
conditions,estimated duration ofuse,and potential water quality impacts that
stabilization agents may have on downstream waters or groundwater.
H.Soil stockpiles must be stabilized from erosion,protected with sediment trapping
measures,and where possible,be located away from storm drain inlets,waterways and
drainage channels.
vi.Element 6.Protect Slopes:
A.Cut and fill slopes shall be designed and constructed in a manner thatwill minimize
erosion.
B.Soil type and its potential for erosion shall be considered.
C.Slope runoffvelocities shall be reduced by reducing the continuous length ofslope with
terracing and diversions,reduce slope steepness,and roughen slope surface.
D.Off-site stormwater (run-on)or groundwater shall be diverted away from slopes and
undisturbed areas with interceptor dikes,pipes and/or swales.Off-site stormwater should
be managed separately from stormwater generated on the site.
E.At the top ofslopes,drainage shall be collected in pipe slope drains,or channels shall be
protected to prevent erosion.Temporary pipe slope drains shall handle the expected peak
IO-minute flow velocity from a Type lA,IO-year,24-hour frequency storm for the
developed condition.Alternatively,the IO-year,I-hour flow rate predicted by an
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approved continuous runoffmodel,increased by a factor of 1.6,may be used.The
hydrologic analysis shall use the existing land cover condition for predicting flow rates
from tributary areas outside the project limits.For tributary areas on the project site,the
analysis shall use the temporary or permanent project land cover condition,whichever
will produce the highest flow rates.Ifusing the Western Washington Hydrology Model
to predict flows,bare soil areas should be modeled as "landscaped area."
F.Drainage shall be provided to remove ground water intersecting the slope surface of
exposed soil areas.
G.Excavated material shall be placed on the uphill side oftrenches,consistent with safety
and space considerations.
H.Check dams shall be placed at regular intervals within constructed channels that are cut
down a slope.
vii.Element 7.Protect Drain Inlets:
A.Storm drain inlets made operable during construction shall be protected so that
stormwater runoff does not enter the conveyance system without first being filtered or
treated to remove sediment.
B.All approach roads shall be kept clean.Allsediment and street wash water shall not be
allowed to enter storm drains without prior and adequate treatment unless treatment is
provided before the storm drain discharges to waters ofthe State.
C.Inlet protection devices shall be cleaned or removed and replaced when sediment has
filled one-third ofthe available storage (unless a different standard is specified by the
product manufacturer).
viii.Element 8.Stabilize Channels and Outlets:
A.All temporary on-site conveyance channels shall be designed,constructed,and stabilized
to prevent erosion from the following expected peak flows.Channels shall handle the
expected peak 10-minute flow velocity from a Type lA,10-year,24-hour frequency
storm for the developed condition.Alternatively,the 10-year,I-hour flow rate predicted
by an approved continuous runoffmodel,increased by a factor of1.6,may be used.The
hydrologic analysis shall use the existing land cover condition for predicting flow rates
from tributary areas outside the project limits.For tributary areas on the project site,the
analysis shall use the temporary or permanent project land cover condition,whichever
will produce the highest flow rates.Ifusing the Western Washington Hydrology Model
to predict flows,·bare soil areas should be modeled as "landscaped area."
B.Stabilization,including armoring material,adequate to prevent erosion ofoutlets,
adjacent stream banks,slopes,and downstream reaches shall be provided at the outlets of
all conveyance systems.
ix.Element 9.Control Pollutants:
A.All pollutants,including waste materials and demolition debris,that occur onsite shall be
handled and disposed ofin a manner that does not cause contamination ofstormwater.
Item 10 - 59
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B.Cover,containment,and protection from vandalism shall be provided for all chemicals,
liquid products,petroleum products,and other materials that have the potential to pose a
threat to human health or the environment.On-site fueling tanks shall include secondary
containment.
C.Maintenance,fueling and repair ofheavy equipment and vehicles shall be conducted
using spill prevention and control measures.Contaminated surfaces shallbe cleaned
immediately following any spill incident.
D.Wheel wash or tire bath wastewater shall be discharged to a separate on-site treatment
system or to the sanitary sewer with local sewer district approval.
E.Application offertilizers and pesticides shall be conducted in a manner and at application
rates that will not result in loss ofchemical to stormwater runoff.Manufacturers'label
requirements for application rates and procedures shall be·followed.
F.BMPs shall be used to prevent or treat contamination of stormwater runoffby pH
modifying sources.These sources include,but are not limited to:bulk cement,cement
kiln dust,fly ash,new concrete washing and curing waters,waste streams generated from
concrete grinding and sawing,exposed aggregate processes,dewatering concrete vaults,
concrete pumping and mixer washout waters.Construction site operators shall adjust the
pH ofstormwater ifnecessary to prevent violations ofwater quality standards.
G.Construction site operators shall obtain written approval from the Department ofEcology
prior to using chemical treatment other than C02 or dry ice to adjust pH.
x.Element 10.Control De-Watering:
A.Foundation,vault,and trench de-watering water,which have similar characteristics to
stormwater runoffat the site,shall be discharged into a controlled conveyance system
prior to discharge to a sediment trap or sediment pond.
B.Clean,non-turbid de-watering water,such as well-point ground water,can be discharged
to systems tributary to,or directly into surface waters ofthe state,as specified in section
14.15.050.2 Element 8.Stabilize Channels and Outlets,above,provided the de-watering
flow does not cause erosion or flooding ofreceiving waters.Clean de-watering water
should not be routed through stormwater sedimentponds.
C.Other de-watering disposal options may include:(i)infiltration;(ii)transport offsite in
vehicle,such as a vacuum flush truck,for legal disposal in a manner that does not pollute
state waters:(iii)on-site chemical treatment or other suitable treatment technologies
approved bythe director:(iv)sanitary sewer discharge with local sewer district approval,
ifthere is no other option:or (v)use ofa sedimentation bag with outfall to a ditch or
swale for small volumes oflocalized de-watering.
D.Highly turbid or contaminated dewatering ~ater shall be handled separately from
stormwater.
xi.Element 11.Maintain BMPs:
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A.All temporary and permanent erosion and sediment control BMPs shall be inspected,
maintained and repaired as needed to assure continued performance oftheir intended
function in accordance with BMP specifications.
B.All temporary erosion and sediment control BMPs shall be removed within 30 days after
final site stabilization is achieved or after the temporary BMPs are no longer needed.
Disturbed soil areas resulting from removal ofBMPs or vegetation shall be permanently
stabilized.
xii.Element 12.Manage the Project:
A.Development projects shall be phased to the maximum degree practicable and shall take
into account seasonal work limitations.
B.The construction site operator shall maintain,and repair as needed,all sediment and
erosion control BMPs to assure continued performance oftheir intended function.
C.The construction site operator shall periodically inspect its sites.For projects that disturb
one or more acres,site inspections shall be conducted bya Certified Erosion and
Sediment Control Lead,who shall be identified in the SWPPP and shall be present on-
site or on-call at all times.
D.Construction site operators shall maintain,update and implementtheir SWPPP.
Construction site operators shall modify their SWPPP whenever.there is a change in
design,.construction,operation,or maintenance at the construction site that has,or could
have,a significant effect on the discharge ofpollutants to waters ofthe state.
j)Erosivity Waiver-The City may allow construction site operators to qualify for a waiver from the
requirement to submit a SWPPP for review by the City provided the following conditions are
met:
1.The site will result in the disturbance ofless than 5 acres;and the site is not a portion ofa
common plan ofdevelopment or sale that will disturb 5 acres or greater;and
ii.The project's rainfall erosivity factor ("R"Factor}is less than 5 during the period of
construction activity,as calculated using the Texas A&M University online rainfall
erosivity calculator at:http://ei.tamu.edu/.The period ofconstruction activity begins at
initial earth disturbance and ends with final stabilization;and
iii.The entire period ofconstruction activity falls between June 15 and September 15;and\
iv.The site or facility has not been declared a significant contributor ofpollutants;and
v.There are no planned construction activities at the site that will result in non-stormwater
discharges;and
vi.A waiver is allowed bythe City;and
vii.The construction site operators notify the City ofthe intention to apply this waiver at
least one week prior to commencing land disturbing activities.The notification must
Item 10 - 61
999 include a summary ofthe project information used in calculating the project's rainfall
1000 erosivity factor (see #ii.above)and a certified statement that:
1001
1002 A.The operator will comply with applicable local stormwater requirements:and
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1004 B.The operator will implement appropriate erosion and sediment control BMPs to prevent
1005 violations ofwater quality standards.
1006
1007 3)Minimum Requirement #3:Source Control ofPollution-All known,available and reasonable source
1008 control BMPs are required for all projects approved in the City.Source control BMPs must be selected,
1009 designed,and maintained in accordance with Volume IV ofthe StormwaterManual or an approved
1010 equivalent manual approved by the Department ofEcology.
1011
1012 4)Minimum Requirement #4:Preservation ofNatural Drainage Systems and Outfalls-Natural drainage
1013 patterns shall be maintained,and discharges from the project site shall occur at the natural location,to the
1014 maximum extent practicable.The manner by which runoffis discharged from the project site must not
1015 cause a significant adverse impact to downstream receiving waters and down gradient properties.All
1016 outfalls require energy dissipation.
1017
1018 5)Minimum Requirement #5:On-site Stormwater Management-The project site must provide On-site
1019 Stormwater Management BMPs to infiltrate,disperse,and retain stormwater runoffonsite to the
1020 maximum extent feasible without causing flooding or erosion impacts.RoofDownspout Control BMPs,
1021 functionally equivalent to those described in Chapter 3 ofVolume III ofthe Stormwater Manual,and
1022 Dispersion and Soil Quality BMPs,functionally equivalent to those in Chapter 5 ofVolume V,ofthe
1023 Stormwater Manual shall be required to reduce the hydrologic disruption ofdeveloped sites.
1024
1025 6)Minimum Requirement #6:RunoffTreatment
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1027 a)Project Thresholds-The following require construction ofstormwater treatment facilities (see
1028 Table 14.15.050(6)below):
1029
1030 i.Projects in which the total ofeffective,pollution-generating impervious surface (pGIS)is
1031 5,000 square feet or more in a threshold discharge area ofthe project,or
1032
1033 ii.Projects in which the total ofpollution-generating pervious surfaces (PGPS)is three-
1034 quarters (3/4)ofan acre or more in a threshold discharge area,and from which there is a
1035 surface discharge in a natural or man-made conveyance system from the site.
1036
Table 14.15.050(6)Treatment Reouirements bv Threshold Discharl"!e Area
<%acres of >%acres·PGPS <5,000 sfPGIS >5,000 sfPGIS
PGPS
Treatment X X
Facilities
Onsite Stormwater X X X X
BMPs
1037 PGPS =pollution-generating pervious surfaces
1038 PGIS =pollution-generating impervious surfaces
1039 sf=square feet
1040
1041 b)Treatment-Type Thresholds-Ifthe construction project requires stormwater treatment,the
1042 following treatment type thresholds shall be used to determine applicable treatment options:
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i.Oil Control:Treatment to achieve Oil Control applies to projects that have "high-use
sites."High-use sites are those that typically generate high concentrations ofoil due to
high traffic turnover or the frequent transfer ofoil.High-use sites include:
A.An area ofa commercial or industrial site subject to an expected average daily traffic
(ADT)count equal to or greater than 100 vehicles per 1,000 square feet of gross
building area;
B.An area ofa commercial or industrial site subject to petroleum storage and transfer in
excess of 1,500 gallons per year,.not including routinely delivered heating oil;
C.An area ofa commercial or industrial site subject to parking,storage or maintenance
of25 or more vehicles that are over 10 tons gross weight (trucks,buses,trains,heavy
equipment,etc.);
D.A road intersection with a measured ADT count of25,000 vehicles or more on the
main roadway and 15,000 vehicles or more on any intersecting roadway,excluding
projects proposing primarily pedestrian or bicycle use improvements.
11.Enhanced Treatment:Enhanced treatment for reduction in dissolved metals is required
for the following project sites that discharge to fish-bearing streams,lakes,.orto waters or
conveyance systems tributaryto fish-bearing streams or lakes:
A.Industrial project sites,
B.Commercial project sites,
C.Multi~familyproject sites,and
D.High AADT roads as follows:
•Fully controlled and partially controlled limited access highways with Annual
Average Daily Traffic (AADT)counts of15,000 or more
•AlLother roads with an AADTof7,500 or greater
However,such sites listed above that discharge dire.ctly(or,indirectly through a
municipal storm sewer system)to Basic Treatment Receiving Waters (Appendix I-C of
the Stormwater Manual),and areas ofthe above-listed project sites that are identified as
subject to Basic·Treatment requirements,are also not subject to Enhanced Treatment
requirements.For developments with a mix ofland use types,the Enhanced Treatment
requirement shall apply when the runofffrom the areas subject to the Enhanced
Treatment requirement comprise 50%or more ofthe total runoffwithin a threshold
discharge area.
iii.Basic Treatment:Basic Treatment generally applies to:
A.Project sites that discharge to the ground,UNLESS:
•The soil suitability criteria for infiltration treatment are met;(see Chapter 3 of
Volume III ofthe Stormwater Manual for soil suitability criteria)or
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•The project uses infiltration strictly for flow control-not treatment -and the
discharge is within ~-mile ofa phosphorus sensitive lake (use a Phosphorus
Treatment facility),or within ~mile ofa fish-bearing stream,or a lake (use an
Enhanced Treatment facility).
B.Residential projects not otherwise needing phosphorus control as designated by USEPA,
the Department ofEcology,or by the City;and
C.Project sites discharging directly to salt waters,river segments,and lakes listed in
Appendix I-C ofthe Stormwater Manual;and
D.Project sites that drain to streams that are not fish-bearing,or to waters not tributary to
fish-bearing streams;
E.Landscaped areas ofindustrial,commercial,and multi-family project sites,and parking
lots ofindustrial and commercial project sites that do not involve pollution-generating
sources (e.g.,industrial activities,customer parking,storage oferodible or leachable
material,wastes or chemicals)other than parking ofemployees'private vehicles.For
developments with a mix ofland use types,the Basic Treatment requirement shall apply
when the runoff fromthe areas subject tothe Basic Treatment requirement comprise 50%
or more ofthe total runoffwithin a threshold discharge area.
c)Treatment Facility Sizing-Water Quality Design Storm Volume:The volume ofrunoffpredicted
from a 24-hour stonn with a 6-month return frequency (a.k.a.,6-month,24-hourstorm).Wetpool
facilities are sized based upon the volume ofrunoffpredicted through use ofthe Natural Resource
Conservation Service curve number equations in Chapter 2 ofVolume III ofthe Stormwater
Manual,for the 6-month,24-hour storm.Alternatively,the 91stpercentile,24-hour runoff
volume indicated by an approved continuous runoffmodel may be used.
d)WaterQuality Design FlowRate
1.Preceding Detention Facilities or when Detention Facilities are not required:The flow
rate at or below which 91%ofthe runoffvolume,as estimated by an approved
continuous runoffmodel,will be treated.Design criteria for treatment facilities are
assigned to achieve the applicable performance goal atthe water quality design flow rate
(e.g.,80%TSS removal).
ii.Downstream ofDetention Facilities:The water quality design flow rate must be the full
2-year release rate from the detention facility.
•Alternative methods may be used ifthey identify volumes and flow rates that are
at least equivalent.
•That portion ofany development project in which the above PGIS or PGPS
thresholds are not exceeded in a threshold discharge area shall apply On-site
Stormwater Management BMPs in accordance with section 14.15.050.5-
Minimum Requirement #5:On-site Stormwater Management.
e)Treatment Facility Selection,Design,and Maintenance-Stormwater treatment facilities shall be:
i.Selected in accordance with the process identified in Chapter 4 ofVolume I ofthe
Stormwater Manual,
Item 10 - 64
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ii.Designed in accordance with the design criteria in Volume V ofthe Stormwater Manual,
and
iii.Maintained in accordance with the maintenance schedule in Volume V ofthe Stormwater
Manual.
f)Additional Requirements-The discharge ofuntreated stormwater from pollution-generating
impervious surfaces to ground water is prohibited,except for the discharge achieved by
infiltration or dispersion ofrunofffrom residential sites through use ofOn-site Stormwater
Management BMPs.
7)Minimum Requirement #7:Flow Control
a)Applicability-Except.as provided below,all projects shall provide flow control to reduce the
impacts ofstormwater runofffrom impervious surfaces and land cover conversions.The
requirement below applies to projects that discharge stormwater directly,or indirectly through a
conveyance system,into a fresh water.
i.Flow control is not required for projects that discharge directly to,or indirectly through
an MS4 to a water listed in Appendix I-E ofthe Stormwater Manual subject to the
following restrictions:
A.Direct discharge to the exempt receiving water does not result in the diversion of
drainage from any perennial stream classified as Types 1,2,3,or4in.the•~tate of
Washington Interim Water Typing System,or Types "S", "F",or "Np"inthe
Permanent Water Typing System,or from any category I,II,or III wetland;and
B.Flow splitting devices or drainage BMP's are applied to route natural runoffvolumes
from the project site to any downstream Type 5 stream or categoryIV wetland:
•Design offlow splitting devices or drainage BMP's will be based on continuous
hydrologic modeling analysis.The design will assure that flows delivered to
Type 5 stream reaches will approximate,but in no case exceed,durations ranging
from 50%ofthe 2-yearto the 50-year peak flow.
•Flow splitting devices or drainage BMP's thatcieliver flow to category IV
wetlands will also be·designed using continuous hydrologic modeling to preserve
pre-project wetland hydrologic conditions unless specifically waived or
exempted;and
C.The project site must be drained by a conveyance system that is comprised entirely of
manmade conveyance elements (e.g.,pipes,ditches,outfall protection,etc.)and
extends to the ordinary high water line ofthe exempt receiving water;and
D.The conveyance system betweenthe project site and the exempt receiving water shall
have sufficient hydraulic capacity to convey discharges from future build-out
conditions (under current zoning)ofthe site,and the existing condition from non-
project areas from which runoffis or will be collected;and
E.Any erodible elements ofthe manmade conveyance system must be adequately
stabilized to prevent erosion under the conditions noted above.
Item 10 - 65
1196 ii.Ifthe discharge is to a stream that leads to a wetland,or to a wetland that has an outflow
1197 to a stream,both this Minimum Requirement (section 14.15.050.7 Minimum
1198 Requirement #7)and section 14.15.050.8 Minimum Requirement #8 apply.
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1200 b)Thresholds-That portion ofany development project in which the below thresholds are not
1201 exceeded in a threshold discharge area shall apply Onsite Stormwater Management BMPs in
1202 accordance with section 14.15.050.5-Minimum Requirement #5:On-site Stormwater
1203 Management.The following require construction offlow control facilities and/or land use
1204 management BMPs that will achieve the standard flow control requirement for western
1205 Washington (see Table 14.15.050(7)):
1206
1207 i.Projects in which the total ofeffective impervious surfaces is 10,000 square feet or more
1208 in a threshold discharge area,or
1209
1210 ii.Projects that convert %acres or more ofnative vegetation to lawn orlandscape,or
1211 convert 2.5 acres or more ofnative vegetation to pasture in a threshold discharge area,
1212 and from which there is a surface discharge in a natural orman-made conveyance system
1213 from the site,or
1214
1215 iii.Projects that through a combination ofeffective impervious surfaces and converted
1216 pervious surfaces cause a 0.1 cubic feet per second increase in the 100-year flow
1217 frequency from a threshold discharge area as estimated using the Western Washington
1218 Hydrology Model or other model approved in the StormwaterManual.
1219
Table 14.15.050(7)Flow Control Requirements by Threshold Discharge Area
Flow Control On-site Stormwater
Facilities Mana!!ementBMPs
<%acres conversion to lawn/landscape,X
or <2.5 acres to oasture
>%acres conversion to lawn/landscape,X X
or >2.5 acres to oasture
<10,000 square feet ofeffective X
imoervious area
>10,000 square feet ofeffective X X
imDervious area
>0.1 cubic feetper second increase in X X
the 100-vearflood frequency
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1222 c)Standard Flow Control Requirement-Stormwater discharges shall match developed discharge
1223 durations to pre-developed durations.for the range ofpre-developed discharge rates from 50%of
1224 the2-year peak flow up to the full 50-year peak flow.This standard requirement is waived for
1225 sites that will reliably infiltrate all the runofffrom impervious surfaces and converted pervious
1226 surfaces.The pre-developed condition to be matched shall be a forested land cover unless:
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1228 1.Reasonable,historic information is available that indicates the site was prairie prior to
1229 settlement (modeled as "pasture"in the Western Washington Hydrology Model);or
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11.The drainage area ofthe immediate stream and all subsequent downstream basins have
had at least 40%total impervious area since 1985.In this case,the pre-developed
condition to be matched shall be the existing land cover condition.Where basin-specific
studies determine a stream channel to be unstable,even though the above criterion is met,
the pre-developed condition assumption shall be the "historic"land cover condition,or a
land cover condition commensurate with achieving a target flow regime identified by an
approved basin study.
d)Additional Requirement-.FlowControl BMPs shall be selected,designed,and maintained in
accordance with Volume III ofthe Stormwater Manual or an approved equivalent.
8)Minimum Requirement #8:Wetlands Protection
a)Applicability-The requirements below apply only to projects whose stormwater discharges into a
wetland,either directly or indirectly through a conveyance system.These requirements must be
met in addition to meeting section 14.15.050.6-Minimum Requirement #6,RunoffTreatment.
b)Thresholds-The thresholds identified in section 14.15.050.6 Minimum Requirement #6 -Runoff
Treatment,and section 14.15.050.7 Minimum Requirement #7 -Flow Control shall also be
applied for discharges to wetlands.
c)Standard Requirement-Discharges to wetlands shall maintain the hydrologic conditions,
hydrophytic vegetation,and substrate characteristics necessary to support existing and designated
uses.The hydrologic analysis shall use the existing land cover condition to determine the existing
hydrologic conditions unless directed otherwise.A wetland can be considered for hydrologic
modification and/or stOITrlwater treatment in a.ccordance with Guide Sheet IE in Appendix I-D on
the StormwaterManual.
d)Additional Requirements-Stormwater treatment and flow control facilities shall notbe built
within a natural vegetated buffer,·except for:
i.As necessary conveyance systems as approved by the director;or
ii.As allowed in wetlands approved for hydrologic modification and/or treatment in
accordance with Guide sheet 1B in Appendix I-D ofthe Stormwater Manual.
9)Minimum Requirement #9:Operation and Maintenance-All project submittals must include an
operation and maintenance manual that is consistent with the provisions in Volume V ofthe Stormwatet
Manual for all proposed stormwater facilities and BMPs.The party (or parties)responsible for
maintenance and operation shall be identified in the operation and maintenance manual.For private
facilities approved bythe City,a copy ofthe manual shall be retained onsite or within reasonable access
to the site,and shall be transferred withthe property to the new owner.For public facilities,a copy ofthe
manual shall be retained in the appropriate department.A log ofmaintenance·activity that indicates what
actions were taken shall be kept and be available forinspection by the City.
This seetiofl idefltifies the 10 miflimum requiremeBts :fur storm "vater rnatlagemeflt applieable to fle'll
developmeBt afld redevel()pmeBt sites.See the ffiaflual for additioflal details related to eaeh ofthe
miflimum requiremeflts.The miflimum requiremeBts are:
1278 •Preparatiofl ofStorm Water Site PleBS
Item 10 - 67
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COflstruetiofl StOffB '.llato,Pollutiofl Pro:r;ofltiofl
SOUfeo COfltrol ofPollutiofl
Prosorvatiofl ofNatural Draiftago Systoms aftd Outfalls
Oft Sito StOffB Viator ~4aB:agomoflt
RunoffTroatmoftt
Flo'll Control
Vlotlaftds Protoetioft
Basifl/\llatorsaod Platlftiflg
Oporatiofl afld ~4:aintoflafleo
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(1)MiHi~liHl:RequiremeHt No.•·1:Prep&ratiOH ofStorm Water Site .PlaBs.All flroj eets meetieg the
tarosaolds Ifl ~G.4C 14 .15.040 saall proparo a storm viator sito plaft.
(2)MiHiB'll:lm Ref:1tlifemeHtl'lo.2:CoHstruetioH:Stonn Watef PollatioH PreveHtiOH (SJNPp).All Hew
dO'/olopmont afld rodol/olopmoflt saall eomply 'Nita eoftstruetioft SWPP olomonts nos.·l tarouga 12 aolovl.
(a)Projeets iH '[ihiehtheH()W,fefJlaeea,Of H~W flltls fefJlaeea imflef¥ioas surfaees total 2,000 sqttafe
fe~~Of more ofdtstaFb7,000 sE):liare ~et ormofe ofl~amastfltefJare a eOHstFUetioH SV1PP fllaB
~8 .1PPP)as fla:t ofthe storm watef site fllaB.Baeh ofthe 12 elemems mast be eoasielei'ea aBa iHeltlelea
1ft tao eOftstruetiOft SWPPP uftloss tao diroetor doeidos taat sito eoftditiofts roftdor tao olomont
oonoeossary aHd tao oxomptiofl from taat olomoftt is eloarly justifiodifi tao ftarrativo oftao S'.VPPP.
(b)Projeets that aaa Of refllaee lessthaB2,OOO sqaare feet ofimflervioas Sltffaee Of EiistuFb.less tflaH
7,000 sqUaTO :foot oflaHd aro ftot roql:tirod to proparo a eoftstruetion Sv-rppp,aut must eonsidor all oftao
12 ol~monts ofe~ftstru.etioftStOffB Viator pollutioft prOl/Ofttion aftd dOl/olop eOfttrols for all olomoftts taat
portalfl to tao prOjoet SitO.
(e)Blomont 1:~4ark Cloariftg Limits.
(i).~riOf to begiH:H:i~laBa aistaFbiHg aetivities,iHeltlEiiHg eleariHg aBa graaiHg,all eleariHg limits,
SOftSitP/O aroas aftd taoir auffors,a~d troos taat aro to ao prosorved v/itaift tae eOftstruetioft area saould
be elearly markea,both iH the fiela aBa OH the fllaBs,to flfe'ieHt damage aBa off site imflaets.
(ii)Plastie,metal,or stake 'l/iro Foftee may ae used to mark the eleariftg limits.
(d)Blemeftt 2:Bstaalisa Coftstruetioft lAJ:eeess.
(i)lAJ:seess Limited.Coftstruetioft 'teaiels aeeess aftd s~(it saallae limited to ofle route ifpossiale.
Item 10 - 68
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~ii)~aekiHg Se~imeHt.lA.reeess pOiHtS shall be stabilii3ea \vith qlaarry spall or efUshea roele to
mlHlmli3e the traekIHg ofseaimeHt OHtO plablie roaas.
(iii)¥trheel ¥trash.J}lheel viash or tire baths sholala be loeatea OH site,ifapplieable.
(iv)CleaH Plablie Roaas.Plablie roaa~shall b~eleaHea thorougllly at the eHa ofeaeh aay.Seaimem
sha~l be re~ovea from roaas by shO.ltrellH~or plekup sv;eepiHg aHa shall be traHsportea to a eotTtrollea
sealmetTt alsposa!area.Street v;ashlHg v;lll be allo'yvea oHly after seaimetTt is removea iH this maHHer.
(Ii)S!reet \llash Water.Street v;ash V/aste'Hater shall be eotTtrollea biT pumpiHg baele OH site or
otherWise ee pre'/eRtea Hom ElisehargiBg iato systems triffiltary to state stHfaee waters.'
(e)ElemeHt 3:COHtrol Flo\v Rates.
(i).GeHeral.~roperties .aHa v;atervtrays aovlH:stream from aevelopmeHt sites shall be proteetea from
ero~lOa ~ue to mereases m the voh:mie,veloeity,aHa peak flow rate ofstonn water fHHoff from the
prOjeet SIte.
(ii)Dov;Hstream l\H:alysis.Dov;Hstream aHalysis is Heeessary ifehaHges iH flo';;seoula impair or
alter eOHY;eyaHee systems,stream baHks,bea seaimeHt or aqlaatie habitat.
(iii)B}'~s FUH?tioHal.Storm v;ater reteHtiofllaeteHtioH f&eilities shall be eOHstruetea as OHe ofthe
~rst steps lH graalHg..DeteH!ioH f&eilities shall be fUHetioHal prior to eOHstruetioH ofsite
lmprovemetTts (e.g.,lmperYlOUS surfaees).
.(itt)AaElitioaal Flo""l StaHaaras.!he Elireetor may reqllire poaa desigas that pro'/iae aaaitioaal or
alfferetTt storm 'Hater floYYveoHtrollf HeeessarytoaaafOss loeal eOHaitioHsor to proteet properties aHa
\vaterv;ays aovlflstream from erosioH alae to iHereasesiH the y;olume,veloeity,aHa peale flO':l rate of
storm v/ater ruHoff from the prDjeetsite.
(It0 Pe~aHeHtlH:filt~!i?H POHas.IfpermaHeHt iHfiltratioH pOHas are usea for flo':1 eOHtFolauriHg
eOHstruetloH,these f&elilties shoula be proteetea from siltatioH auriHg the eOHstruetioH phase.
(1)ElemeHt 4:Install SeaimeHt Comrols.
(.)N 1J'...l~atura •egetatloH.The alaff layer,HatP/e top soil,aHa Hatura!vegetatioH shall be retaiHea iH aH
~Bal~ea state to the.max~mUffi ext.eRt praetieaele._The Ekifflayer,aati'/e top soil,aHa aative .
te~etatloH s~all be retalHea I?aH uHalsturbea state to the maJiimlam eJiteHt praetieable.DuffaHa
aatrre.top soil sho~a ee retal~eaaHa reusea OB site to the maxiHlUffl exteRt praetieable.Where
~eteRtl~a aHa retlseIS HOt feaslele or '.v£ea existiHg site soils are Elistl:n'1:Jea,areas Bot iRteaaea for
Impe~lOussurfaees,pervious pa'iiag,or 'nitffiH the dripliHe ofpreservea trees shall be ameaaea with
foUT IBM.es ofwell eOFHflostea orgaHie matter mixea iRto the top eight iaehes ofsoil or should have
aH o~le eoRteRt o~eetVteeH eight ~a 13 ~er~eRt ffiy weight aHa a pH suitaele for proposea
pl~lHgS.De':Per SOlI ameHametTt vllll proY/lae lmproy/ea grOWiHg meaium aHa iHereasea vlater
holffiHg eapaelty.
.(ii)S~aiHlO~~oval B"MP.Prior to leaviBg a eoastmetioa site,or prior to Eliseliarge to aH
mfiltratlOa fa:lhty,st?nn water fHHoff from aistl:n'1:Jea areas shall pass through a seaimeRt pOBa or
other approprIate sealmetTt removal B}'4P.RUHofffrom fully stabilii3eaareas may be aiseharged
Item 10 - 69
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\yithout a sedimeflt removal B},4P,but must meet the flovi sOBotrol performaflsestafldard ofelemeflt
flO.3.Full stabilizatiofl meaflS SOflsrete or aspaalt pa:viflg;quarry spalls used as ditsh lifliflg;or tae use
ofrolled erosiofl produsts,a bOflded fiber matriJ(produst,or ,regetatil/e So,rer ifl a maflfler that V/ill
fully pre,reatsoil·erosioD.·Tae·director saall iflspect afld appro,re areas stabilized by meaflS otaer taafl
pavement or quarry spalls.
(iii)BMPs :f.aH:etisaal.SeElimeBt ~SH:Els,¥egetateEl bl:lffef stri~s,seE1imeH:t barriers Sf fikefS,~kes,
and otaerB}'4Ps iflteflded to trap sedimeflt on site saall be cOflstructed as Ofle ofthe first steps Ifl
gradiflg.Taese B}'4Ps shall be functioflal before otaer lafld disturbiflg acti,rities take place.
(iv)Seediflg.Earthen structures such as dams,dikes,and dilfersiofls shall be seeded afld mulcaed
accordiflg to the timiflg ifldicated ifl elemeflt no.5.
(g)Elemeflt 5:Stabilize Soils.
(i)General.lA.ell e:1lposed afld uWliorked soils shall be stabilized by ap~licationof effect.ive B}'~s
that protect the soil from the erosive forces ofraifldrop impactafld flO\Ylng ;vater,afld.v/lflderosl0fl.
(ii)lAi:pplicable Practices.lA.tpplicable practices iflclude,but are flOt limited to,tempora~afld
permafleflt seeding,soddiflg,mulchiftg,plastic covering,soil applicatioft ofpolyacf)rl8mlde (PIL\}.4),
early applicatiofl ofgra,rel·base·Ofl areas.to be paved,.afld dust cOfltrol.
(iii)Soil Stabilization.Soil stabilizatioft measuresselect~dsftould be ~pp~opriatefor tae ti?:e o~
year,site cOflditions,estimated duratiofl ofuse,afld potefltlal water qualIty Impacts that stabllizatl0fl
ageflts may have Ofl d01Nflstream viaters or groufld v/ater.
(iv)Soil Stockpiles.Soil·stoskpiles must be stabilized afld protested vlith sedimeflt trappiflg
measures.
(li0 Liflear Facilities.Work Ofl linear COftstructioft sites and astivj{ies,iBcludiftg rigfit ofVier aftd
easemeflt cleariflg,roadvlay developmeflt,pipelifles,afld treflchiftg for utilities,shall flOt exceed the
sapability ofthe ifldividual cOfltractor for his portion oftaeproject to iflstall the beddiflg materials,
roadbeds,structures,pipelifles,and/or utilities,afld to restabilize the disturbed soils,meetiflg the
timiflg conditiofls listed abol/e ifl subsectiofl (2)(g)(ii)ofthis sectioft.
(h)Elemeflt 6:Protect Slopes.
(i)Cut aftd Fill Slopes.Cut and fill slopes shall be desigBed afld cOflstmcted ifl a maflfler that v/ill
minimize erosiofl.
(ii)Soil Types.COflsider soil type afld its potemial for erosion.
(iii)RUfloff'lelocities.Reduce slope fUlloff velocities by reduciftg the cOfltifluOUS leflgth of slope
lyyith terraciflg afld di,rersiofls,reduce slope steepfless,afld roughefl slope surface.
(iv)Dilirerted Flov/s.Dil/ert upslope draiflage afld rufl Ofl \yaters from off site vtrith iflterceptors at
top ofslope.Off site storm vlater should be hafldled sOfJarately from storm \vater geflerated Ofl the
site.Dilfrersiofl ofoff site stoffil1yyater aroufld the site may be a lliable option.Diverted flo\vs shall be
redirected to the flatural draiflage locatiofl at or before the property boufldary.
Item 10 - 70
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(If)Colleeted FIOlyYs.COfltaift dOlllftslope eolleeted tlOlllS ifl pipes,slope draifls,or proteeted
ehaflflels.
(yi).GroUftd Water.Pro'lide draiflage to remO'fre groUftd vlater ifttcrseetiflg the slope surfaee of
eJqJosed soil areas.
('Iii)EJ(e8l/atioft.EJf:eavated material shall be plaeed Oft the uphill side oftreflehes,eoftsisteftt v/ith
safety aftd spaee eOflsideratiofls.
(viii)Cheele Dams.Cheek dams shall be plaeed at regular ifltervals v/ithifl treflehes that are eut
dO\Vfl a slope.
(ill)Stabilize Soils.Stabilize soils Ofl slopes,as speeified ifl elemeftt flO.5.
(i)Elemeftt 7:Proteet Draift mlets.
(i)Gefleral.1'\11 storm draiflifllets made operable dUriflg eOflstmetioflshall be proteeted so that
storm vlater fUfloff shall ftot eflter the eowleyaftee system v/ithout first beiflg filtered or treated to
remove sedimeftt.
(ii)Roads.tALll approaeh roads shall be·Ieept eleafl,aftd all sedimefttaftd·street VIRSh w~er sh~ll ftot
be allov/ed to eftter storm draifls v/ithout prior aftd adequate treatmeflt Uftless treatmeftt is proYided
before the storm draift diseharges to vf'iaters ofthe state.
0)Elemeflt 8:Stabilize Chaflflels afld Outlets.
(i)Gefleral.fLll temporary Oft site eOfl'/eyaflee ehaflflels·shall be desigfted,eOflstrueted afld
stabilized to preveftt erosioft from the eJ(peeted \reloeit)r oftlov;from a tVIO year,24 hour frequeftej'i
storm fur the developed eOftditioft.
(ii)Stabilizatioft.··Stabilizatioft,ifleludiftg armoriflg material,adequate topreYeftt erosiofl ofoutlets,
adjaeeftt stream baflIes,slopes aftd dO'Nftstream reaehes shall be provided·at the outlets ofall
eowleyaftee systems.
(Ie)Elemeflt 9:COfltrol Pollutaftts.
(i)Gefleral.tALll pollutaftts,ifleludiftg v/aste materials aftd demolitioft debris,that oeeur Ofl ~ite .
duriflg eOflstruetiofl shall be hafldled aftd disposed ofifla maftfler that does ftot eause eofttamiflatiofl
ofstorm v/ater.
(ii)\'aftdalism.Cover,eOfltaiflmeftt,aftd proteetiofl from'/aftdalism shall be pro'/ided for all
ehemieals,liquid produets,petroleum produets,aftd floftiftert v/astes preseflt Ofl the site.
(iii)Equipmeftt ~4aiflteflaflee.}'4aiflteflaBee afld repair ofhe~'Yequip~cfltafld ~ehieles iWIOI'liflg.
oilehaflges,hydraulie system draifl dOVIfl,sol'leftt afld degreasiflg eleaBiflg operatiofls,fuel taBIe draifl
dO\Vfl afld remo'/al,aBd other aetivities v/hieh may result ifl diseharge or spillage ofpollutaflts to the
groufld or ifltO storm vlater fUfloffmust be eo~dueted.USiflg spill·p:evefltio~measures,su~h~s ?rip
paflS.COfltamiflated surfaees shall be eleaBed immediately fullo'yviflg 8:lTY diseharge or spillifleideflt.
Item 10 - 71
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
Emepgeftey ref'airs may be f'erformed Oft site usiftg temporary plastie plaeed befteafil aTld,ifraiftiftg,
o:v=er the ',ehiele.
(iy)J}lheel :\llash.Wfteel1xash,or tire bath viaste'.vater,shall be diseharged to a sej'arate Oft site
treatment system.It may be diseharged to the saftitary sevier system oftly ifeXf'ressly allo.vled by the
loeal sewer distriet authority.
('I)lA;:grieultural Ghemieals.tALf'f'lieatioft ofagrieulmral ehemieals,ifteludiftg fertili23ers aad
f'estieides··sl:lall beeoftdueted ift a maftfter aftd at af'f'lieatioft rates filat viiIl ftot result ift loss of,r .ehemieal to storm viater runoff.~4:anufaeturers'reeommendations shall be follo'lied for 81Jf'ieation
rates and f'roeed1:1res.
('Ii)pH ~4:anagement.~4:aTlagememofpH modif)ring S01:1rees shall pre'/ent eontamination offUftoff
and storm \¥ater eolleeted on the site.These S01:1rees inelude,but are not limited to,bulkeemem,
eement kiln dust,fly aSh,fte'll eofterete vlasfiiftg aftd euriftg v/aters,V"faste streams gefterated from
eofterete griftdiftg aftd sav/iftg,e~tposed aggregate proeesses,and eofterete f'umpiBg and mi~(er
vlasho1:1t vlaters.
(1)Elemeftt 10:Gofttrol Dewateriftg.
(i)Geaeral.tALll foundatioa,'lault,aad treaeh de\vateriBg v/ater,'ltrfiieh hcpfe similar eharae~eristies
to storm \vater fUaoffat the site,shall be diseharged iftto a eoatrolled eonveyaftee system,prior to
diseharge to a sedimem trap or sediment pOftd.Ghaflflels must be stabili23ed,as sf'eeified ift element
ft&:-8.:
(ii)Gleaa J}later.Gleaft,aoftturbid de'l/ateriftg \vater,sueh as v/ell f'oim grouad v/ater,eaa be
disehargedto systems tributary to state surfaoe \vaters,as speeified ia elemeatao.8,proyided the
de'.vateriag flo'yV does ftot eause erosioa or floodiag offilereeei',iag '.vaters.These eleQfl v/aters
should flOt be routed filrough sedimeat poads v/ith storm \vater.
(iii)Gontamiaated Water.Higfll)T turbid orofilerv/ise eontamiaated dev/ateriftg v/ater,sueh as from
eoastruetioa equipmeftt of'eratioft,elamshell digging,eoaerete tremie f'our,or vlork iaside a
eofferdam,shall be haadledseparately from storm \vaterat the site.
(iy)Other Disposal Of'tions.Def'oading oa site eonstraiftts,devlateriag may iftelude:iafiltratioft;
transport off site ialiehiele,sueh as a 'iae1:1Uffi flush truek,:for legal disposal iaa manaerthat does not
pollute state v;aters;Oft site treatmeat usiftg ehemieal treatmeflt or other suitable treatment
teehnologies;or saaitary se\ver disehapge viith (loeal se'ller distriet appro'ial)appro'fral ifthere is ftO
other of'tioft.
(m)Element 11:~4:aintaift B~4Ps.
(i)Gefteral.tALl1 temporary aadpermaneftt erosion and sedimeat eoatrolB~4Psshall be maimaiaed
aad repaired as needed to assure eontiflUed per:formanee oftheir iftteaded funetioft.tALl1 maimeftanee
and repair shall be eoadueted ift aeeordaflee viith B~4Ps.
(li)Iaspeetioft.Sedimeftt eoatrol B~4Ps shall be iftspeeted \veelcl)T orarter a fUaoffprodueing storm
eyeflt during the dry seaSOft and daily during the Viet seasoft.
Item 10 - 72
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
(iii)Remo;veB~{Ps.lAJ:11 tempoFary eFosiofl aTld sedimeflt eofltFoI B~{Ps sllall be remo¥ed viitllifl 30
days afteF fi~al site stabilizatiofl is aellie¥ed OF afteF tfle temporary B~{Ps aFe flO 10flgeF fleeded.
Tmpped sedlmeflt s~all be Femolled OF stabilized Ofl site.DistuFbed soil aFeas Fesultiflg from Femo¥al
ofB~{Ps OF 'iegetatlofl sllall be pennanefltly stabilized.
(fl)Elemeflt 12:~4aflage tile PFojeet.
(i)Pllasiflg ofCOflstruetiofl.De¥elopmeflt proj eets sllall be pllased villeFe ieasible ifl oFdeF to
pFeYeflt,t~tile maximu~e~{teflt pmetieable,tile tFaflsport ofsedimeflt from tile pFojeet site dUFiflg
eOflstruetlOfl.~~'~egetatlofl ofe~{pOSedaF~asafld maiflteflaflee oftilat Yegetatiofl.sllall be afl ifltegFal
part ~ftile aetpy:ltles fOF aflY pllase.Cleanflg afld gFadiflg aetiyities fOF deYelopmeflts sllall be
peFffiltted oflly If eo~duetedpu~suafltto afl appFO'yted site de'lelopmeflt plafl (e.g.,subdi¥isiofl
appFoval)t~at establl.slles pefffiltt?d aFeas of ele~riflg,~adiflg,euttiflg,afldfilliflg.Wllefl establislliflg
tll~se.pSFmltted elea?~g ~~d gF~dlflg aFeas,eOflsldemtlofl sllould be gi'ytefl to miflimiziflg Femova}of
e~HstlflgtFees afld ffilfl~mlzlflg dl.sturbafleele~mpaetiofl offlatilie soils e~{eept as fleededfor buildiflg
purpos~~.Tllese peFffiltted ele~flg afld gFadlflg ~reas aTld aflY otlleF areas Fequired to preserve eritieal
OF se.flsltPle areas?buffsFs,flatPle gF~\lltll pFoteetlofl easemeflts,OF tree Fetefltiofl areas as may be
FequtFed by tile dlreetor,sllall be dellfleated Ofl tile site plaBs aTld tfle de'ielopmeBt site.
(ii)C??~diBatioB 'yvitll OtlleF COfltFaetors.Tile primary projeet applieaflt sllall e~valuate,\vitll iflput
~rom u:tllltleSaB~.~tfler eOfltFaetoFs,tile StOFffi 'Hater Il1£l;fiagemeflt FequiFemeflts fOF tfle efltiFe pFoj eet,
IfleludlBg tfle utilItIes,\lilleB prepariBg tile eOBstruetiofl S'}lPPP.
(ii~)InspeetiOB.l\ll B~{Pssllall be iBspeeted,maiBtaifled,aBd FepaiFed as Beeded to assure
eOBtlBued perfoFffiaBee oftfleiF iBteBded fuB:etioB.
.(lA~.Cert~fied PFofessioflal.A eertified professioflal ifl eFosiofl afld sedimeBt·eofltFoI sllall be
1aeRt1fiea 1a the esaswetisa SWPPP aHa shall be sa site Sf sa eall at all til'8:es.Certifieatisa may
be thTougll tile WaslliBgtofl State DepartmeBt ofTmBsportation(AJ:ssoeiated Gefleml Cofltraetors
(\ll~DOT;4AJ:GC)COBs!ruetioB Site Erosiofl aBd SedimeBt Cofltrol Certifieatiofl PFOgFam OF aTlY
equrvaleBt loeal OF flatloBal eertifieatiofl afldloF traiBiBg progFaffi.
(B)SampliBg.Sampliflg aBd aBa~ysis oftile StOFffi viater disellarges from a eOBstruetiofl site may
be Be~essary o~a ease by ease basIs to eflSUFe eompliaBee \liitll staBdards.~40BitOFiBg aBd
Feportlflg reqUlFemeflts m8:)T be establislled by tile direetor wlleB fleeessary.
(C)~40dif;T S\\TPPP.WlleBe'yTeF iflspeetiofl aTldloF mOBitoFiBg reveals tllat tile B~{Ps ideBtified iB~e ~sastrl:letisa SWPPP are iaadequate,due ts the aetl:la1 diseharge sfSfpsteRtial ts diseharge a
slgalfieaBt amoUBt ofaBy pollutaBt,tile S'}/PPP sllall be modified,as appFopriate,iB a timely
maBfleF.
(iV)COBstruetioB S\,rpPP.Tile eOBstruetiofl S\\rppp sllall be Fetaifled OB site or v/itllifl FeasoBable
~eeess to !Ile site.Tllee.oflstruetioB S'}/PPP sllall be modified 'ylyrflefleVer tlleFe is a sigaifieaBt ellaBge
IB tile deslga,eOBstFUetloB,.operatioB,.OF maiBteflaBee ofany B~{P.
(3)~4iBimum Requiremeflt tlo.3:Souree COBtFoI ofPollutiofl.lAJ:lllmo'llfl,ayailable afld reasoBable
souree ~o~rol B~{Ps s~all be applied to all pFojeets..SOUFee eofltFoI B~{Ps sllall be seleeted,desigaed,
afld malBtalfled aeeoFdlBg to tile maBUal.
Item 10 - 73
1492 (4)~4:i:eimam ReqtIireme:etNe.4:Preservatie:e efNatural :Qrai:eageSystems a:ed Outfalls.l'~atuFal
1493 drai:eage patterns shall be mai:etai:eed,a:ed disoharges frem the prejeot site shall eoour at the :eaRtral
1494 leoatie:e,te the maximum e~rtempraotioable.The ma:e:eer by vAlioh fUHeffis disoharged frem the prejeot
1495 site must :eet oause a sigaifioa:etad1ierse impaot te dew:estream reoei1/i:eg v/aters a:ed devfflgradieHt
1496 preperties.lA.rll eutfalls reqtIire e:eergy dissipatie:e.
1497 (5)~4:i:eimum Requireme:et Ne.5:O:e Site StefH1 Vlater ~4:aBageme:et.Prejeots shall empley e:e site
1498 stefH1 vlater ma:eagemeHt B~4:Pstei:efiltrate,disperse,aHd retai:e stefH1 vlater ru:eeff e:e site te the
1499 maJrimum eJltem feasible vlitheut oausi:eg fieedi:eg er eresie:e impaots.O:e site stefH1 v/ater ma:eageme:et
1500 B~4:Ps as ide:etified i:e the maHUal shall be used fer reefdeVt'flspeut oemrel,fie:;1 dispersie:e,a:ed seil
1501 quality.
1502 (6)}'4:i:eimum Requifeme:etl'te.6:RooeffTreatmeHt.
1503 (8)Threshelds.The rellev/i:eg require oe:estruotie:e efstefH1 ,vater treatme:et faoilities (see Table
1504 14.15.050(6)(8)):
1505 (i)Prejeots i:e vAlioh the tetalefeffeoti¥e,pellutie:e ge:eerati:eg impervieus surfaoe (PGIS)is 5,000
1506 square feet er mere i:e a thresheld disoharge area efthe prejeot;er
1507 (ii)Prejeots i:e vlhioh the tetal efpellutie:e ge:eefati:eg pervieus.stKfaoes (PGPS)is.three quarters ef
1508 a:e aore ef mere i:e athresheld disoharge area,a:ed frem vraioh there is a surfaoe disoharge i:e a Hatural
1509 er maRffiade oe:e1leyafto.e system frem the site.
1510 (iii)That pertie:e efaBY de¥elepme:et prejeot i:e vlhioh the abe:fte PGIS er POPS threshelds are :eet
1511 exoeeded i:e a thresheld disoharge area shall apply e:e site stefH1 ,vater maHageme:et B~4:Ps i:e
1512 aooerda:eoe vlith mi:eimum requiremeHt :ee.5.
Table 14.15.050(6)(a)
TFeatmeBt·RefluipemeBts·1l~T ThFeshald Disehapge t...pea
<3/4 aores POPS>3/4 aores PGPS <5,000 sfPGIS >5,000 sfPGIS
Treatme:et Paoilities
O:e Site StefH1 V/ater B~4Ps-{
1513 PGPS -pellutie:e·ge:eeratiagpervieus surfaoes
1514 PGIS -pellutie:e ge:eerati:eg imper¥ieus surfaoes
1515 sf-square feet
1516 (b)Treatme:et Paoility Siziag.Treatme:et faoilities shall be sized te pre¥ide effeoti¥e treatme:et ef91
1517 peroe:et ofthe aB:eual a1/erage fUfieff1/elume.
1518 (i)The v/aterquality desiga 'ielume shall be used te size '/elume based treatme:et faoilities.The
1519 ¥elume effUfieff shall be estimated usi:eg metheds appre:fzed i:e the maBual.
1520 (ii)The v/ater quality desiga fieVi rate shall be used te size flev;rate based treatmeHt faoilities.
Item 10 - 74
1521
1522
(iii)The direetor may·allov!alternative·methods·ifthey idemify Y/olumes aBd flovl·rates that are at
least eqtiiv;aleftt.
1523 (e)Treatmeat Faeility Seleetioft,DesigFl,aBd ~iaiBteftaBee.Storm vfater treatmeat faeilities sHall be:
1524 (i)Seleeted ia aeeordaaee v!ith the proeess ideatified ift tHe mafRlal;
1525 (ii)Desigaed ia aeeordanee v!ith the desiga eriteriaift the tnaftUal;aad
1526 (iii)~iaimaiaed ia aeeordaBee with the maiateaaftee sehedtile ift themaatial.
1527
1528
1529
.(d)~mreated Storm '\Tater.Direet diseharge oftifttreated storm water from polltitioa geaerating
ImpefVIOtiS stirfaees to grotiftd lyvater is prohibited,e~(eept for the diseharge aehieyedby iafiltration or
dispersion ofl1:lflofffrom residemial sites thro:ygh use ofoa site storm lyvater maaagement B~4Ps.
1530 (7)~iiaimum Requiremeftt No.7:Flovl Control.
1531 (a)·Ii:pplieability.
1532
1533
1534
1535
1536
(i)~low C?Btr:l.Projeats ffit-lst provide flow aOBtrol to redaee tHe iHlflaats ofstofR'l \Yater flffioff
f~om ImperYIOUS-surfaees aftd land eoy!ereonyersions.The requiremeat belov!applies toprojeets that
dlse~arge sto~v!ater direetl)\or in~ir~etly,thTo~ha eonyeyanee system,iBto fresh vlater,exeept
for diseharges Into a vietlaad.(See minimtim reqtilrement no.g for flOlll eontrol reqtiiremeBts
applieable to diseharges to vftetlands.)
1537
1538
(ii).B*effipt Are~s.Thedireetor ~petitiofl:tHe DOflat'tlBeBt ofEeology to e*effipt projeats iB
eertain areas proYilded tHose areas also meet the follovliag eriteria:
1539
1540
1541
(10 The area mtist be drained by a eon¥eyaBees)Tstemthat is eomprised emirelyofmaamade
eonyeyanee elements<{e.g.,pipes,ditehes,oNtfal1 proteetion,ete.)aftde~lteadsto the ordinary higfl
v;ater line ofthe reeeiYiliftg v!ater;aBd
1542
1543
(B)l\ny erodible elements oftHe manmade eoftyeYaBee system fOIthe area must be adequately
stabili25ed to preyeftt erosion;and
1544
1545
(C)Surfaee v/ater from tHe area must not be di¥erted from or inereased to aB e~dstiftg IYvetlaBd,
stream,or near SHore Habitat suffieient to eause a sigaifieaBt ad~"lerse imflaet.
1546
1547
1548
(b)ThTesholds.The follov/ing require eonstruetion oftlov;eomrol faeilities aftc1'or land use
tnaaagemefttB~fi>s that ,viII aehiev:e tHe staBdard requirement for vrestern WashiH:g1:oft (see stibseetion
(7)(e)ofthis seetion):
Table 14 15 050(7)(b)
Fle\v CeBtFel RefluiFemeBts lJy ThFesheld DisehaFge !.1tFea
ILJe:w OB ·Site
-CeBtFel SteFm \\'ateF ~laBagemeBt
Faeilities BMPs
Item 10 - 75
<3/4 aeres eoayersioa to I&\Vflllafldseape,or <2.5 --Iaerestopasture
>3/4 aeres eoaversioa to lavlflIlaadseape,or>2.5 -I -Iaerestopasture
<10,000 square feet ofeffeeti'fe impervious area --I
>10,000 square feet ofeffeetiveimperyious area -I -I
>0.1 eubie feet per seeoad iaerease ia tHe 100 year -I -Ifloodfrequeaey
1549 (i)Projeets ia l~vHieHtHe total ofeffeetiye imperrious surfaees is 10,000 square feet or more ia a
1550 tHresHold diseHaTge area;or
1551 (ii)ProjeetstHat eoftl/erttHree quarters aeres or more ofaatiye 'fegetatioa to lavlfl or laadseape,or
1552 eoftl/ert 2.5 aeres or more ofaative1/egetatioato pasture ia a thTesHolddisebarge area,aad from
1553 \vHieH tHere is a surfaee diseHarge ia a aatural or maamade eOftlleyaaeesystem from tHe site;or
1554 (iii)Projeets tHat tllrough a eombiaatioa ofeffeetive impefYious surfaees aad eoaverted pervious
1555 surmees,eausea 0.1 eooie feet per seeoad iaerease ia tHe 100 year flovi frequeaeyfroma tkreshold
1556 diseharge area asestiHlated usiag tHe \\'estem J,l/ashiagtoa :Hydrology ~40del or oilier model
1557 authorized by the direetor.
1558 (i't0 Thatportioa OraflY de'4zelopmeat projeet ia vlfiieh tlle abo'le thresHolds·are aot eJ(eeeded ia a
1559 tkresHold diseharge area sHall apply oa site storm v/ater maflagemeRt B~4Ps ia aeeordaaee T.vith
1560 :rrH:aimum requiremeat ao.5.
1561 (e)Staadard Requiremeat.
1562 (i)Peak Flov/s.Storm v;ater diseHarges SHall mateh developed diseharge duratioas to predeyeloped
1563 duratioas for tlle raage ofpredeyeloped diseharge rates from 50 pereeat ofthe tT.vo yearpeak flOIl;up
1564 to tHe full 50 )Zear peak flOTll.
1565 (ii)Prede1feloped Goaditioa.The prede¥eloped eoaditioa to be mateHed shall be a forested laad
1566 eover ualess reasoaable,Historie iaformatioa is provided that iadieates tHe site was prairie prior to
1567 settlemeat (modeled as"pasture"ia tHe J)lestem J)/ashiagtoa :Hydrology ~40del).THis staadard
1568 requiremeat is·v/aived for sites that v/ill reliably iafiltrate all tHe ffiaofffrom impervious surfaees aa.d
1569 eomerted ponTious surfaees.
1570 Ed)PloVI Goakol Paeility Seleetioa,Desiga,aad ~4aiBteaaH:ee.Ploy;eoBtrol faeilities SHall be seleeted,
1571 desigaed,afld maiataiaed ia aeeordaaee l.vitH tHe maaual.
1572 (e)The base of a permanent infiltration systems shall be a minimum of three feet abo>,le the
1573 seasonal high ground '.lJater mark.(e)THe base ofapermafleat iafiltratioa system shall be a :rrH:aimum
1574 ofthTee feet abo'/e tlle seasoaal high ground Y/ater mark,eJ(eept ifbioreteatioa swales or eells are used
1575 for iafiltratioa,a miaimum ofoae foot elearaf1ee betv;eea tHe bottom ofthe bioreteatioa sy/ale (or any
1576 uaderlyiag gravel layer)aad tHe seasoaal higll grouad v/ater ele'fatioa or otber permeable layer is alloTl;ed
1577 for bioreteatioa faeilities meetiag the follov;iag tributary area limitatioas:
1578 (i)Five thousand square feet ofpollution generating impervious surfaee;or
1579 (ii)Ten thousand square feet ofimpervious area;or
Item 10 - 76
1580 (iii)Three quarters acres of18:\\'l1 and landscape.
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
(8)}'4iflimum Requiremeflt}~o.8:Wetlaflds Proteotiofl.
m (a)Appl~eaeili!y.The re~emeBtsbelaw liflply aaly ta pf6.jeets whase staFmwater diseharges iBte a
.yet~~fld,eIther ~Ireotly or Ifldireotly through a OOflv:eyafloe system.These requiremems must be met ifl
additiofl to meetIflg miflimum requiremeflt flO.6,ruflofftreatmeflt.
~)Threshal~s.The threshelas iaeBtifiea ia HHaiFBUl'i'l:reE¥riremeBt ae.6,ruaeffa:eatffieflt,aaa
tnifllmUm requiremeflt flO.7,flovi oOfltrol,shall also be applied for disohargesto v/etlaflds.
(0).gtafl~ard Requ!remeflt.Disoharges to vl:etlaflds shall maifltaifl the hydrologio oOflditioflS~drophytle yegetatt,ea,aRa SHllstFate e~araete?stie~aeeessa:ry te SUfJpert existiag aaa aesige~eauses.A
.ye.tlafldoa~b~oOflslderedfor.hydrologlo·modlfioatlofl aBel/or storm v/ater treatmeflt ifl·aooordafloe vlith
guldaBoe V/ltHlfl the maBual.
(~p~aditieaal RequrremeBts.The staa~arE1 requiremeBt aeesaet exeuse aay aiseharge hemthe
ebhgat10a te liflply '.vfiate·..erteehH:elegy IS aeeessary te eemply vrith state water .qualrty staaaarE1sChapt~173 201AWA.C,er state greuaaviater staaalH'as,Chliflter 173 200VhI)"C er Si:16eesser '
r:galatlaas.£teFm water treatmeBt aaa flew eeBtrel faeilities shall aet be buill withia a aatural vegetatea
buffer,e)(oept for:fleo:ssary.ooflVejT8:flOe systems as approved by ilie direotor;or as allo\ved ifl v/etlaflds
~prevea fur hy~logle ~~fieatiea~E1Iera:eatmeat ia aeeeroaaee ....;itfl:the maaual.Aft aa8fltea aaa
Implemeflted basifl p~afl (miflimum requiremeflt flO.9),or a total ma)(imum dail:y load (T},fi)L)may be
used to dey;elop requiremeflts for wetlaflds that are tailored to a speoifio basifl.
(9)}'4i~imum~e~uiremeflt }~o.9:Basin/'A'atersHed Plaflfliflg.Projeots may be subjeot to equi¥aleflt or
mo~e.stnflgeflt mIfllmum ~equire~eflts for erosiofl oOflkol,souroeoofltrol,treatmeflt,afld..operatiofl afld
~:aaaee,aaa altematlV6 reqUlremeBts fur flew eesel aaa wetlaaas ltydrelegie eesel as icleBtifieala.b~slIl/wate~ea plaas.£!aaalH'as ~e'..ele~ea frem basia plaas shall aet medify aay eHhe aeeve
H1:1B;umm3:reqmremeBts uatd the basla plaa IS furmally aaeptea aaa implemeBtea by the erty vrithia the
basIfl,afld approY/ed or oOfl.ourred vlitH by the Departmeflt ofEoology.
(10)Miai~~quireft1~Bt Ne.10:Ofleratiea aaa MaiBteaaaee.AB eperatiea aaamaiBteaaaee
maaual that IS eeaslsteat 'N1th the maaual shall be proyicleafur all pr8flesea steFm water faeilities aad
B},4Ps,afld the perSOfl respoflsible for maiflteflafloe afld operatiofl shall be idefltified.l\t pri¥atefaoilities
a eepy efthe ~l shall be rotaiaea ea site er witllla reaseaable aeeess te the site,aaa shall be '
,trafl~ferred VlltH ~He property to the fle'.¥OVlTler.For publio faoilities,a oopy ofthe maflual SHall be
ret~laea by the alreeter er ether liflpropriate leeatiea.A legefmaiBteaaaee aetiyrty that iaaieates what
·aotloflS Vlere takefl shall be kept afld be available for iflspeotiofl by the direotor.(Ord.2476 §2,2003).
14.15.060 }'4aBdatory requiremeflts for all draiflage improy;emeflts.
(1)Ce~ae~meBt ofeoastruetioa,gradiag er site alleratiea werk uaaer aay efthe permits ef
~proYa:lshsteala M~.4C 14.15.030 shall aat begia URtil sueh time.as fiaal approval efthe steFm water
sIte plafl Has beefl graflted by the direotor or desigaee.
Item 10 - 77
1617 (2)Surfaeevrater eflteriflgtHe subjeet }9ropefty sliall be reeei¥ea attlie flaturally oeel:lTriflgl06Btiofl 8fla
1618 surface v.tMer e~titiflg tHe subject property shall be E:iiseaarged attae ~amralloeatioflvrita aaetluBte eflergy
1619 dissipaters to miflimii3e aOVrflstream aamage afla 'yvita flO aiv:ersion at any oftaese·poims.
1620 (3)'liaere open diteh conskuction is usea to handle drainage v.qtaifl tae subjeetproperty,a mifliffium of
1621 15 feet ,viII be proviaea betvieen any struetUTes and the top ofthe banle ofthe aefinea eaannel.
1622 (a)In open chaanel'yvork the viater surface elevation viill be inaicated on the plan ana profile
1623 dravrings.TheeoflfigtTFBlionofthe finishea grades eonstitutingtHe b8flks oftHe open ehaanel vrill also
1624 be.sho1yT1Tl on tHe.draVriflgS.
1625 (b}Proposed aross section oftke ehannel viill be shOVlTl v.rithstable side slopes.Siae slopes vii11 be
1626 three to one ma~tiffiUm unless stabilii3eaifl some manner approvea by the aepartffiem.
1627 (c)The lyTyruter surface eleIyratiofl ofthe aeslgB fio1ylf v/il1be inaicatea on the cross seetion.
1628 (4)J)lhere aelosedsystem isusea to hanale araiflage viithin the sUbject property,all stfUentres ,viII bea
1629 minimum of10 feetfrom the closea system.
1630 (5)The proposea measures for eontrollingrunoffaurifig cOflstfUetion ineluaing a stBtemefit inaicating
1631 the proposeastaging ofall clearing,graaing 'ana builE:iiHg aetivitles.
1632 (6)·Drainage fBeilities shallbe designea··ana eonstrueted in aecoraance viith city standaras and as
1633 airectea by the engineer.
1634 (7)\Tegetation shall be establishea on areas alsmrbea or other locations on the site to proteet
1635 viatereourses from erosion,siltation or temperah1re increases.
1636 (8)SurfBoe viater e~{iting from the subject property shallhave pollution eomrol ana oil separator
1637 deviees iastalled at tile aischarge point from tile Stibject prol'ertyv:ftendraining parkiag lots Vii-tft paved
1638 roaavray sUTfBces or hanaling contaminatea storm runoff.
1639 (9)Wllere ofJeH deteBtionlretemioB fJoHds are used tohaadle draiaage WithiB the SlibjeetfJfOfJerty a ~Q
1640 foot seiliacle is requireafrom all propertylines.This seiliaekmaybe reauced administrati1lely tMougflthe
1641 drainage plan re'/ie,v process ifit can be demonstrated that the reduction v/ill not result if}impacts on
1642 adjaeent property,such asseiliaeks,orjeopardii3ethe integrity ofthe pond or adjaeent buildings.
1643 (10)Baekground Computations for Sizing Drainage Faeilities.
1644 (a)Depietion ofthe drainage area on a topographical map,vritH aereage indicated;
1645 (b)Indications ofthe peak disellarge and amount ofsurfBce ,vater eurremly emering and leaying tHe
1646 subject property;
1647 (c)Indieation ofthe peak diseharge and·Rffiount ofrunoffv/llicll'yvill be generated v/itllthe subjeet
1648 property,ifdevelopmem is allovred to proeeed;
1649 (d)Computations sllall be prepared using using tile approIyred metllodsin tile anual.eitHer the V/estem
1650 Washington Hydrology }'40del ('AZVllD.4)orW&terv/orks sofpyT;arefor lTydrology as·deIyreloped by
Item 10 - 78
1651 Eageaious.gystems,me.Flow eoatrol afld detemioa voltiBles V/ill be eomptited usiag eoasisteat
1652 softv;arefortae develoJ3ffieat.Format shall be as direeted by J3ttblie v/orks direetor or desigaee.
1653 (11)Where the maflual eites fiye feet as the required grouad water separatioa for infiltratioa faeilities,
1654 three feet saall be used.(Ord.2478 §2,2003).
1655 14.15.062 Low impact development (LID)-Alternative drainage standards.
1656 Low impact BMPs are an alternative to conventional storm water management systems that rely on
1657 detention ponds and closed conveyance.Instead,low impact development is intended to manage runoff
1658 close to the source ofgeneration and to mimic the predeveloped hydrologic condition ofa site.This is
1659 accomplished first through minimizing the impervious surface coverage and second by managing runoff
1660 through dispersion,infiltration,evapo-transpiration,or a combination ofthese approaches.Use ofLID
1661 BMPs may reduce or eliminate the need for conventional detention facilities but does not remove the
1662 obligation to comply with the Minimum Requirements in 14.15.050.A variety ofBMPs to
1663 minimize impervious surfaces and to manage stormwater have been d~velopedand tested for use in
1664 western·Washington.These BMPs and the overall LID approach are described in the LID Technical
1665 Guidance Manual for Puget Sound.
1666
1667 The menu ofLID BMPs identified in the LID Technical Guidance Manual for Puget Sound are
1668 accepted for use in storm water site plans to address the minimum requirements for flow control and
1669 runofftreatment in MMC 14.15.060,subject to the specifications,performance standards,and design
1670 criteria in the LID Technical Guidance Manual for Puget Sound,review and approval under this chapter,
1671 Chapter 19.49 MMC,as applicable,and the requirements and limitations below.
1672
1673 (1)The city engineer may approve the following LID BMPs to meet water quality treatment
1674 requirements:
1675
1676 (a)FullDispersion.Sites that are approved for fulldispersion,consistent with the standards in the
1677 LID rechnical Guidance Manual for Puget Sound,are not requiredto provide water quality treatment.
1678
1679 (b)Bioretention.Any storm water runoffthat infiltrates through the imported soil mix in an
1680 approved bioretention facility will have received the equivalent ofenhanced treatment.Where
1681 bioretention is intended to fully meet treatment requirements,facilities shall be designed,using an
1682 approved continuous runoffmodel,to infiltrate 60 percent ofthe developed two-year peak flow.
1683
1684 (2)In additionto the requirements in MMC 14.15.065,applicants for LID BMPs shall provide a site
1685 assessment.The site assessment shall include the following,unless waived or modified by the city
1686 engineer:
1687 (a)A mapped inventory ofexisting vegetation and description oftree cover and understory;
1688
1689 (b)A mapped inventory ofwetlands and streams and required buffers under Chapter 19.24 MMC
1690 on the site;
1691
1692 (c)A survey prepared by a registered land surveyor or other licensed professional to conduct
1693 surveys showing existing development,including utility infrastructure,on and adjacent to the site,major
1694 and minor hydrologic features,including seeps,springs,closed depression areas,drainage swales,and
1695 topographic reliefat two-foot contours;
1696
1697 (d)The location ofall existing and proposed lot lines and easements;
Item 10 - 79
1698
1699 (e)A soils report by a licensed geotechnical engineer or licensed engineering geologist.The
1700 report shall identify:
1701
1702 (i)Underlying soils on the site,utilizing soil pits and soil grain analysis to assess
1703 infiltration capability.The frequency and distribution oftest pits shall be adequate to direct placement of
1704 the roads and structures away from soils that can most effectively infiltrate storm water;
1705
1706 (ii)Topographic features that may act as natural storm water storage or conveyance and
1707 underlying soils that provide opportunities for storage and partial infiltration;
1708
1709 (iii)Depth to ground water;
1710
1711 (iv)Landslide hazard areas on the site and the distance to slopes over 25 percent or
1712 landslide hazard areas within 500 feet ofthe site;
1713
1714 (f)Flood hazard areas on or adjacent to the site;
1715
1716 (g)SEPA environmental checklist.
1717
1718 (3)Additional studies maybe required to address potential impacts to down-slope properties.
1719
1720 (4)Restrictions on conversion ofdrainage·facilities shallbe recorded on the face ofthe plat.
1721
1722 (5)A covenant shall be recorded with the Snohomish Countyauditor's·office for each lot containing or
1723 served by bioretention facilities in a form approved by the city attorney.The covenant shall identify
1724 requirements and liability for preservation and maintenance oflowimpact development facilities
1725 approved under this chapter and privately held in individual or undivided ownership or intended for
1726 public ownership.
1727
1728 (6)An easement shall be granted for city access to low impact development facilities on private
1729 property to allow inspection,maintenance,and repair.(Ord.2694·§2,2007).
1730 14.15.065 Contents of a storm-water site plan.
1731 (1)Stormwater Site Plan Required.l\ll projeets for neVi developmeRt or rede¥elopm:eflt,vihiefi e~{eeed
1732 the thresholds of2,000 square feet for impervious surfaees or 7,000 square feet for land disturbanee,must
1733 prepare a storm v{atersite plan.New development and redevelopment projects must submita storm water
1734 site plan for approval by the department as set forth in 14.15.040.
1735 (2)Contents ofPlan.In addition to the requirements described in 14.15.050 and the Stormwater
1736 Manual,an Off-site Analysis report shall be required.CoRteRts ofa stonn vlatersiteplan'llill v-ary viitfi
1737 the type and size oftfie projeet and individual site eharaeteristies.TVlo major elemeRts ineluded in a stonn
1738 water site plan are a eonstruetion storm v/ater pollution prClftention plan and a permanentstorm v/ater
1739 eontrolplan.The fello\ving doeumeflts are to be iflekldedifl a stonn '.vater site plaft:
1741 (b)E~dsting eOflditioflS summary;
Item 10 - 80
1742 (e)Ofr site aflalysis report (flot fleeessary for mafll:lal eql:liY/alefley);
1743 (d)COflstruetiofl storm v/ater pollmiofl prevefltiofl plafl;
1744 (e)Permafleflt storm ViMer eomrol plafl;
1745 (0 Speeial reports afld smdies;
1746 (g)Otfter permits;
1747 (h)Operatiofl afld maiflteflaflee mafll:lal.
1748 (3)Detailed lBformatiofl ifl~4aftual.zA.ldditioflal details Ofl the eOflteflt afld the proeedures for
1749 preparatiofl ofa storm Vftater site plafl,·a eOflstruetiofl storm viater polll:ltiofl preY/efltiofl plafl,afld a
1750 permafleflt storm viater ql:lality eOfltrol plafl are iflell:lded ifl tae afll:lal.(Ord.2476 §2,2003).
1751 14.15.066 Determining Construction Site Sediment Damage Potential
1752 Any person submitting a stormwater site plan must also determine the Construction Site Sediment
1753 Damage Potential.Qualified personnel must use the rating system described in Appendix 7 oftheNPDES
1754 Phase II Municipal Stormwater Permit to determine the site's potential to discharge sediment.The
1755 damage potential rating must be submitted and approved to receive final civil plan review approval.
1756 14.15.070 Development in critical flood,drainage and/or erosion areas.
1757 Developmentwhich would increase the volume ofdischarge from the subjectproperty shall not be
1758 permitted in areas where existing flooding,drainage,and/or erosion conditions present an imminent
1759 likelihood ofharm to the welfare and safety ofthe surrounding community or property,until such time as
1760 the community hazard is alleviated.Where application ofthe provisions ofthis section will deny all
1761 reasonable use ofthe property,the director or designee may waive the restrictions on development
1762 contained in this section;provided,that the resulting development shall be subjectto all ofthe remaining
1763 terms and conditions ofthis chapter and Ch.ftf$f 19.24 MMC Critical Areas Management.(Ord.2476 §
1764 2,2003).
1765 14.15.080 Establishment of regional facilities.
1766 (1)Public Benefit.In the event that public benefits would accrue due to modification ofthe drainage
1767 plan for the subject property to better implement the recommendations ofthe comprehensive drainage
1768 plan,the director or designee may recommend that the city should assume responsibility for the further
1769 design,construction,operation,and maintenance ofthe drainage facilities,.or any increment thereof,on
1770 the subject property.Such decision shall be made concurrently withreview and approval ofthe plan.
1771 (2)Applicant's Responsibility.In the event that the city decides to assume responsibility for all or any
1772 portion ofthe design,construction,operation,and maintenance ofthe facilities,the applicant shall be
1773 required to contribute a prorated share to the estimated cost ofthe facilities;provided,that such share
1774 shall not exceed the estimated costs ofimprovements the applicant would otherwise have been required to
1775 install.The applicant may be required to supply additional information at the request ofthe director or
1776 designee to aid in such determination by the city.(Ord.2476 §2,2003).
Item 10 - 81
1777 14.15.090 Fees.
1778 Fees shall be charged for preliminary review,construction plan review,inspection,and final plan
1779 review done upon completion ofall civil work and approval ofthe final plat map.The city shall have the
1780 option ofsending plans out for review,in which case fees will also include consultant rates.(Ord.2476 §
1781 2,2003).
1782 14.15.100 Construction standards and specifications.
1783 The director shall approve,prepare,administer,and enforce detailed construction standards and
1784 specifications for all storm drainage lines,on-site storm water and erosion control facilities.(Ord.2476 §
1785 2,2003).The city shall not accept ownership or maintenance responsibility for any lines or facilities
1786 which are constructed in violation ofsaid standards and specifications.
1787 14.15.110 Review and approval ofplans.
1788 All storm water site dFaiflageplans and any other documents required by or prepared in connection with
1789 aflY oftke peffilits afldlor apf3fovals listed ifl MMC 14.15 shall be submitted for review and approval by
1790 the director or designee.(Ord.2476 §2,2003).
1791 The applicant shall keep two sets ofplans on site at all times for recording as-built information;one set
1792 shall be submitted to the project engineer,and one set shall be submitted to the Director at completion of
1793 construction and prior to final acceptance ofwork.The owner and/or contractor shall notify the project
1794 engineer and the Director when conflicts exist between the plans and field conditions.Conflicts shall be
1795 resolved (including plan and profile revisions)and resubmitted for approval prior to proceeding with
1796 construction.Forfurther plan retention and revision requirements for Stormwater Site Plans and
1797 Construction Stormwater Pollution Prevention Plans see the StormwaterManual and section 14.15.050.2
1798 Minimum Requirement #2:Construction Stormwater Pollution Prevention Plan (SWPPP).
1799 14.15.120 Inspections-Construction.
1800 All activities regulated by this chapter shall be inspected by the engineer and/or public works
1801 department.Projects shall be inspected at various stages ofthe work to determine that adequate control is
1802 being exercised.Stages ofworkrequiring inspection include,but are not limited to,preconstruction;
1803 installation ofBMPs'·land-disturbing activities;installation ofutilities,landscaping,retaining walls;and
1804 completion ofproject.When required by the director or designee,a special inspection and/or testing shall
1805 be performed.
1806 The holder ofany permit or approval issued subject to a detailed drainage plan shall arrange with the
1807 engineer for scheduling the following inspections:
1808 (1 )_-Initial Inspection._-tInspection prior to clearing and construction will apply to sites with a high
1809 potential for sediment damage,as identified by the applicant during civil review based on definitions and
1810 requirements ofAppendix 7 ofthe Western Washington Phase II Municipal Stormwater permit.
1811 (2)Grading Preparation.Whenever work on the site preparation,grading,excavations,or fill is ready to
1812 be commenced,but in all cases prior thereto;-subject also to provisions ofMMC 19.28.070.
1813 (J.~)Rough Grading.When all rough grading has been completed;
Item 10 - 82
1814 (~)Bury Inspection.Prior to burial ofany underground drainage structure;
1815 (~4)Finish Grading.When all w9rk including installation ofall drainage structures and other protective
1816 devices has been completed;
1817 (.Q§-)Planting.When erosion control planting shows active growth.
1818 (7)System wide inspections for residential developments will take place after all flow control and water
1819 quality treatment facilities are completed during the period ofheaviest house construction to identify
1820 maintenance needs and enforce·compliance with maintenance standards as needed.
1821 In some circumstances not all ofthe above inspections may be necessary.It shall be the discretion of
1822 the public works director or designee to waive or combine any ofthe above inspections as dictated by
1823 conditions.
1824 The public works director or designee shall inspect the work and shall either approve the same or notify
1825 the applicant in writing in what respects there has been failure to comply with the requirements ofthe
1826 approved plan.Any portion ofthe workwhich does not comply shall be promptly corrected by the
1827 applicant.The public works director or designee may make unscheduled site inspections to ensure
1828 compliance.Uncorrected violations will be subject to the provisions ofMMC 14.15.190.(Ord.2476 §2,
1829 2003).
1830 14.15.130 Bonds and liability insurance required.
1831 The department is authorized to require all persons constructing retention!detention or other drainage
1832 system featurestreatmem/aeatemeat faeilities to post surety or cash bonds.Where such persons have
1833 previously posted,or arerequired to post,other such bonds on the facilityitselfor on other construction
1834 related to the facility,such person may,with the permission ofthe public works director or designee,and
1835 to the extent allowable by law,combine all such bonds into a single bond;provided,that at no time shall
1836 the amount thus bonded be less than the total amount which would have been required in the form of
1837 separate bonds;and provided further,that such a bond shall on its face clearly delineate those separate
1838 bonds which it is intended to replace.
1839 (1)Construction Bond.Prior to commencing construction,the person constructing the facility shallpost
1840 a construction bond in an amount sufficient to cover the cost ofperforming said construction per the
1841 approved drainage plans.Alternatively,an equivalent cash deposit to an escrow account administered by
1842 a local account bank may be allowed at the city's option.
1843 (2)Maintenance Bond.After satisfactory completion ofthe facilities and release ofthe construction
1844 bond by the city,the person constructing the facility shall commence a two-year period ofsatisfactory
1845 maintenance ofthe facility.A cash bond to be used at the discretion ofthe city,to correct deficiencies in
1846 said maintenance affecting public health,safety and welfare,must be posted and maintained throughout
1847 the two-year maintenance period.The amount ofthe cash bond shall be determined by the public works
1848 director or designee.In addition,at the discretion ofthe city,a surety bond or cash bond to cover the cost
1849 ofdesign defects or failures in workmanship shall also be posted and maintained through the two-year
1850 maintenance.period.Alternatively,an equivalent cash deposit to an escrow account administered by a
1851 local account bank may be allowed,at the city's option.
1852 (3)Liability Policy.The person constructing the facility shall maintain a liability policy in an amount to
1853 be determined by the city which shall name the city ofMarysville as an additional insured and which shall
Item 10 - 83
1854 protect the city from any liability for any accident,negligence,failure ofthe facility,or any other liability
1855 whatsoever,relating to the construction or maintenance ofthe facility.The liability policy shall be
1856 maintained for the duration ofthe facility by the owner ofthe facility;provided,that in the case of
1857 facilities assumed bythe city for maintenance pursuant to MMC 14.15.140,the liability policy shall be
1858 terminated when the city maintenance responsibility commences.(Ord.2476 §2,2003).
1859 14.15.140 City assumption ofmaintenance.
1860 The city may assume the maintenance ofstorm water drainage system rotOfttion-,laOtOfltioft facilities after
1861 the expiration ofthe two-year maintenance period if:
1862 (1)Conveyance to the city occurred per 14.03.420.
1863 ill All ofthe requirements ofthis chapter have been fully complied with;
1864 (~J)The facilities have been inspected and approved by the department after two years ofoperation;
1865 (3)Tho surotJr bofta requirea ift ~4:~4:C 14.15.130 has beeft eJiteftded for ofte year,oov=eriftg the oity's
1866 first year ofmaimeftaftoe;
1867 (4)All necessary easements entitling the city to properly maintain the facility have been conveyed to
1868 the city.(Ord.2476 §2,2003).
1869 14.15.150 Retroactivity relating to city maintenance of drainage facilities.
1870 Ifany person constructing retention/detention facilities and/or receiving approvalofdrainage plans
1871 prior to the effective date ofthis chapter demonstrates,to the city's satisfaction,total compliance with the
1872 requirements ofthischapter,the city may,after inspection,approval,and acknowledgment ofthe proper
1873 posting ofthe required bonds as specified in MMC 14.15.130,assume maintenance ofthe facilities.(Ord.
1874 2476 §2,2003).
1875 14.15.160 Maintenance ofdrainage facilities by owner.
1876 In the event that the city elects not to assume the operation and maintenance responsibility for the
1877 facilities,it shall be the responsibility ofthe owner ofthe property,or persons with a shared ownership
1878 interest in-efthe property,or their heirs,successors and assigns,to operate,maintain,repair and replace
1879 the facilities in continuous compliance with the standards and specifications ofMMC 14.17ffte
1880 dopartftleftt.The director or designee shall have authority to periodically enter upon the property and
1881 inspect the facilities to ensure such compliance.(Ord.2476 §2,2003).
1882 14.15.165 ~4:aifttoftaftoo ofdraiftage sv;alos afta Gitoaos.
1883 For pro:visiofts relatiftgto tao maiftteftafloo ofdraift&go slyvalos afla Gitohes soe M}.4:C 14.17.030.(Ord.
1884 2476 §2,2003).
1885
1886 14.15.170 Applicability to governmental entities.
Item 10 - 84
1887 All municipal corporations and governmental entities shall be required to submit a storm water site
1888 draiB:age plan and comply with the terms ofthis chapter when developing and/or improving land within
1889 the incorporated areas ofthe city ofMarysville or within adjacent areas which may affect the city.(Ord.
1890 2476 §2,2003).
1891 14.15.175 Adjustments.
1892 All A~djustmentsto the minimum requirements in section 14.15.050 may be granted prior to permit
1893 approval and construction.Adjustments must be reviewed in the context ofeach application,site and
1894 potential impacts.Approval does not establish precedent for subsequent applications that may reflect
1895 different scale,complexity andsite conditions.lAi:fter reeeiviB:g proper vl-FitteB:applieatioB:the direetor may
1896 graB:t ftf}adjustmeB:t provided that a vli:itteB:fiB:diB:g offaet is prepared,that addresses the
1897 follov/iB:g:Adjustments to the Minimum Requirements may be granted by the director provided that a
1898 written finding offact is prepared,that addresses the following:
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
(1)The adjustment provides substantially equivalent environmental.protection.:.t-afl'd
(2)The objeetiv=es ofsafety,fufletioB:,eB:viroB:meB:tal proteetioB:aB:d fueility maiB:teB:aB:ee,based UpOB:
sound eB:giB:eeriB:g,are met.COrd.2476 §2,2003).Based on sound Engineering practices,the objectives
ofsafety,function,environmental protection and facility maintenance,are met.
14.15.180 Exceptions.
a)Exceptions to the Minimum Requirements in section 14.15.050 may be granted prior to permit
approval and construction.Exceptions must be reviewed in the context ofeach application,site
and potential impacts.Approval does not establish precedent forsubsequent applications.that may
reflect different scale,complexity and site conditions.Application for an exception shall be filed
in writing with the director and shall adequately detail the reason for an exception.
b)Exceptions/variances (exceptions)to the Minimum Requirements insection 14.15.050 may be
granted by the director following legal public notice ofan application for an exception or
variance,legal public notice ofthe director's decision on the application,and written findings of
fact that documents the director's determination to grant an exception.The City will keep records,
including the written findings of fact,ofallexceptions to the Minimum Requirements in section
14.15.050.
c)Project-specific design exceptions based on site-specific conditionsdo not require prior approval
ofthe Department ofEcology.The City will seek prior approval by the Department ofEcology
for any jurisdiction-wide exception.
d)The director may grant an exception to the Minimum Requirements in section 14.15.050 ifsuch
application imposes a severe and unexpected economic hardship.To determine whether the
application imposes a severe and unexpected economic hardship on the project applicant,the
director must consider and document with written findings offact the following:
i.The current (pre-project)use ofthe site,and
Item 10 - 85
1929 11.How the application ofthe Minimum Requirement(s)in section 14.15.050 restricts the
1930 proposed use ofthe site compared to the restrictions that existed prior to the adoption of
1931 the Minimum Requirements;and
1932
1933 iii.The possible remaining uses ofthe site ifthe exception were not granted;and
1934
1935 iv.The uses ofthe site that would have been allowed prior to the adoption ofthe Minimum
1936 Requirements in section 14.15.050;and
1937
1938 v.A comparison ofthe estimated amount and percentage ofvalue loss as a result ofthe
1939 Minimum Requirements in section 14.15.050 versus the estimated amount and
1940 percentage ofvalue loss as a result ofrequirements that existed prior to adoption ofthe
1941 Minimum Requirements in section 14.15.050;and
1942
1943 vi.The feasibility for the owner to alter the projectto apply the Minimum Requirementsin
1944 section 14.15.050.
1945
1946 e)In addition any exception must meet the following criteria:
1947
1948 i.The exception will not increase risk to the public health and welfare,nor injurious to
1949 other properties in the vicinity and/or downstream,and to the quality ofwaters ofthe
1950 state;and
1951 ii.The exception is the least possible exceptionthat could be granted to comply with the
1952 intent ofthe Minimum Requirements in section 14.15.050.
1953 EJieefltiofls to tae BTiflimum requiremeftts fBa~I be grafltedflrior tOflermitaflprO'ralafld eOflstruetioa.
1954 EJieeptiofls must bere,/ievred ia tae eOmeJit ofeaea applieatioa,site afld potefltial impaets.Appro'/al does
1955 flOt establisa flreeedem :for subsequem applieatioas !flat may refleet differeflt seale,eompleJdty aad site
1956 eOflditioflS.l\pplieatioa for afleJieeptiofl saall be filed ia vlritiag "vita tae direetor afld saall adequately
1957 detail tae reasoa for aa eJieeptioa.Tae direetor saall provide a legal.publie aotiee ofaa aPfllieatiofl:for aa
1958 eJieefltiofl,aad legal publio aotiee oftae deeisioa oa ilie applieatioa.Tae direetor may graat aa e*eefltioa
1959 fromtae requiremeats oftais ehapter pro'rided a "witteafiadiag offaet is prepared taat supports taat tae
1960 follov/iag eriteria are met:
1961 (1)Taat taere aTe speeial paysieal eireumstaaees or eoaditioas affuetiag the property suea taat tae striet
1962 applieatioa of!flese pro'risioas Vrould deprive tae applieant ofall reasoflable use oftae site ifl questiofl,
1963 and e'/ery effort to fifld ereative "Yays to meet tae imeflt oftae miaimum standards aas beefl made;afld
1964 (2)Taat taogramiflg oftae eJiecptioflS v/ill flOt be detrimefltal to tae publie aealta,welfare,aad safety,
1965 flor ifljurious to otaerproperties ifl the vieiflity aflEl/or dovlflstream,and to tae quality ofreeeivia-g 'yyaters;
1966 ftflti
1967 (3)Tae eJ(eeptioflis tae least possible eJieeptiofl taat eould be graflted to eomply v/ita tae imem oftae
1968 BTiflimum requiremeflts.(Ord.2476 §2,2003).
1969 14.15.185 Additional procedures and review.
1970 In various sections ofthis chapter,the public works director or designee,the city engineer,and/or the
1971 city planner aTemay be empowered to impose requirements,give approvals,make determinations and the
1972 like (hereinafter in this section "administrative determination(s)").Thissection sets out procedures for
Item 10 - 86
1973 administrative determination(s).AII administrative determination(s)shall be made in a timely manner to
1974 satisfy all requirements ofstate law.All administrative determination(s)shallbe in writing and shall set
1975 out facts and conclusions to support the decision made.All administrative determination(s)shall be made
1976 to achieve the purposes ofthis chapter as set eatforth in MMC 14.15.010.All administrative
1977 determination(s)may be appealed to the hearing examiner by filing written notice ofappeal with the city
1978 clerk within 10 days of service ofthe administrative determination.(Ord.2476 §2,2003).
1979 14.15.190 Enforcement.
1980 Enforcement ofthe provisions ofthis chapter shall be pursuant to MMG-Title 4 MMe.(Ord.2476 §2,
1981 2003).
1982 14.15.200 No special duty created.
1983 (1)It is the purpose ofthis chapter to provide for the health,welfare,and safety ofthe general public,
1984 and not to create or otherwise establish or designate any particular class or group ofpersons who will or
1985 should be especially protected or benefitted by the terms ofthis chapter.No provision or term used in this
1986 chapter is intended to impose any duty whatsoever upon the city or any ofits officers,agents,or
1987 employees for whom the implementation or enforcement ofthis chapter shall be discretionary and not
1988 mandatory.
1989 (2)Nothing contained in this chapter is intended to be,nor shall be,construed to·create or form the
1990 basis for any liability on the part ofthe city or its officers,..agents,and employees for any injury or
1991 damage resulting from the failure of any premises to abate a nuisance or to comply with the provisions of
1992 this chapter or by reason or as a consequence ofany inspection,notice,or order,in connection with the
1993 implementation or enforcement ofthis chapter,or by reason ofany action ofthe city related in any
1994 manner to enforcement ofthis chapter by itsofficers,agents,or employees.(Ord.2476 §2,2003).
1995 14.15.210 Severability.
1996 Ifany section,subsection,sentence,clause,phrase,orword ofthis chapter should be held to be invalid
1997 orunconstitutional by a court ofcompetent jurisdiction,such invalidity or unconstitutionality thereof
1998 shall not affect the validity or constitutionality ofany other section,subsection,sentence,clause,phrase,
1999 or word ofthis chapter.(Ord.2476 §2,2003).
2000 14.15.220 Appeals.
2001 The decision ofthe director may be appealed by an aggrieved party pursuant to MMC Title 15 to hearing
2002 examiner by filing written notice ofappeal,including an appeal fee of$500.00,with the city's public
2003 works department or community development department,within 10 days ofnotice ofthe director's
2004 decision.(Ord.2476 §2,2003).
1 Chapter 14.16 OPERATION AND MAINTENANCE OF PUBLIC STORM
2 DRAINAGE SYSTEMS CODE
3 Sections:
4 14.16.010 Purposes.
5 14 .16.015Do~volopor iBstallod storm viator fueilitios loeatod iB·eitytight ofV/ay.
Item 10 - 87
6 14.16.020 Ownership and maintenance ofpublic facilities.
7 14.16.025 Maintenance ofdraiaage sViales aad ditches.
8 14.16.030 Stormwater Facility Maintenance Standards Adopted
9 14.16.040 Maintenance ofLID facilities
10 14.16.030 CoastruetioB staBdMds aBd SfleeifieatioBs.
11 14 .16.040 COBBeetioBs required.
12 14.16.050 EnleBsioBs for full lot HOBtage.
13 14.16.062 lA...pplieatioBfor eOBBeetioB,applieatioB fee aBd issuaBee ofpeffilit.
14 14.16.070 IBspeetioBs Fees.
15 14.16.090 LimitatioBs OB stonn viaterquality.
16 14.16.100 UBla\vfuleoBtamiBatioB ofstonn viater PeBalty.
17 14.16.110 UBautkori23ed eOBBeetioBs.
18 14.16.120 Oversizing reimbursement.
19 14.16.130 Recovery contracts.
20 14.16.140-Enforcement Damage to stonn dFaiBage liBes or faeilities PeBalties.
21 14.16.010 Purpose§.
22 A public storm drainage system is a necessary utility in<the city ofMarysville for the purpose of
23 preserving the city's watercourses,minimizing water quality degradation,controlling sedimentation of
24 creeks and other water bodies,protecting properties located adjacent to developing land from increased
25 runoffrates and erosion,protecting downstream properties,preserving and enhancing the suitability of
26 waters for recreation and fishing,preserving and enhancing the aesthetic quality ofwaterways,
27 minimizing adverse effects ofalterations in.ground water qualities,locations and flow patterns,insuring
28 the safety ofcity roads and rights-of-way,and decreasing drainage-related damage to public and private
29 property.(Ord.2245 §3,1999).
30 14.16.015 Del/eloper iBstalled stOFmVfater faeilities 10eMed iB eity right ofvfay.
31 Tke eity may assume tke oper8:tioB aBd fiHl or partialma:iateB8:Bee of del/eloper iBstalled
32 reteBtion,ldetemioB or otketdTaiBage tYf'e tFeatmeBt,labMemeBt faeilities loeated iB tkeeity rigkt of\vay or
33 OB eity oVlnedproperty aftertke eKpiFatioB oftke tVio.yeM operatioB aBdma:iateBaBee period if:
34 (1)1A...ll tke requiremeBts oftkis ekapter kalite beeB fully eomplied viitk;
35 (2)Tke faeilities k8?/e beeB iBspeeted aBd approved by tke eBgiBeer after tYKO yeMs ofoperatioB.(Ord.
36 2245 §3,1999).
37 14.16.020 Ownership and maintenance of public facilities.
38 mAll storm drainage lines,facilities and appurtenances located on public right-of-way or other
39 property owned by the city shall belong to the city unless otherwise dedicated to private ownership during
40 the plan approval process and shall be maintained,repaired and replaced to the extent the city determines
41 to be in the public interest,and at the city's cost.All privately constructed extensions ofthe public storm
42 drainage lines and facilities shall be conveyed tothe city as specified in MMC14.03.420.The city may
43 accept privately constructed facilities in residential developments.All other facilities will be dedicated to
44 private ownership at the discretion ofthe director.The maintenance responsibility ofprivate facilities will
45 be born by the property owner or the persons with shared interest inthe facility as specified in Ch.14.17
46 MMC.by bill ofsale aBd shall be aeeompaaied by a viafffiflty oftke graator that said liBes aBd faeilities
47 are free ofdebt aBd were eOBstfUetediB aeeordaBee \vith eity staBdards aBd speeifieatioBs.The gramor
Item 10 - 88
48 shall further VlaITant the labor and materials used in the eonstraetionofsaid lines and faeilities for a
49 period ofone year from the date ofeonve;!anee to theeity,and shall indemnify and hold the eity hannless
50 from any damages arising from defeetilre materials orvrorlonanship.Ifa publie storm drainage line or
51 faeility is loeated on private property,the gramor shall eowrey to the eity a 10 foot vlide easemem for
52 reeonstrueting,repairing,maintaining,altering,ehanging,eomrolling and.operating said line or faeility.
53 (Ord.2245 §3,1999).
54 (2)When an inspection identifies an exceedence ofthe maintenance standard,maintenance shall be
55 performed in accordance with the following schedule:
56 -Within 1 year for typical maintenance offacilities,except catch basins.
57 -Within 6 months for catch basins.
58 -Within 2 years for maintenance that requires capital construction ofless than $25,000.
59 14.16.025 Maintenance ofdrainage s,,!ales aDd ditches.
60 For provisions relating to the maintenance ofdrainage sv/ales and ditches,see MMC 14.17.030.(Ord.
61 2245 §3,1999).
62 14.16.030 Stormwater Facility Maintenance Standards Adopted
63
64 All maintenance shall be conducted asset forth in the Stormwater Manual.Ifthe Stormwater Manual
65 does not have a maintenance standard thatapplies to a stormwater facility,then the city may use the
66 manual developed by the manufacturer ofthe facility.In all casesthe applicant shallprovide the proposed
67 maintenance program to the city for approval before construction ofthe facility occurs.
68
69 14.16.040 Maintenance ofLow Impact Development (LID)facilities
70
71 ffiThe city shall inspect approved biopetemionLID facilities on an annual basis and monitor the
72 ongoing function ofboth private and public facilities.Routine maintenance,such as trash removal,
73 weeding,mulching and pruning ofbioretention apeas and sv/alesLID facilities,shall be performed on
74 public facilities in accordance with the maintenan.ce requirements outlined in the most current edition of
75 the LID Technical Guidance Manual for Puget Sound,but at least onee yearljr or and as specified in city
76 standards,maintenance specifications,and any recorded maintenance agreements.
77 14.16.030 Construetion standards and speeifieations.
78 The publie vrorlcs direetor or designee shall prepare,administer and enforee detailed eonstruetion
79 standards and speeifieations for all storm drainage lines and faeilities v/hieh are to be eonneeted to the
80 publie storm drainage system and vl-hieh are to be publiely o'lmed and maimained.The eity shall not
81 aeeept o\Vflership or maintenanee responsibility for any lines or faeilities vrhieh are eonstrueted in
82 lriolation ofsaid standards and speeifieations.(Ord.2245 §3,1999).
83 14.16.040 Conneetions required.
84 (1)The Oliiner ofallY property v/hieh is not eonneeted to the publie storm drainage system shall be
85 required to e~dend an;!storm drainage line vl-hieh is
86 v/ithin 200 feet ofthe property,and to eonneet to anduse the same for all de:veloped portions ofthe
87 property,.under any ofthe follov/ing eireumstanees:
Item 10 - 89
88
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93
94
95
96
97
98
99
100
101
102
103
104
105
106
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120
121
(8).1I)ZS a eOflditiofl oftiflal appro\ttllofa subdivisiofl;
(e)lAJOS a eOflditiofl oftiflal approllal ofa bifldiflg site plafl for aflymobile home park eOfldomiflium
fllaHfted lHiit de¥elsflmeat,iftdustrialflark sr shsflfliag eeater;"
(d)lAz~~eOflditiofl of~flY bu~ldiflg?gFadiflg,~av~flg or other del/elopmeflt approval,iBeludiflg re230fles
or eOfl~ltloBal use pe~lts,v/RleR villI Ra'ie a Slgalfio8flt adverse impaet UPOB stOIl1i dfaiflage;as
deteIl1ilfled ey the publle v/orlcs direetor or desigaee.
(2)The pu~lie v/Ofk:S direetor or desigaee may \vaiv:e the requiremeflt ofsubseetioB·(I)oftRis seetioB
OB the follolylllflg gFouflds:
(a)Ifth~floolie wsrk.s ~ireetsf.sr desi~ee fiftds that the e!lflae1ty sr esftditisft sfthe existiftg fltlBlie
stOfftl dralflage system IS lflsuffieleflt or lfladequate to serve the subjeet property;·or
(13)Ifthe ?tlBlie warks ~ireetsr sr desigBee fiftds that:it vrsuld eause a flraetietU diffieulty ts reEJ:uire
the.eORileetl~fl ofthe subjeet property to the publie stOIl1i draiflage system 13)7 reasOfl ofeireumstaflees
vlflleh are ufllque to the property aBd flOt geflerally shared by other properties ifl the llieiflit)\
(e)Ifthe fltlBlie wsrks direetor sr desigaee finds that flrsflssed Sft site stsrm water gMPs are adeEJ:uate
uader the requiremeBts ofthis title.
W.s sueh v;alrf'er s~an be gt'!lI'lted Yfflleh v<'8uld be detrimeatal tsthefltlBlie health,safety,welfare SF
e~lrS1'lfl'l:eat,sr vAHeh wsuld b~ifte.sftsisteat 'lAth the lsag raH:ge fll!lflS fer the fltlBlie stsrm draili8:ge
s,:stem.lB all eases v/h:re a v/alv~r IS gF8fl:ted,the property OV/Ber shall be required to strietly eomply
v/lth stOIl1i v/ater reteBtloa/detefltloB requiremeBts ofChapter11..:.12 ~G.4G.
The deeisisa,sfthe fl~lie w~rks direet~r sFdesigBee regardil1g suehViai'rers shan be final,subjeet ts
!lflfleal ts the.el~eOOH:ed;flrs¥lded,that 1ft eases vmere a flr8fJerty swfter has !lflfllied fer de¥elsflmeat
approl/al v/hleh IS to ee ruled UpOfl by the eity eouaeil itself,viai'/ers referred to hereiB shall ee
deteIl1iifled by the eity eouBeil after takiBg iBtO eOBsideratioB the reeommeBdatioB ofthe eity eBgifleer.
(Ord.2245 §3,1999).
14 .16.050 E~{teBsiofls for full lot froBtage.
:\llheBe1/er ~property oVlller desires to eonneet to the publie stOIl1i dfaiBage system,the property ovroer
shall be requl~ed to e~deBd.the stOIl1i draiflage lifles for the full frofltage ofilie lot vihieh is beiBg
es~eeted.IfIt e!lfl be ~S'Hll:that.ftS fHture ex~eftsisfts beysftd said 1st vAn se6tH',a wai¥er may be
ob~alfled from t~e publle viorks dlreetor or deslgaee afld the O\Vfl:er Beed oBly eKtefld the liBe to the Bearest
POlBt ofeoRfleetloBoBthe lot.(Ord.2245 §3,1999).
14.16.060 fJOpplieatiofl for eOflfleetiofl,applieatiofl feeafld issuaflee ofpefftlit.
Item 10 - 90
122 The o:v/ner ofany property desiring to eonneet to thepublie stonn drainage s)lstem shall apply for the
123 eonneetion on sueh fonns as may be prepared and made ayailable by the eity publie VftOrkS department.
124 The applieation shall inelude,at a minimum,a drawing shoyyvingthe eomplete on site drainage system
125 v/hieh v/ill be eonneeted to the publie stonn drain.lALn applieation fee of$50.00 shall be paid to tlie eity
126 elerl(.Upon approval oftlie applieation by tile publie v/orks direetor or desigaee,a eonneetion permit
127 shall be issued \vhieh sliall be '/alid for a period ofSlJ{months tliereafter.(Ord.2245 §3,1999).
128 14.16.070 Inspeetions Fees.
129 lALll eonneetions to tile publie stonn drainage system shall be inspeeted by tlie eity engineer.ill the e'lent
130 that a stonn drainage line is to be deeded to tlie eit)\the party eonstrueting tlie same sliall pay the eity an
131 inspeetion fee of$0.25 per lineal foot.l'Jo line or faeility shall be aeeepted by the eity until all inspeetion
132 fees li8?le been paid and until the eity engineer eertifies that tlie same lia'/e been eonstrueted in aeeordanee
133 v/ith eity speeifieations.(Ord.2245 §3,1999).
134 14.16.090 Limitations on stonn viater quality.
135 No substanee otlier tlian natural stonn ,vater drainage shall be diseharged into tlie publie stonn drainage
136 system.lALll ,vater so diseliarged shall meet the viater quality eriteria and 'Naste diseharge limitations
137 imposed by the eity engineer andlor tlie \11ashington8tateDepartmentofBeolog)\(Ord.2245§3,1999).
138 14.16.100 Unlav/ful eontamination ofstonn,vater.Penalty.
139 No person or business entity sliall viillfully or negligently diseharge,or eause or allovl to be diseliarged,
140 any substanee or pollutant into tile publie storm drainage system in violation ofthe v/ater qualit)T eriteria
141 and Vftaste diseliarge limitations speeified by tlie eity engineer and/or the Washington State Department of
142 Beology.lAd1Y sueh diseharge shall eonstitute a misdemeanor and shall be punishable by imprisonment for
143 a term not toe~{eeed si~{montlis,orby a fine not to e~{eeed$500.00,or both sueh fincand imprisonment.
144 (Ord.2245 §3,1999).
145 14.16.110 Unauthorized eonneetions.
146 (1)It is unla:v/ful for any person to make a eonneetionto the publie stonn drainage system in '/iolation
147 oftliepro'lisions.ofthis ehapter.l ALv/illful 'liolation shall eonstitute a misdemeanor,and shall be
148 punisliable by a fine not to e~{eeed $500.00.Baeli day tilat a 'liolation eontinues shall eonstitute a separate
149 offense.
150 (2)l\n:y person \\110 shall make or cause to be made an unauthorii!ied connection to the public
151 storm drainage s)Tstem shall be required to immediately bring the connection into.conformity
152 lllith all pro1/isions ofthis chapter,and the application fee shall be doubled as a penalty
153 assessment.(Ord.2245 §3,1999).
154 14.16.120 Oversizing reimbursement.
155 In all cases the public works director or designee shall determine the size and depth ofextensions to
156 public storm drainage lines,whether they are on public or private property.The determination shall be
157 consistent with the city's long-range plans for a regional storm drainage system.Ifa property
158 owner/developer is required to install a storm drainage line with a diameter in excess of 18 inches,and if
159 the purpose for such oversizing is to provide for future extension ofthe storm drainage line to adjacent
Item 10 - 91
160 properties and not merely to meet the needs ofthe property responsible for constructing the line,the city
161 shall reimburse the property owner/developer for the difference in material costs incurred solely by reason
162 ofthe oversizing requirement.No such reimbursement shall be made except upon the following:complete
163 installation ofthe storm drainage line and approval ofthe same by the public works director or designee;
164 a submittal ofa bill ofsale and a warranty for the storm drainage lilJ.e to the city;certification ofthe
165 oversizing costs,with such verification from the material supplier and contractor as the public works
166 director or designee may require;approval ofthe oversizing costs by the public works director or
167 designee;and approval ofthe reimbursement by the city council.(Ord.2245 §3,1999).
168 14.16.130 Recovery contracts.
169 At the option ofthe city council,any party having constructed public storm drainage lines,facilities or
170 appurtenances,at its own cost,may be allowed to enter into a recovery contract with the city providing
171 for partial reimbursement to such party,or its assignee,for the costs ofsuch construction,including the
172 costs ofengineering and design work,and all costs oflabor and materials reasonably incurred.Such
173 contracts shall be governed by the following provisions:
174 (1)Within 30 days after a storm drainage line or facility is accepted by the city and a bill of
175 sale/warranty is filed with respect to the same,the proponent ofthe recovery.contract shallsubmit a
176 request for the same,using a form supplied by the city,together with supporting documentation showing
177 all costs incurred in the project.
178 (2)An assessment area shallbe formulated based upon a determination by the'city as to which parcels
179 ofreal estate will be directly benefited by the.iline or facility.In the case ofregional storm drainage
180 facilities,a similar analysis shall be made with respect to allparcels within the drainage basin as defined
181 by the city.
182 (3)The reimbursement share ofallproperty owners.in the assessment area shall be a pro rata share of
183 the totaLcost ofthe project,less any contributions paid by the city.Each reimbursement share shall be
184 determined by using a method ofcost apportionment which is based upon the benefit received by each
185 property from the project.This will generally be prorated on a front-footage basis for storm drainage
186 lines.There shall be no reimbursement to the proponent for the share ofthe benefits which are allocated
187 to its property.
188 (4)A preliminary determination ofthe area boundaries and assessments,along with a description ofthe
189 property owner's rights and obligations,shall be forwarded by certified mail to the property owners of
190 record within the proposed assessment area.Ifany property owner requests a hearing in writing within 20
191 days ofmailing ofthe preliminary determination,a hearing shall be held before the city council,notice of
192 which shall be given to-all affected property owners.The city council's ruling shall be determinative and
193 final.
194 (5)The contract,upon approval by the city council,shall be recorded in the records ofthe Snohomish
195 County auditor within 30 days ofsuch approval.The recorded contract shall constitute a lien against all
196 real property within the assessment area which did not contribute to the original cost ofthe utility project.
197 (6)If,within a period of 15 years from the date the contract was recorded,any property within the
198 assessment area applies for connection to the storm drainage line,or is developed or improved in such a
199 manner as to use or impact the drainage facility,the lien for payment ofthe property's proportionate share
200 shall become immediately due and payable to the city as a condition ofreceiving connection or
201 development approval.
Item 10 - 92
202 (7)All assessments collected by the city pursuant to a recovery contract,less the city's administrative
203 charge,shall be paid to the original proponent,its personal representative,successors or assigns within 30
204 days after receipt by the city.The city's administrative charge·for each collection is set forth in MMC
205 14.07.005.
206 (8)At the termination ofthe 15-year recovery period the lien shall continue,but all collections
207 thereafter shall·be for the benefit ofthe city and shall be deposited in the city's utility fund.
208 (9)Nothing in this section,nor any provision in a recovery contract,shall be construed as establishing
209 the city as a public utility in areas not already connected to the city's utility system;nor shall this section,
210 or any recovery contract,be construed as establishing express or implied rights for any property owner to
211 connect to the city's utility system without first qualifying for such connection by compliance with all
212 applicable city codes and ordinances.(Ord.2780 §2,2009;Ord.2245 §3,1999).
213 14.16.140_-Enforcement Damage to storm drainage lines or faeilities Penalties.
214 No person or business entity shall willfully or by abuse or neglect cause any damage to lines or
215 facilities ofthe public storm drainage system..Such acts or omissions shall constitute a misdemeanor and
216 shall be punishable by criminal fine and imprisonment or by civil penalties,as setforth in Title 4 MMC.
217 by imprisonment for a term not toexeeed Sill months,or by a fine not to exeeed $500.00,or byboth sueh
218 fine and imprisonment.Further,ifthe eity repairs or replaees the damaged property,the aetual eost to the
219 eity for sueh repair or replaeement,plus 10 pereent,shall be assessed against the responsible party and
220 shallbe due and payable Ylithin 10 days ofthe date ory/Fitten notiee ofthe same.Delinquent bills may be
221 eolleeted by.a eiyil aetion in the ~4arys¥illemunieipal.eourt.Ifthe eity obtains judgment,it shall also be
222 entitled to reimbursement.:For eourt eosts and reasonable attorney's fees ellpended in the litigation.(Ord.
223 2245 §3,1999).
1 Chapter 14.17 OPERATION AND MAINTENANCE OF PRIVATE STORM
2 DRAINAGESYSTEMSPRI'':t\TE 8J:()Rl\{"\\':l~JlTERDI8P()8I\L8Y8TE1\{8
3 Sections:
4 14.17.010 Duty to maintain
5 14.17.020 Minimum storm water facility maintenance standards
6 14.17.030 Maintenance ofdrainage s'llales,biofiltration s'.vales,and ditches
7 14.17.035 Maintenance ofbioretention LID facilities
8 14.17.040 Inspection by city
9 14 .17.050·}lotifieatiofl ofO'l/fler
10 14.17.060 Serviee ofnotiee
11 14 .17.070 Failure to eorreet City aetion
12 14.17.080 Reeord ofassessment
13 14.17.080 Enforcement
14 14.17.090 Exemptions
15 14.17.100 No special duty created
16 14.17.110 Severability
17 14.17.010 Duty to maintain.
18 It shall be the duty ofthe property owner to maintain,repair and renew,at htsthe owner's own expense,
19 all private storm water disposal systems located on htsthe property or within an area ofshared interest
Item 10 - 93
20 owned in common with other property owners.Should private storm water facilities not be maintained in
21 accordance with city standards,then the city may choose to perform the necessary maintenance and
22 charge the property owner or property owners',lassociation.Alternatively,;-ef the city may pursue other
23 legal options,includingcondemnillg the property as a health and safety nuisance and acquiring assume
24 ownership thereof.(Ord.2245 §4,1999).
25 14.17.020 Minimum storm water facility maintenance standards.
26 The following are the minimum standards for the maintenance ofstorm water facilities:
27 (1)It shall be the duty ofthe owner to maintain,repair and restore,at the owner's expense,all private
28 storm water and drainage systems located on the owner's property or within an area ofshared interest
29 owned in common with other property owners.Maintenance shall be performed in accordance with the
30 Stormwater Manual miflimumfequiremeflts ofthis ehapter and in accordance with any maintenance
31 schedule or approved maintenance manual for the facility that was adopted during the plan review process
32 for constructing the facilities.
33 (2)No person shall cause or permit any drainage system located on the owner's property to be
34 obstructed,filled,graded,or used for disposal ofdebris.
35 (3)}'4:iflimUffl requiremeats for the maiflteflaaee ofstorm ViMer faeilities shall iaelude but flOt be limited
36 to the folloviiflg:
37 ill(a)fJ:flflual iaspeetiofl,upoa request ofthe publie vjorks direetor or desigHeeInspection Ffrequency
38 fsshall be as specified in the Stormwater Manual orapproved maintenance manual.Records ofthe
39 inspection shall be retained on site or by the owner or administrator ofthe facility.Ifrecords are
40 requested bythe director,&response is required within 90 days;
41 (b)RemoYliflg brush,¥egetatiofl,debris ead other bloekage;
42 (e)ReHlOYliflg sedimeftt,silts,sands,and gravels;
43 (d)Remoyiflg oils,grease,tars and oilier pollutams;
44 (e)Repairiflg afld replaeiflg damaged faeilities as required;and
45 (t)lAJ:11 other aetivities fleeessary to eflStire the faeilities are operatiag as desigBed.
46 (4)Vegetated storm water facilities,such as grassed swales and biofilters,shall be inspected,mowed
47 and replanted as required by the Stormwater Manual or other applicable maintenance manual as set forth
48 herein.
49 (~)When an inspection identifies an exceedence ofthe maintenance standard,maintenance shall be
50 performed in accordance with the following schedule:
51 -Within 1.year for typical maintenance offacilities,except catch basins.
52 -Within 6 months.for catch basins.
53 -Within 2 years for maintenance that requires construction ofless than $25,000.
Item 10 - 94
54 fQl.Disposal ofwaste from maintenance activities shall be conducted in accordance with Chapter 173-
55 304 WAC,Minimum Functional Standards for Solid Waste Handling;guidelines published bythe
56 Washington State Department ofEcology for disposal ofwaste materials from storm water maintenance
57 activities;and where appropriate,Chapter 173-303 WAC,Dangerous Waste Regulations.(Ord.2245 §4,
58 1999).
59 14.17.030 Maintenance ofdrainage s"rftles,hiafiltFftHaB s,vftles,ftBdditches.
60 (1)Open drainage sv;ales and ditches vlhieh are located on private property or(and often loeated within
61 public drainage easementsj shall be cleaned,maintained and protected in continuous compliance with the
62 standards and specifications ofthe city.Responsibility for such workshall be borne by the owner ofthe
63 underlying property;provided,thatthe city shall bear such responsibility for regional drainage ditches
64 and faeilities,as determined by the director ofthe department ofpublic works,ifthe same are publicly
65 owned or within public easements which are accessible to city personnel.Any party may appeal a
66 determination ofthe director in this regard to the city council,and the decision ofthe city council shall be
67 final.
68 (2)'legetated·storm waterfaeilities,sueh as grassed svrales aftd biofilters,.shall be iftspeeted semi
69 anflUally aftd movved aftd replaftted as required by thepublie 'yvorks direetoror desigaeemaflUal.Clippiftgs
70 shall be removed aftd properly disposed of.
71 (2.;')No person shall cause or permit open drainage slyvales aftd ditches to be obstructed,filled,graded
72 or used for disposal ofdebris.
73 _(4)The eity shall enforee the prollisions ofthis seetionpursuant to the proeedures speeified in ~4}.4C
74 14.17.040 thTough 14.17.080.
75 (1~)Upon receiving express approval from the director ofthe department ofpublic works,a property
76 owner may convert a drainage slyvale or ditch into.an enclosed drainage system.Such work shall be
77 performed in compliance with the standards and specifications ofthe city and shall be subject to
78 inspection and approval by the department ofpublic works.Culverts and drainage appurtenances installed
79 by private owners shaY-may be conveyed to the city,at no cost,by a bill ofsale.(Ord.2245 §4,1999).
80 14.17.035 Maintenance of hiaFeteBtiaBLow Impact Development -.£LIDl.facilities.
81 (1)Bioretefttioft eells aftd s'YvalesApproved LID facilities,which are located on private property or in
82 public street rights-of-way but dedicated to private ownership,shall be cleaned,maintained and protected
83 in continuous compliance with Title 14 MMC,the standards and specifications ofthe city.1 and any
84 recorded maintenance agreements.Responsibility for such work shall be borne by the owner ofthe
85 underlying property orparties with shared ownership interest.or,in the ease·offaeilities v;ithift the publie
86 right ofv;ay,responsibility for sueh v/ork shall be borne b)T theeity.
87
88 (2)Property owners shall inspect and maintain approved bioretefttion LID facilities aftflUally.Routifte
89 maifttenanee sueh as trash remol/al,'Needing,·mulehiftg aftd pruniftg ofbioretemionareas and slyT/ales shall
90 be performed in accordance with the maintenance requirements outlinedset forth in the most·current
91 edition ofthe LID Technical Guidance Manual for Puget Sound as needed,but at least onee yearly or as
92 specified in said manual and in city standards,maintenance specifications,and-er any recorded
93 maintenance agreements.
94 (3)The eity shall iftspeet approved bioretentioft faeilities Oft aft aftflUal basis and moftitor the oftgoiftg
95 funetion ofboth private aftd publie fueilities.RoutiftQ maimeftanee sueh as trash remol/al,lyveediftg,
Item 10 - 95
96 muloaiBg aBd fJfUf1iBg ofbioreteBtioB areas aBd·sYyl/ales saall be fJerfefffied OBfJublio ·faoilities iB
97 aooofdaBoe v/itfi tfie maimeBaBoe re€):uiremeBts outliBed ia tfie mostourrem editiof}oftae LID TeefH9:ioal
98 Guidaf}oe ~4aBual fef PttgetSol:lftd aSf}eeded,but at least OBoe yearly Of as sfJeoified if}oity staBdards,
99 tB£liBteBaBoe sfJeoifioatioBS,or aftY reoorded maimeBaflOe agreemoms.
100 (4)No fJersoB saall oause or fJermit bioretemioB areas to be obstfUoted,filled,graded,Of used for
101 diSjJosal ofdebris.
102 (1~)Ifan approved LID facility required to be maintained by a private property owner fails to perform
103 as designed due to lack ofmaintenance,the city has the authority to perform the necessary maintenance".
104 and to-tlftti recoup the costs incurred from the property owner directly or by liening the property,and to
105 revoke any surface water fee discounts given for the LID facility OB surfuoe v/ater fees.
106 (6)Tae oit)r saall eBforoe tfie fJrovisions oftais seotioB pursuaBt to tae fJrooeduros sfJeoified iB ~~4C
107 14.17.040 througft 14.17.080.(Ord.2694 §4, 2007).
108 14.17.040 Inspection by city.
109 (1)The public works director or designee is directed and authorized to develop an inspection program
110 for storm water facilities in the city ofMarysville.PerSOBs Of oooufJa-ats oftae site saall allovi any
111 autaoriZied representative oftae.eBgiBeer aooess at all reasoBable times.to all parts oftae premises fur tfie
112 fJUFfJose ofiBSjJeotioB,samfJliBg,aBd feoord examiBatioBS.
113
114 (2)Inspection Schedule~The public works director or designee may establish a master inspection and
115 maintenance schedule to inspect appropriate storm water facilities that are not owned by the city.
116 InsfJeotioBs saall be aBf1Ual.Critioal storm v/ater faoilities tB£ly re€):uire a more fre€):ueBt iBSfJeotioB
117 soaedule.
118 (3)Inspection and Maintenance Records.As existing storm water facilities are encountered,they shall
119 be added to the master inspection and maintenance schedule.Records ofnew storm water facilities shall
120 include the following:
121 (a)As-built plans and locations.
122 (b)Findings offact from any exemption granted by the local government.
123 (c)Operation and maintenance requirements and records ofinspection,maintenance,actions and
124 frequencies.
125 (d}Engineering reports,as appropriate.(Ord.2245 §4,1999).
126 (4)As a condition ofapproval ofstormwater facilities,property owners or occupants ofthe site shall
127 allow any authorized representative ofthe engineer access at all reasonable times to all parts ofthe
128 premises for the purpose ofinspection,sampling,and record examinations.
129 14.17.080 Enforcement
130 Enforcement ofthe provisions ofthis chapter shall be as set forth in Title 4 MMe.
Item 10 - 96
I I
14.17.070 Failm=e to eorreet City.
Ifai:TY sueh 19F01gerty OWfler who has beefl so ftotifieEl fails,for the ~erioEl o~time desigB:.at~~ifl su~h
notiee to repair or maintain the f9ri\Tate StOfffl viater disposal system In questIon,the publle .nOrlffi dlreetor
or Elesigaee shall 19roeeeEl to eause sueR r6]Jairs or maiflteflaRee to be 1ger~FFB:eEl'lJ.190fl ~flg the
fleeessary repairs or maiflteH:aflee,the sU19eriflteflEleflt shaH r6]Joft t~the el:ty eOUfletl at I:ts fle*~gular
meeting,or as soon thereafter as possible,an assessmem roll ShOY/lng the lot or pareel ofland ivhere the
14.17.060 Serviee ofnotiee.
Serviee ofthe flotiee 19roviEleEl fer ifl MMG 14.17.050 shaH be deemeEl suffieieflt i~ElelivereEl ifl19ersofl to
the O'W'i'ter ofthe 19F01gerty or his autliorizeEl ageflt;or by l~aviflga e019~~f sueh ftottee ~the ho~.ofthe
onTHer or his authori:t:ed agent;or ifthe o\vner is a nonresIdent,by maIlIng a eopy to hIS last kno i.11
addiOess,by eertifieEl mail;or ifthe O'W'i'ter ofthe 19ro1gerty be Ufllrn:O'~or ifhi~aEl~ss be Ul'lkn0v.:a,thefl
sueh notiee shall be addressed to the general delivery offiee ofthe 6lty ymereln the Improvement IS to be
made.(Ord.2245 §4,1999).
(Ord.2245 §4,1999).
DATED this day of ,19_.
SuperiiHendent,~4arys:ville Street
Department
Deserif9tion)
YOU ARE I-IBREBY NOTIFmDaREl iftstrueteEl to (repair or maifltaiR)th~19rivate storm ':~er Elis190sal
system loeated on the abo:ve deseribed property,by fgerfofffling the folloY/lng aets:(Desenptlon)
Said viork is to be eompleted y/ithin __._Elays from aRB after the serviee ofthis.flotiee.IH:e~se ofyOUi'
iailure to eom191ywith this flotiee,saiEl ...fork will be Elefte by aREl UflEler the autlionty ofthe Gl:ty of
Marysville,at the eXj3eflse ofsaiEl19ro1gefty,aBel the east aaEl elf1geflse the.reof eh~~El to you aaEl beeome a
lien upon said f9rofgerty in aeeordan6e Yiith Ch8:}9ter 1iJ1ofthe ~4arys¥ille ~4unlelpal Code.Th&t
foHowiflg e0lH:flletiofl ofthe work by the eity ofMarysviH~,ifflee~ssary,a r6]Jo~shaH be maEle to :ae
City Couneil at its regular meeting to be held at City HallIn the CIty of~4arys¥11Ie on the .day of
19 &t the hour of8:00 f9.m.on said date,aBd an assessment shall be prof9osed ShOYilng double
-th-e-e-o-st-;fther6]Jairs or maiflteflB:flEle Elofle Oft the 19rivate ~orm ~later EliSflosal system Ofl your 19ro1gerty,
aBd thereupon the COUBeil Y/ill hear ai:TY or all protests agaInst saId f9rof9osed assessment
4.17.050 NatifieatiaB afaWBeF.If apri¥&te StOfffl viater disposal system is fou~d by the eity to be in .
eed ofrepair or maintenanee,tee publieviorksdireetor ordesigtiee shallsenetl~th~prepert)T ~Vlfl:er In
fn-ting,by using a notiee·eomaining a minimum ofthe follovRng elementsaBd beIng In substaBtlally the
ollowing fOfffl:
}tOTICE TO (RBPl\IR OR ~ft\RttTf.t]}t)PR..TJl1A.tTE STOR}.4 Vll\TER DISPOSl\L SYSTE~4
LOC1A.tTED O}tTHE FOLLOJ.l/]}tG DESCRIBEDPRB~4ISES:
1
n
•~
(
3
5
6
7
162
16
164
16
16
16
156
157
158
159
160
161
155
151
152
153
154
150
141
142
143
144
145
146
147
148
149
140
137
138
139
135
136
131
132
133
134
Item 10 - 97
168 repair or maimeBaBee Vi;as maee,the eost ofBUehrepair ormaimeBaBee eetermiBed at tViieethe eity's
169 aetualeosts,aBd the Bame ofthe OVlfleF,iflmoVlil.The eity eOUfleilv/il1 hear aBy orall proteMs agaiBst
170 the proposed assessmeBt at the time Bamee iB the Botiee.The eouBeil shall proeeee at BUeh heariBg,or at
171 aB aejoumee time or titnes,to assess the eosts ofsueh,vork agaiBst the property iB aeeoreaflee viitft the
172 beBefits deriJtee therefrom,vihieh eharge shall beeome a lieB upOB the propert)l aBd shall be eolleeted by
173 due proeess of18\v.The paelle ViOrkS direetor or eesigBee shall file ,vith said assessmem roll a eOflY of
174 sueh ftotieo,vlith proofofserviee ofthe same.(Ord.2245 §4,1999).
175 14.17.080 Reeore ofassessmem.
176 The eity elerk shall keefl ift his offiee a viell bOUfle book ift ,vhieh he shall eater aft abstraet ofall
177 assessmeBt rolls filed ia ae60rdaBee vtith this ehaflter,shovtiftg a eeseriptioB ofilie flroperty,the Bame of
178 the OVliler thereof,the totaleost eharged to eaeh O'l/Tier,aBe the date ofthe filiBg ofthe assessmeBt roll,
179 aBe v/heB aBy property is elearee ofthe lieB by paymeBt,he shall Bote the faet UflOB BUeh book,'Nith the
180 date ofpaymeBt.(Ord.2245 §4,1999).
181 14.17.090 Exemptions.
182 (1)Storm water.facilities owned and maintained by the Washington State Department ofTransportation
183 in state highway rights-of-way which are regulated by and meet the requirements ofChapter 173-270
184 WAC,the Puget Sound Highway RunoffProgram,are exempted from the requirements ofthis chapter.
185 (2)Except as specified by covenant or other instrument recorded on the title ofadjacent property,storm
186 water facilities located in city ofMarysville rights-of-way shall be maintained by the city and are
187 exempted from the requirements ofthis chapter.
188 (3)Requests for exemption shall be filed in writing with the public works director or designee and shall
189 adequately detail the basis for granting an exemption.
190 (4)The decision ofthe public works director or designee concerning a request for an exemption shall be
191 made in writing for review ofthe city council.
192 (5)The decision ofthe public works director or designee,as to an exemption or denial thereof,may be
193 appealed to the city council by filing written notice ofappeal with the city clerk within 10 days ofservice
194 ofthe public works director or designee's decision.(Ord.2694 §4,2007;Ord.2245 §4,1999).
195 14.17.100 No special duty created.
196 (1)It is the purpose ofthis chapter to provide for the health,welfare,and safety ofthe general public,
197 and not to create or otherwise establish or designate any particular class or group ofpersons who will or
198 should be especially protected or benefitted by the terms ofthis chapter.No provision or term used in this
199 chapter is intended to impose any duty whatsoever upon the city or any ofits officers,agents,or
200 employees for whom the implementation or enforcement ofthis chapter shall be discretionary and not
201 mandatory.
202 (2)Nothing contained in this chapter is intended to be,nor shall be,construed to create or form the
203 basis for any liability on the part ofthe city or its officers,agents,and employees for any injury or
204 damage resulting from the failure ofany premises to abate a nuisance or to comply with the provisions of
205 this chapter or be a reason or a consequence ofany inspection,notice,or order,in connection with the
Item 10 - 98
206 implementation or enforcement ofthis chapter,or by reason ofany action ofthe city related in any
207 manner to enforcement ofthis chapter by its officers,agents,or employees.(Ord.2245 §4,1999).
208 14.17.110 Severability.
209 Ifany section,subsection,sentence,clause,phrase,or word in this chapter should be held to be invalid
210 orunconstitutional by a court ofcompetentjurisdiction,such invalidity orunconstitutionality thereof
211 shall not affect the validity or constitutionality ofany other section,subsection,sentence,clause,phrase,
212 or word ofthis chapter.(Ord.2245 §4,1999).
Item 10 - 99
1 Chapter 14.18 REGIONAL STORMWATERDRAINAGE8T()Rl\fWi·...TER
2 DRAINl·...(;E A88E881\fENT8 IN (;ERTI\IN DE8I(;l\L.,l...TED DR{Ul\L.,l...(;E
3 Bl·...8IN8
4 Sections:
5 14.18.010 Purpose.
6 14.18.020 Drainage basins defined.
7 14.18.030 Drainage basin facilities plans.
8 14.18.040 Inflation factor.
9 14.18.050 Assessments on properties outside ofcity limits.
10 14.18.060 Construction ofregional drainage facilities.
11 14.18.070 Reimbursement rights.
12 14.18.080 Payment ofdrainage assessments.
13 14.18.Q90Appeals.
14 14.1g.l00 fJ:lleB Creek draiBage basiB.
15 14.18.110 Marysville area regional storm water ponds and conveyance systems.
16 14.18.010 Purpose.
17 In areas ofthe city which are largely undeveloped,but where future growth is anticipated,it is possible
18 to do advance planning for regional storm water drainage facilities on a basin-wide basis.In such cases
19 the preferred location ofsuch regional facilities may be predetermined,and the cost ofconstructing the
20 same may be equitably assessed against private property owners within the affected drainage basin at the
21 time new development projects are proposed.The concept offinancing public works projects with
22 mitigation assessments paid by developers who are causing the need for such projects is consistent with
23 the State Environmental Policy Act (Chapter 43.21C RCW and Chapter 18.20 MMC),and RCW
24 82.02.020.(Ord.2245 §5,1999).
25 14.18.020 Drainage basins defined.
26 Drainage basins to which this chapter shall apply may belocated in whole,or inpart,within the
27 Marysville city limits.They shall be identified and defined by the city engineer,and adopted by reference
28 by resolution ofthe city council.(Ord.2245 §5,1999).
29 14.18.030 Drainage.basin facilities plans.
30 The public works director or designee,in con-junction with engineers ofadjoining jurisdictions which
31 may share drainage basins with the city ofMarysville,shall develop a storm water drainage facilities plan
32 for each identified drainage basin and any sub-basins located therein.Such plans shall predetermine the
33 location and size ofany proposed retention/detention ponds ofregional significance,and the location and
34 size ofall drainage pipes and channels ofregional significance.The acquisition and construction cost of
35 such facilities shall be estimated,and shall be apportioned by an assessment formula against all
36 undeveloped property in the drainage basin which may be expected to contribute storm water to the
37 regional system at the time such property is developed.The assessment formula shall be based upon an
38 average impact analysis,but shall be subject to change on a case-by-case basis ifan exceptional impact or
39 lack ofan impact is proven with respect to a particular project.The facilities plan for each basin shall be
40 adopted by reference,byresolution ofthe city council.The assessmeftt formula for eaeh basiB aad sub
41 basiB shall be adopted by ordiBaaee ofthe eity eouBeilaBd ifleorporated ifltO this ehapter.(Ord.2245 §5,
42 1999).
Item 10 - 100
43 14.18.040 Inflation factor.
44 Ifcertain regional drainage facilities are not constructed for a period ofseveral years after the plan for
45 the same is prepared and adopted,it is possible that the cost estimates ofthe public works director or
46 designee,and the assessment formula based thereon,will require adjustment to reflect the inflation factor.
47 Ifthis is the case,the assessment formula may be amended by ordinance ofthe city council;provided,
48 that no such amendment shall retroactively apply to any property which has already paid its assessments
49 to the city.(Ord.2245 §5,1999).
50 14.18.050 Assessments on properties outside of city limits.
51 Because the city has no jurisdiction to levy its assessments against properties which are located within a
52 portion ofa drainage basin which is outside ofthe city limits,the city shall attempt to enter into interlocal
53 agreements with Snohomish County which require the county to pay the city an amount equivalent to the
54 assessments for such properties.Such interlocal agreements shall be reciprocal,and in cases where the
55 regional drainage facilities are located in a portion ofa basin which is outside ofthe city limits,the city
56 will agree to pay the county an amount equivalent to the assessments which it has collected from property
57 owners within the city's portion ofthe basin.(Ord.2245 §5,1999).
58 14.18.060 Construction of regional drainage facilities.
59 Regional drainage facilities identified in an adopted plan shall be constructed as follows:
60 (1)If such facilities are needed before the property on which they are to be located is ready for a private
61 development project,the city shall purchase or otherwise acquire the necessary land or easements for the
62 construction ofsuch facilities.Ifthe facilities are to be located on·propertywhich is then being proposed
63 for a development project,dedication ofthe necessary land or easements shall be a required condition of
64 the development project.The reasonable cost ofacquisition and/or dedication ofland and easementsfor
65 regional drainage facilities shall be reimbursed as provided below.
66 (2)Construction ofregional drainage facilities shall be scheduled by the public works director or
67 designee to meet the needs ofthe sub-basin in question.Ordinarily such construction will be performed
68 by the developer ofthe property on which the facilities are to be located as a condition ofa development
69 project.If,however,facilities are needed in a sub-basin before the property on which they are to be
70 located is proposed for a development project,the city engineer may require developers ofother
71 properties within the sub-basin to construct the facilities as a condition oftheir projects.·In the discretion
72 ofthe city engineer,regional drainage facilities may be constructed,or upgraded,in stages by a series of
73 parties as the sub-basin develops.Any party constructing such a facility shall be reimbursed for the
74 reasonable costs thereofas provided 'below.
75 (3)Construction ofregional drainage facilities shall be subject to allprovisions ofChapters 14.15 and
76 14.16 MMC,except that provisions for reimbursementofthe reasonable costs thereofshall be superseded
77 by this chapter.(Ord.2245 §5,1999).
78 14.18.070 Reimbursement rights.
79 A party who constructs regional drainage facilities required by an adopted storm water drainage plan
80 shall be entitled to reimbursement ofthe reasonable costs thereof,including the reasonable value ofany
81 land on which a retention/detention pond is located,on the following terms and conditions:
Item 10 - 101
82 (1)The facilities must have been installed and completed in compliance with requirements ofChapter
83 14.15 MMC and/or 14.16 MMC,and conveyed to the city ofMarysville.
84 (2)The party shall certify in writing all acquisition,engineering and construction costs·incurred and
85 actually paid by him,and shall supply such verification as may be required by the public works director
86 or designee.
87 (3)Reimbursement shall be allowed for the cost ofoversizing regional drainage lines over 18 inches in
88 diameter,and the cost ofmaking comparably sized open channel improvements.Such reimbursement
89 shall apply only to material costs,not labor,and shall have a maximum limit of$15.00 per foot.The
90 public works director or designee may deny oversizing reimbursement in cases where the size ofthe lines
91 or channel improvements is required by on-site development conditions,and not by regional
92 considerations.
93 (4)The final reimbursement amount,as determined bythe public works director or designee,shall be
94 paid by the city to the party constructing the drainage facilities,or his assigns.Funds used for such
95 payments shall be assessments collected by the city from property owners within the subject sub-basin
96 during the period offive years prior to the date on which the facilities were accepted bythe city,and
97 during the period of 15 years thereafter.The city shall deduct an administrative charge of$50.00 each
98 time a reimbursement check is issued.Under no circumstances shall the city be liable for reimbursements
99 in amounts greater than the total assessments which it has collected from the subject sub-basin.Ifany
100 assessments are collected by the city more than 15 years after the drainage facilities are constructed,or if
101 any assessments have not been disbursed within said period oftime,the same·shall be kept by the city and
102 deposited in the city's growth management fund.
103 (5)A party constructing all or any part ofapproved regional drainage facilities at its own cost,or
104 dedicating land for the same,shall be granted a credit agaillstdrainage assessments which it owes with
105 respect to property located in the subject sub-basin for the reasonable cost of such facilities and/orJand,as
106 determined by the city engineer.There shall be no right to reimbursement for the amount ofsaid credit.
107 (6)Ifthe city has acquired land and/or constructed drainage facilities at its own cost,it shall be entitled
108 to reimbursement from the assessments collected from the subject sub-basin,as ifit were a private
109 developer,and such assessments shall be deposited in the city's growth management fund.
110 (7)In the event that more than one party has constructed regional drainage facilities in a single sub-
111 basin,and each ofsaid parties has been certified by the city engineer as being entitled to reimbursement
112 from assessments collected by the city from property owners within that sub-basin,reimbursements shall
113 be paid on the basis ofchronological priority.The first drainage facilities which were approved by the
114 city shaJI be reimbursed in full before any payments are made for subsequent facilities constructed in the
115 same sub-basin.(Ord.2245 §5,1999).
116 14.18.080 Payment ofdrainage assessments.
117 Drainage basin assessments in the amount specified in this chapter shall be paid by a property owner
118 upon the first ofthe following events to occur:
119 (1)As a condition offinal approval ofa subdivision;
120 (2)As a condition offinal approval ofa short subdivision;
Item 10 - 102
121 (3)As a condition offinal approvalofa binding site plan for any mobile home park,condominium,
122 planned unit development,industrial park or shopping center;
123 (4)As a condition ofanybuilding,grading,paving or other development approval which impacts
124 drainage runoff.
125 If,after paying an assessment,a parcel ofproperty is rezoned,replatted or otherwise more intensively
126 developed,the assessment shall be recalculated,giving the owner credit for assessments previously paid.
127 (Ord.2245 §5,1999).
128 14.18.090 Appeals.
129 Any party aggrieved by a decision ofa city employee in the administration ofthis chapter may appeal
130 said decision to the city council.The decision ofthe city council shall be final.(Ord.2245 §5,1999).
131 14.18.100 PJlen'Creek drainage basin.
132 By Resolution No.1100 adopted by tfte oity oounoil on July 11,1983,a stormvlater drainage plafl for
133 the l\llen Creek Drainage BasinlNas appro¥ed.Suoh planoontains sub basins lAiO tllrough J.By Resolution
134 No.1159 adopted by the oity oounoilon }.{aroh 11,1985,an interlooal agreement vlith Snohomish Couftty
135 v/asappro1led relating to oost sharing fur those sub basiflsvlhieh are partly in the city and partly in the
136 oounty.The follolyvingassessments are adopted fur all properties vlithintfte oity limits vlhichare inoluded
137 in the PAlen Creek Drainage Basin,and aBy ofits sub hasins:
138 (1)Single family residential property:$450.00 per single famil)T house or duplex.
139 (2)piOgrioultuTal property,parks Bfld open space:$0.00,but $425.00 vlill be assessed for the total ofall
140 normal aooessory buildings'on the property,if&RjT.
141 (3)~{ultiple residential property:$2,835 per aore,but not less tftan $425.00.
142 (4)Business,oommercial and industrial propert)r:$3,035 peraore,but not less than $425.00.(Ord.2245
143 §5,1999).
144 14.18.110 Marysville area regional storm water ponds and conveyance systems.
145 In addition to any other requirements ofthe Marysville Municipal Code,and in particular Chapters
146 14.16 and 14.18 MMC,the following policies,procedures and priorities are hereby established for
147 connection'to and use ofall Marysville area regional storm water ponds and conveyance systems which
148 are now or hereafter constructed by the city ofMarysville:
149 (1)Regional storm water ponds and conveyance systems shall only be used to receive waters from
150 commercial or industrial development on properties bearing the zoning designations ofcommunity
151 business,general commercial,mixed use,light industrial or business park.
152 (2)Connection to and discharge into any regional storm water pond and conveyance system shall not be
153 made,until the applicant has been issued a building permit for commercial or industrial development on a
154 property bearing one or more ofthe zoning designations referenced in subsection (1)ofthis section.
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155 (3)All regional storm water ponds and conveyance systems have a limited capacity.Acceptance ofan
156 application and discharge into the system shall be contingent upon available capacity.Applications shall
157 be given priority based upon the date the initial deposit has been received as referenced in subsection (5)
158 ofthis section by the city.
159 (4)A fee for connection to all regional storm water drainage facilities shall be established by the city
160 engineer.Said fee shall be determined by calculating the total cost ofthe detention facility and dividing
161 said cost by the cubic feet ofas-built capacity.Total cost shall include land acquisition,design,
162 construction,construction management,city staffoverhead and environmental/ecological mitigation.
163 (5)All properties qualifying to connect to a regional storm water drainage facility shall pay a
164 nonrefundable 10 percent deposit for the connection fee at the time ofcity receipt ofan application for
165 connection to the regional storm water facility following the effective date ofthe ordinance codified in
166 this section.Said application shall describe the property to be served by the regional storm water facility,
167 the proposed development,and the storage volume requested.An additional 10 percent refundable deposit
168 shall be paid at the time ofcity receipt ofany building permit application on the described property which
169 must be within 120 days ofthe city receipt ofthe approved regional pond application or right to capacity
170 within the storm water drainage facility shall be forfeited.The balance ofthe fee shall be paid at the time
171 ofissuance ofthe first building permit for the property to be served.Ifa building permit has not been
172 issued within 120 days ofthe city receipt ofa building permit application the right to capacity within the
173 storm water drainage facility shall be forfeited.The city may grant a time extension ofup to 120 days for
174 building permit if substantial progress has been made by the applicant to complete design and
175 construction plans to receive permit approval.
176 (6)l'~ofttraflsforability.lA.cll rights oOflforrod by this soOtiOfl shall inuro solely to the de:velopmeflt
177 applioaftt and shall flOt be traflsforable,sold,assigaed or ifl aflY v/ay oOfl¥ejZed to aflr third party.Said
178 rights shall flOt fUfl v/ith the lafld afld shall inure solely to the beflefit ofthe de¥elopmeftt applioaflt.(Ord.
179 2552 §1,2004).
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