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UTILITIES COMMITTEE
Monday, March 23, 2015
4:30 p.m.
1. AGENDA
a. Approval of the final S. 132nd St. Sewer Extension Special Assessment District No. 0047
b. NPDES Phase II Municipal Stormwater Permit & Stormwater Management Program Plan
c. Update on the Natural Yard Care Program
Utilities Committee - 23 Mar 2015 https://renton.civicweb.net/filepro/document/39674/Utilities Committee ...
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CITY OF RENTON COUNCIL AGENDA BILL
Subject/Title:
NPDES Phase II Municipal
Stormwater Permit and Stormwater
Management Program Plan Briefing
Meeting:
REGULAR COUNCIL - 23 Feb 2015
Exhibits:
Issue Paper
Stormwater Management Program
Plan
Submitting Data: Dept/Div/Board:
Public Works
Staff Contact:
Ron Straka, Surface Water Manager, ext. 7248, Edward Mulhern,
Surface Water Engineer, ext. 7323
Recommended Action:
Refer to the Utilities Committee
Fiscal Impact:
Expenditure Required: $ N/A Transfer Amendment: $N/A
Amount Budgeted: $ N/A Revenue Generated: $N/A
Total Project Budget: $ N/A City Share Total Project: $ N/A
SUMMARY OF ACTION:
The City of Renton’s Surface Water Utility has completed the required Stormwater Management
Program (SWMP) Plan to meet the City of Renton’s Western Washington Phase II Municipal Stormwater
Permit (Permit) obligations. This SWMP Plan is required to comply with the Permit that covers
stormwater discharges from City-owned or operated storm sewers.
Federal and state water quality laws require a permit for the discharge of stormwater. The Permit
includes the City’s SWMP Plan with implementation items that include the following requirements:
1. Public education and outreach
2. Public involvement and participation
3. Illicit discharge detection and elimination
4. Controlling runoff from new development, redevelopment and construction sites
5. Municipal operations and maintenance
The SWMP plan is posted on the City’s website along with a request for public input.
STAFF RECOMMENDATION:
N/A; Information Only
PUBLIC WORKS DEPARTMENT
M E M O R A N D U M
DATE:February 9, 2015
TO:Ed Prince, Council President
Members of the Renton City Council
VIA:Denis Law, Mayor
FROM:Gregg Zimmerman, Administrator
STAFF CONTACT:Ron Straka, Surface Water Engineering Manager, x7248
SUBJECT:NPDES Phase II Municipal Stormwater Permit and
Stormwater Management Program Plan Briefing
ISSUE:
Surface Water Utility staff requests the opportunity to brief the Utilities Committee on
the National Pollutant Discharge Elimination System (NPDES) Phase II Permit and City’s
Stormwater Management Program (SWMP) Plan. The City of Renton’s Surface Water
Utility has completed the required SWMP Plan to meet the obligations of the City of
Renton’s Western Washington Phase II Municipal Stormwater Permit.
STAFF RECOMMENDATION:
This is an informational briefing only.
BACKGROUND:
Federal and state water quality laws require a permit for the discharge of stormwater
(Federal Water Pollution Control Act Title 22 United States Code, Section 1251 et seq.,
State Water Pollution Control Act RCW 90.48).
In 1987, Congress amended the federal Clean Water Act to address municipal
stormwater discharges through the NPDES permits. The Washington State Department
of Ecology (Ecology) is responsible for issuing and renewing these permits. In 2007,
NPDES Municipal Stormwater permits were issued in Washington for Phase I and Phase
II jurisdictions. Phase I permits were issued to large municipalities and county
governments with populations over 100,000 (as of the 1990 census). Phase II permits
were issued to smaller governmental entities generally with populations between
10,000 and 100,000. The City of Renton is covered under Western Washington’s Phase
II Municipal Separate Stormwater Sewer System (MS4) NPDES permit (Phase II Permit).
Discharges from MS4s (systems designed to collect and convey stormwater runoff) are
regulated by Ecology under the NPDES program. The municipal NPDES permit seeks to
Ed Prince, Council President
Page 2 of 2
February 9, 2015
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control or reduce pollutant discharge to the maximum extent practicable, primarily
through programmatic efforts. The City is regulated by Ecology as a Phase II permittee.
The Phase II Permit became effective on February 16, 2007, was modified in 2009, and
expired on February 15, 2012. Ecology extended the 2007-2012 Phase II Permit
requirements until July 2013. A new 2013-2018 Phase II Permit with updated
requirements was issued on August 1, 2012, and became effective on August 1, 2013.
The Permit requires the City to develop and annually update a SWMP. The Phase II
Permit lists specific actions and activities the City must implement through the SWMP,
include the following components:
1.A public education and outreach program designed to reduce or eliminate
behaviors and practices that cause or contribute to adverse stormwater impacts
and encourage the public to participate in stewardship activities.
2.A process for involving the public in the development, implementation and
update of the SWMP.
3.An ongoing illicit discharge detection and elimination program to prevent,
detect, characterize, trace and eliminate illicit connections and illicit discharges
into the MS4.
4.A program to reduce pollutants in stormwater runoff from new development,
redevelopment and construction site activities.
5.An operation and maintenance program to prevent or reduce pollutant runoff
from municipal operations.
In addition to the five components listed above, the SWMP plan also includes a
discussion of the monitoring and reporting requirements of the Phase II Permit.
CONCLUSION:
The Phase II Permit requires that the City prepare written documentation of the SWMP
to inform the public of the planned SWMP activities, and to update that documentation
annually no later than May 31 each year. The City’s updated SWMP plan satisfies this
requirement. The SWMP plan is posted on the City’s web site along with a request for
public input.
Attachments
cc:Lys Hornsby, Utility Systems Director
Edward Mulhern, Surface Water Engineer
STORMWATER MANAGEMENT PROGRAM
PLAN
CITY OF RENTON MUNICIPAL STORMWATER PROGRAM
Prepared for
City of Renton
Prepared by
Herrera Environmental Consultants, Inc.
Note:
Some pages in this document have been purposely skipped or blank pages inserted so that this
document will copy correctly when duplexed.
STORMWATER MANAGEMENT PROGRAM
PLAN
CITY OF RENTON MUNICIPAL STORMWATER PROGRAM
Prepared for
City of Renton
1055 South Grady Way
Renton, Washington 98057
Prepared by
Herrera Environmental Consultants, Inc.
2200 Sixth Avenue, Suite 1100
Seattle, Washington 98121
Telephone: 206/441-9080
January 28, 2015
CONTENTS
Introduction and Background ............................................................................. 1
Public Education and Outreach ........................................................................... 3
2013–2018 Phase II Permit Requirements .......................................................... 3
Planned and Recommended Activities ............................................................. 3
Public Involvement and Participation ................................................................... 7
2013–2018 Phase II Permit Requirements .......................................................... 7
Planned Activities ..................................................................................... 7
Illicit Discharge Detection and Elimination ............................................................. 9
2013–2018 Phase II Permit Requirements .......................................................... 9
Planned Activities ..................................................................................... 9
Controlling Runoff from New Development, Redevelopment, and Construction Sites .......... 11
2013–2018 Phase II Permit Requirements ......................................................... 11
Planned Activities .................................................................................... 11
Municipal Operations and Maintenance ................................................................ 15
2013–2018 Phase II Permit Requirements ......................................................... 15
Planned Activities .................................................................................... 15
Total Maximum Daily Load Requirements .............................................................. 17
2013–2018 Phase II Permit Requirements ......................................................... 17
Planned Activities .................................................................................... 17
Monitoring .................................................................................................. 19
2013–2018 Phase II Permit Requirements ......................................................... 19
Planned Activities .................................................................................... 19
Reporting ................................................................................................... 21
2013–2018 Phase II Permit Requirements ......................................................... 21
Planned Activities .................................................................................... 21
APPENDICES
Appendix A Internal Coordination Mechanisms
i
sw ca 14-05864-000 renton swmp plan.docx
TABLES
Table 1-1. Planned Public Education and Outreach Activities. ................................. 4
Table 1-2. Recommended Public Education and Outreach Activities. ......................... 5
Table 2-1. Planned Public Involvement and Participation Opportunities. ..................... 7
Table 3-1. Planned Illicit Discharge Detection and Elimination Activities. ................... 10
Table 4-1. Planned Activities to Control Runoff from New Development,
Redevelopment, and Construction Sites. ............................................. 12
Table 5-1. Planned Municipal Operations and Maintenance Activities. ....................... 16
ACKNOWLEDGEMENTS
Funding for the SWMP Plan was provided by a Municipal Stormwater Capacity Grant from the
Washington State Department of Ecology.
ii
sw ca 14-05864-000 renton swmp plan.docx
INTRODUCTION AND BACKGROUND
In 1987, Congress amended the federal Clean Water Act to address municipal stormwater
discharges through the National Pollution Discharge Elimination System (NPDES) permits. In
Washington State, the Washington State Department of Ecology (Ecology) is responsible for
issuing and renewing these permits. In 2007, NPDES Municipal Stormwater permits were issued
in Washington for two groups of permittees: Phase I jurisdictions and Phase II jurisdictions.
Phase I permits were issued to large municipalities and county governments with populations
over 100,000 (as of the 1990 census). Phase II Permits were issued to smaller governmental
entities generally with populations between 10,000 and 100,000. The City of Renton (City) is
covered under Western Washington’s Phase II Municipal Separate Stormwater Sewer System
(MS4) NPDES permit (Phase II Permit).
Discharges from MS4s (systems designed to collect and convey stormwater runoff) are
regulated by Ecology under the NPDES program. The municipal NPDES permit seeks to control
or reduce pollutant discharge to the maximum extent practicable, primarily through
programmatic efforts. The City is regulated by Ecology as a Phase II permittee. The Phase II
Permit became effective on February 16, 2007, was modified in 2009, and expired on
February 15, 2012. Ecology extended the 2007–2012 Phase II Permit requirements until July
2013. A new permit with updated requirements (2013–2018 Phase II Permit) was issued on
August 1, 2012 and became effective on August 1, 2013. For fiscal year 2015 (July 1, 2014,
through June 30, 2015), the City was charged an annual permit fee of $50,024 by Ecology.
This annual fee will likely increase with future Phase II Permit updates.
The Phase II Permit requires the City to develop a Stormwater Management Program (SWMP).
The SWMP must include the following components:
1. A public education and outreach program designed to reduce or eliminate behaviors
and practices that cause or contribute to adverse stormwater impacts and encourage
the public to participate in stewardship activities
2. A process for involving the public in the development, implementation, and update of
the SWMP
3. An ongoing illicit discharge detection and elimination (IDDE) program to prevent,
detect, characterize, trace, and eliminate illicit connections and illicit discharges into
the MS4
4. A program to reduce pollutants in stormwater runoff from new development,
redevelopment, and construction site activities
5. An operation and maintenance (O&M) program to prevent or reduce pollutant runoff
from municipal operations
January 2015
City of Renton Stormwater Management Program Plan 1
In addition, the Phase II Permit requires that the City prepare written documentation of the
SWMP and update that documentation annually. This SWMP plan satisfies this requirement. In
addition to the five components listed above, this SWMP plan also includes a discussion of the
monitoring and reporting requirements of the Phase II Permit. This SWMP plan also includes a
description of the City’s internal coordination mechanisms as required by S5.A.b
(Appendix A).
January 2015
2 City of Renton Stormwater Management Program Plan
PUBLIC EDUCATION AND OUTREACH
The City’s public education and outreach program currently includes a wide range of
educational brochures for a variety of audiences. The City partnered with the Environmental
Coalition of South Seattle (ECOSS) to provide stormwater spill kits and spill response
education training to small businesses in 2014 and 2015. The City also has a drain marker
volunteer program. This section describes the Phase II Permit requirements related to Public
Education and Outreach, including the City’s planned compliance activities.
2013–2018 Phase II Permit Requirements
Section S5.C.1 of the 2013–2018 Phase II Permit requires the City to develop and implement a
public education and outreach program. Education and outreach efforts shall be prioritized in
the following areas:
1. Provide an education and outreach program to build general awareness, and effect
behavioral change, that selects from the following target audiences:
a. General public (including school age children)
b. Engineers, contractors, developers, and land-use planners
c. Businesses (including home-based and mobile businesses)
d. Residents, landscapers, and property managers/owners
2. Create stewardship opportunities and/or partner with existing organizations to
encourage residents to participate in activities such as stream teams, storm drain
marking, volunteer monitoring, riparian plantings and education activities.
3. Measure the understanding and adoption of the targeted behaviors for at least one
target audience in at least one subject area.
4. Use results to direct education and outreach resources most effectively (no later than
February 2, 2016) as well as to evaluate changes in adoption of targeted behaviors.
Planned and Recommended Activities
Table 1-1 summarizes the City’s planned activities associated with Public Education and
Outreach. Table 1-2 summarizes recommended public education program elements that the
City may initiate depending on available staffing and funding.
January 2015
City of Renton Stormwater Management Program Plan 3
Table 1-1. Planned Public Education and Outreach Activities.
Activity Tasks Lead
Proposed Schedule
or Frequency
Special recycling events Coordinate two collection events for
household hazardous wastes such as
oil, antifreeze, oil filters, and batteries.
Solid Waste
Division
May and September
2015
Partner with local
Hazardous Waste
Management Program
City provides Natural Yard Care
Program classes in English and
Spanish that teach yard care strategies
to eliminate reliance on pesticides,
herbicides and chemical fertilizers.
Solid Waste
Division
Fall 2015
King County Salmon
Watcher Program
Participate as a host municipality for the
King County Salmon Watcher program.
Water Utility
Division
Fall 2015
Business education and
outreacha
Partner with ECOSS to provide spill kits
and spill response education/ training
for restaurants.
Surface Water
Utility (SWU)
Engineering
December 31, 2015
Participate in STORM
(the Regional NPDES
Education and Outreach
Forum)
Consider participation in STORM
program and promoting the Puget
Sound Starts Here campaign
messaging.
SWU Engineering Ongoing
Volunteer Storm Drain
Marker Program
Coordinate citizen volunteers to mark
stormwater drains.
SWU Engineering Ongoing
WRIA 8 and WRIA 9 Partner with WRIA 8 Salmon Recovery
Council and WRIA 9 Watershed
Ecosystem Forum.
Water Utility
Division
Ongoing
Aquifer Protection
Program
Provide water quality and conservation
education, e.g., booklets distributed to
businesses: Employee Training for
Aquifer Protection, and Shop Guide for
Dangerous Waste Management.
Water Utility
Division
Ongoing
Evaluate and modify
Public Education and
Outreach Program
Measure the understanding and
adoption of a targeted behavior. Modify
the evaluated public education program
to address the results of the evaluation.
SWU Engineering February 2, 2016
a This planned public education and outreach activity also can be used to meet S5.C.3.c.iv – informing public employees, businesses, and the general public of hazards associated with illicit discharges and improper disposal of waste.
January 2015
4 City of Renton Stormwater Management Program Plan
Table 1-2. Recommended Public Education and Outreach Activities.
Activity Tasks Lead
Proposed Schedule
or Frequency
Expand educational
materials available
through existing programs
and streamline
stormwater outreach
messaging and public
handouts
• Integrate stormwater public
education and outreach into
existing Public Works programs.
• Develop consistent stormwater
outreach messaging among
various City departments.
• Combine handouts based on
target audiences and eliminate
handouts with redundant
information.
SWU Engineering TBD (depending on
funding and staffing)
Update website Consider reorganizing City website so
that information can be found more
easily.
SWU Engineering TBD (depending on
funding and staffing)
Promote community
stewardship
Encourage community involvement with
stream teams, stormwater monitoring,
or riparian planting.
SWU Engineering TBD (depending on
funding and staffing)
Expand Adopt a
Neighborhood Program
Evaluate the addition of a stormwater
BMP component to the City’s Adopt a
Neighborhood Program.
SWU Engineering TBD (depending on
funding and staffing)
Add a stormwater
component to the
Citizen’s Academya
Consider adding a surface water/storm
component to the “Citizen’s Academy”
that emphasizes IDDE topics and
maintenance.
SWU Engineering,
Citizen’s Academy
TBD (depending on
funding and staffing)
Car wash kits Provide car wash kits for groups
holding charity car wash events.
Water Utility
Division
To be continued
(depending on
funding and staffing)
Develop and circulate
new public education
materialsb
Consider developing an illicit discharge
handout, mailing handouts to single-
family residences, and providing
relevant handouts at pre-application
meetings.
SWU Engineering TBD (depending on
funding and staffing)
Illicit discharge education
and outreachb
Consider developing a brochure or
handout to provide to companies that
respond to spills associated with
automobile accidents.
Interdepartmental
Team
TBD (depending on
funding and staffing)
TBD = to be determined
a Citizen’s Academy is a City program designed to education City residents and business owners in how the Public Works Department operates.
b This planned public education and outreach activity also can be used to meet S5.C.3.c.iv – informing public employees, businesses, and the general public of hazards associated with illicit discharges and improper disposal of waste.
January 2015
City of Renton Stormwater Management Program Plan 5
PUBLIC INVOLVEMENT AND PARTICIPATION
Public input is important to the development and implementation of the SWMP. The City
actively solicits public participation by making stormwater information available for review
and providing opportunities for comment. This section describes the Phase II Permit
requirements related to public involvement, including planned compliance activities.
2013–2018 Phase II Permit Requirements
Section S5.C.2 of the 2013–2018 Phase II Permit requires that the City shall create
opportunities for the public to participate in the decision-making processes involving the
development, implementation, and update of the SWMP, and comply with applicable state and
local public notice requirements. The two main components include:
1. Developing and implementing a process for consideration of public comments on the
City’s SWMP
2. Posting the Annual Report and the SWMP Plan, on the City’s website no later than
May 31 of each year (note: no Annual Report is required to be submitted in 2014).
Planned Activities
Table 2-1 summarizes the City’s planned activities associated with public involvement and
participation.
Table 2-1. Planned Public Involvement and Participation Opportunities.
Activity Tasks Lead Proposed Schedule or Frequency
Revise SWMP Plan Update SWMP Plan with planned
activities for 2015.
SWU Engineering Update SWMP Plan
in January 2015; post
on City’s website by
May 31, 2015
Prepare and submit
Annual Report to Ecology
Prepare and submit Annual Report;
submittal should include SWMP Plan
and other supplemental documentation
(if applicable).
SWU Engineering March 31, 2015
Public involvement in the
SWMP
Solicit feedback on website. SWU Engineering Ongoing
January 2015
City of Renton Stormwater Management Program Plan 7
ILLICIT DISCHARGE DETECTION AND ELIMINATION
An illicit discharge is defined as any discharge into the stormwater system that is not
composed entirely of stormwater, or of non-stormwater discharges allowed as specified in the
Phase II Permit. Illicit discharges may be from a variety of sources and activities including
illegal dumping, sanitary sewer overflow, swimming pool cleaning, and incidental spills (such
as oil, gas, diesel fuel, paints, or solvents). This section describes the Illicit Discharge
Detection and Elimination (IDDE) Phase II Permit requirements, as well as the City’s planned
compliance activities.
2013–2018 Phase II Permit Requirements
Section S5.C.3 of the 2013–2018 Phase II Permit requires the City to include an ongoing IDDE
Program designed to prevent, detect, characterize, trace, and eliminate illicit connections
and illicit discharges into the stormwater system. The specific Phase II Permit requirements
are as follows:
1. Continuing mapping of the MS4 on an ongoing basis.
2. Publicize a public hotline number for reporting of spills and other illicit discharges;
and track all calls and follow-up actions taken.
3. By February 2, 2018, adopt an updated ordinance that effectively prohibits non-
stormwater, illegal discharges, or dumping into the City’s stormwater system to the
maximum extent allowable by state and federal law.
4. By December 31, 2017, complete field screening of 40 percent of the stormwater
system. After December 31, 2017, the City is required to complete field screening on
an average of 12 percent of the stormwater system per year.
5. Implement an ongoing program designed to address illicit discharges, including spills
and illicit connections, which includes procedures for characterizing the nature and
potential threats of an illicit discharge, procedures for tracing the source of an illicit
discharge, and procedures for eliminating the discharge.
6. Implement an ongoing IDDE staff training program.
7. Distribute information to public employees, businesses, and the general public of the
hazards associated with illicit discharges and improper disposal of wastes.
Planned Activities
Table 3-1 summarizes the planned activities associated with the City’s IDDE program.
January 2015
City of Renton Stormwater Management Program Plan 9
Table 3-1. Planned Illicit Discharge Detection and Elimination Activities.
Activity Tasks Lead
Proposed Schedule
or Frequency
Illicit discharge education
and outreach
Develop a new outreach approach for
addressing illicit discharges associated
with exposed aggregate driveway
projects.
SWU Engineering,
Development
Engineering,
Building
Inspectors
December 31, 2015
Illicit discharge and illicit
connection field
screening
Develop drainage basins associated
with each branch of the catch basin
network as a basis of evaluation for the
field screening requirement.
SWU Engineering,
Stormwater (SW)
Maintenance
December 2015
Update storm system
mapping
Verify Parks Department storm system
mapping. Continue to work with King
County to gather storm drainage system
information for annexed areas. Update
mapping with newly constructed
facilities and newly discovered facilities.
SWU Engineering,
SW Maintenance,
Airport,
Parks/Golf,
Facilities
Ongoing
Illicit Discharge Program
Plan implementation
Implement Illicit Discharge Program
plan requirements.
SWU Engineering,
Community and
Economic
Development
(CED)
Development
Engineering,
CED Construction
Inspectors,
CED Building
Inspectors,
CED Code
Compliance,
Fire Department,
Parks/Golf,
Airport,
SW Maintenance
Ongoing
Staff training Refresher training on IDDE general
awareness and IDDE response.
Interdepartmental
Team
Ongoing
Illicit discharge and illicit
connection field
screening
Implement a field screening
methodology (or methodologies) to
meet the field screening requirement.
SW Maintenance,
Parks/Golf,
Facilities, Airport
Perform field
screening on 40% of
the storm system by
December 31, 2017
Illicit discharge ordinance Incorporate minor modifications into the
illicit discharge ordinance for
consistency with the permit.
SWU Engineering February 2018
January 2015
10 City of Renton Stormwater Management Program Plan
CONTROLLING RUNOFF FROM NEW DEVELOPMENT,
REDEVELOPMENT, AND CONSTRUCTION SITES
The Development Services Division is responsible for permitting, inspection, and code
enforcement actions for construction-related activities in the City. The Surface Water Utility
Engineering Division is responsible for the private stormwater facility inspection program. This
section describes the Phase II Permit requirements related to controlling runoff from new
development, redevelopment, and construction sites, including planned activities.
2013–2018 Phase II Permit Requirements
Section S5.C.4 of the 2013–2018 Phase II Permit requires the City to develop and implement a
program to reduce pollutants in stormwater runoff from new development, redevelopment,
and construction activities. The specific Phase II Permit requirements are as follows:
1. Implement an ordinance or ordinance revision that addresses runoff from new
development, redevelopment, and construction sites and adopt Ecology’s Stormwater
Management Manual for Western Washington, or equivalent, by December 31, 2016.
Include provisions to verify adequate long-term operation and maintenance (O&M) of
stormwater treatment and flow control BMPs/facilities.
2. Review all stormwater site plans for proposed development activities.
3. Conduct inspections of construction sites prior to clearing and construction, during
construction, and upon completion of construction.
4. Conduct annual inspections of all stormwater treatment and flow control
BMPs/facilities that discharge to the stormwater system and were permitted by the
City since 2007 (unless maintenance records justify a reduced inspection frequency).
5. Ongoing training program for staff responsible for implementing the program to
control stormwater runoff from new development, redevelopment, and construction
sites.
6. Review, revise, and make effective local development-related codes, rules, standards,
or other enforceable documents to incorporate and require LID principles and LID BMPs
by December 31, 2016. Submit a summary of the results of the review and revision
process with the annual report due no later than March 31, 2017.
Planned Activities
Table 4-1 summarizes the City’s planned activities associated with controlling runoff from
new development, redevelopment, and construction sites.
January 2015
City of Renton Stormwater Management Program Plan 11
Table 4-1. Planned Activities to Control Runoff from New Development,
Redevelopment, and Construction Sites.
Activity Tasks Lead Proposed Schedule or Frequency
Single family residential
requirements
Revise the building permit
requirements pertaining to work on
driveways and exposed aggregate.
CED Development
Engineering and
SWU Engineering
June 2015
Stormwater site plan
review
Develop additional tools (checklists
and sizing tables) for implementation of
stormwater site plan review.
CED Development
Engineering
December 2015
Public education and
outreach
Add minimal excavation foundations
and compost amended soils to the
BMP list in the Residential Building
Permit Drainage Review Handout.
CED Development
Engineering
December 2015
Permit requirements
outreach
Consider incorporating permit
requirements and thresholds and
distributing the CED – Instructions for
Small Lot Drainage Requirements
handout to property owners.
CED Development
Engineering
December 2015
Staff training Pursue training opportunities for plan
review and inspection staff.
CED Planning Ongoing
Stormwater site plan
review
Review all stormwater site plans for
proposed development activities.
CED Development
Engineering
(private) and Capital
Improvement
Program (CIP) Lead
(public)
Ongoing
Preconstruction
inspections
Inspect construction sites prior to
construction if they exhibit high
sediment transportation potential.
CED Development
Engineering and
CED Planning
Ongoing
Construction
inspections
Inspect all sites during construction to
verify proper installation and
maintenance of required erosion and
sediment controls.
CED Construction
Inspectors and CED
Building Inspectors
Ongoing
Post-construction
inspections
Inspect all sites after construction to
ensure proper installation of permanent
stormwater facilities.
CED Construction
Inspectors and CED
Building Inspectors
Ongoing
Private stormwater
facility inspections
Continue private facility inspection
program for stormwater facilities
constructed since adoption of the 2009
King County Surface Water Design
Manual (SWDM).
SWU Engineering Ongoing
January 2015
12 City of Renton Stormwater Management Program Plan
Table 4-1 (continued). Planned Activities to Control Runoff from
New Development, Redevelopment, and Construction Sites.
Activity Tasks Lead Proposed Schedule or Frequency
Notice of Intent
availability
Provide copies of the “Notice of Intent
for Construction Activity” to
representatives of proposed new
development and redevelopment.
CED Development
Engineering
Ongoing
Preconstruction
meetings
Consider requiring all contractors to
attend an ESC meeting with City staff
prior to the preconstruction meeting.
CED Development
Engineering and
CED Planning
June 2016
Public education and
outreach
Develop educational materials
describing low impact development
(LID) best management practices
(BMPs), their purpose, and
maintenance requirements.
SWU Engineering June 2016
Review and adopt new
stormwater manual
Review the latest Ecology Stormwater
Management Manual for Western
Washington and King County SWDM
(if approved by Ecology) and determine
which manual the City should adopt.
CED Development
Engineering, CED
Planning, and SWU
Engineering
Before
December 31, 2016
Integrating LID into
local codes
Review and revise codes, rules,
standards, and other enforceable
documents to incorporate and require
LID principles and LID BMPs.
CED Development
Engineering, CED
Planning, and SWU
Engineering
Before
December 31, 2016
Summarize the results
of the code review and
revision process
The summary shall include a list of
participants, documents reviewed, and
revisions made.
CED Development
Engineering, CED
Planning, and SWU
Engineering
Include as an
attachment to the
March 31, 2017,
annual report
January 2015
City of Renton Stormwater Management Program Plan 13
MUNICIPAL OPERATIONS AND MAINTENANCE
This section describes the Phase II Permit requirements related to municipal O&M, including
planned activities.
2013–2018 Phase II Permit Requirements
Section S5.C.5 of the 2013–2018 Phase II Permit requires the City to develop and implement
an O&M program with the ultimate goal of preventing or reducing pollutant runoff from the
municipal separate stormwater system and municipal O&M activities. The specific Phase II
Permit requirements are as follows:
1. Implement maintenance standards that are at least as protective as those specified in
Ecology’s Stormwater Management Manual for Western Washington.
2. Perform annual inspections of all City-owned or operated permanent stormwater
treatment and flow control BMPs/facilities, other than catch basins, and take
appropriate maintenance actions.
3. Spot check potentially damaged permanent treatment and flow control BMPs/facilities
(other than catch basins) after major storm events; and conduct maintenance and
repairs as needed.
4. Perform routine catch basin and inlet inspections. Clean as needed based on
maintenance standards.
5. Implement practices, policies, and procedures to reduce stormwater impacts
associated with runoff from all lands owned or maintained by the City and road
maintenance activities under the functional control of the City.
6. Implement an ongoing training program for City staff whose primary construction,
operations, or maintenance job functions may impact stormwater quality.
7. Implement Stormwater Pollution Prevention Plans (SWPPPs) for all heavy equipment
maintenance or storage yards and material storage facilities owned or operated by the
City.
8. Maintain records of inspections and maintenance or repair activities.
Planned Activities
Table 5-1 summarizes the City’s planned activities associated with municipal O&M.
January 2015
City of Renton Stormwater Management Program Plan 15
Table 5-1. Planned Municipal Operations and Maintenance Activities.
Activity Tasks Lead
Proposed Schedule
or Frequency
Maintenance procedure
and standards
Implement O&M program. SW Maintenance Ongoing
Stormwater Pollution
Prevention Plan
(SWPPP)
Implement the SWPPP for the
Maintenance Shops Facility.
Public Works
Maintenance
Ongoing
Stormwater treatment
and flow control
facility/BMP inspections
and spot checks
Ongoing inspection program for City-
owned or operated stormwater facilities.
SW Maintenance,
Parks/Golf,
Facilities, Airport
Ongoing
Record keeping Utilize a Maintenance Management
System (MMS) to record time and
resources spent on all O&M activities,
tracking of inspections, and
maintenance performed.
SW Maintenance,
Parks/Golf,
Facilities, Airport
Ongoing
Staff training Pursue training opportunities for
maintenance staff.
SW Maintenance,
Parks/Golf,
Facilities, Airport
Ongoing
Review and adopt new
maintenance standards
Review the latest Ecology Stormwater
Management Manual for Western
Washington and King County SWDM (if
approved by Ecology) and determine
which maintenance standards the City
should adopt.
SWU Engineering,
SW Maintenance,
Parks/Golf,
Facilities, Airport
Before December
31, 2016
Catch basin inspection
program
The City is currently implementing
Option 3 (cleaning all pipes, ditches,
catch basins, and inlets once during the
permit term).
SW Maintenance,
Parks/Golf,
Facilities, Airport
Before July 2018
January 2015
16 City of Renton Stormwater Management Program Plan
TOTAL MAXIMUM DAILY LOAD REQUIREMENTS
This section provides a brief discussion of the Phase II Permit total maximum daily load
(TMDL) requirements.
2013–2018 Phase II Permit Requirements
Section S7 of the NPDES Phase II Permit lists the following requirements:
1. Implement the specific requirements identified in Appendix 2 of the Phase II Permit
for applicable TMDLs listed in Appendix 2.
2. Compliance with the permit constitutes compliance with applicable TMDLs not listed
in Appendix 2 of the Phase II Permit.
3. Comply with permit modifications and TMDL implementation plans prepared by
Ecology for TMDLs that are approved by the US Environmental Protection Agency (EPA)
after the Phase II Permit has been issued.
Planned Activities
The City is currently not affected by any TMDLs listed in Appendix 2 of the NPDES Phase II
Permit.
January 2015
City of Renton Stormwater Management Program Plan 17
MONITORING
This section provides a brief discussion of the Phase II Permit monitoring requirements,
including planned activities.
2013–2018 Phase II Permit Requirements
Section S8 of the 2013–2018 Phase II Permit requires the City to do the following:
1. Provide a description of any stormwater monitoring or stormwater-related studies
conducted during the reporting period
2. Pay into a collective fund to implement a Regional Stormwater Monitoring Program
(RSMP) that includes the following three components:
• Status and trends monitoring
• Stormwater management program effectiveness studies
• Source identification and diagnostic monitoring
The City is not required to conduct water quality monitoring for compliance with total
maximum daily loads (TMDLs) pursuant to Section S7 and Appendix 2 of the Phase II Permit,
since the City is currently not affected by any TMDLs listed in Appendix 2 of the NPDES
Phase II Permit.
Planned Activities
The City decided to opt in to the RSMP and started contributing to the RSMP fund beginning in
August 2014. Annual payments into the RSMP, begun in August 2014, include the following:
• Status and trends monitoring: $21,055
• Stormwater management program effectiveness studies: $35,082
• Source identification and diagnostic monitoring: $3,253
• Annual Total: $59,390
• 2013–2018 Phase II Permit Total: $237,560
January 2015
City of Renton Stormwater Management Program Plan 19
REPORTING
This section provides a brief discussion of Phase II Permit reporting requirements, including
planned activities.
2013–2018 Phase II Permit Requirements
Section S9 of the 2013–2018 Phase II Permit lists the following requirements:
1. Submit an annual report to Ecology no later than March 31 of each year (beginning in
2015).
2. Keep all records related to the NPDES Phase II Permit and the SWMP for at least 5
years.
3. Make records related to the NPDES Phase II Permit and the SWMP available to the
public at reasonable times during business hours.
4. Additional reporting requirements included in other NPDES Phase II Permit sections
include:
a. March 31, 2015 Annual Report: Include a written description of internal
coordination mechanisms (to eliminate barriers to permit compliance among City
departments)
b. March 31, 2017 Annual Report: Include a summary of the results of the review
and revision process for local development-related codes, rules, standards, or
other enforceable documents to incorporate and require LID principles and LID
BMPs. This summary shall include, at a minimum:
i. A list of the participants (job title, brief job description, and department
represented)
ii. Codes, rules, standards, and other enforceable documents reviewed
iii. Revisions made to those documents which incorporate and require LID
principles and LID BMPs
Planned Activities
The City plans to meet all of the reporting requirements outlined in the 2013–2018 Phase II
Permit. Internal coordination mechanisms implemented in 2014 are described in Appendix A.
January 2015
City of Renton Stormwater Management Program Plan 21
APPENDIX A
Internal Coordination Mechanisms
INTERNAL COORDINATION MECHANISMS
The City formed a NPDES Interdepartmental Team in the fall of 2014 that includes staff from
the following City Departments/Divisions:
• Public Works Department
o Surface Water Utility (SWU) Engineering
o Public Works Maintenance
o Stormwater (SW) Maintenance
• Community and Economic Development (CED) Department
o Development Engineering
o Planning
o Construction Inspections
o Building Inspections
o Code Compliance
• Renton Fire Department Response Operations
• Renton Municipal Airport
• Community Services
o Parks and Golf Course Division
o Facilities Division
The Interdepartmental Team developed a permit compliance matrix that lists Phase II Permit
requirements, Ecology deliverables or documentation in the Annual Report, task leads, task
support, and deadlines. The Interdepartmental Team will continue to coordinate Phase II
Permit implementation activities during the duration of the permit, to ensure that the City
meets the requirements of the Phase II Permit.
January 2015
City of Renton Stormwater Management Program Plan A-1
NaturalYard Care (NYC) ProgramJina KimProgram SpecialistSolid Waste UtilityMarch 23, 2015
NYC Program HistoryLong-standing, popular programEnglish and Spanish classesFunded by LHWMP grant
Goals & ObjectivesParticipationCommunityRelationshipsDiverseClassesEnvironmental Awareness
Participation0 50 100 150 200201420132012SpanishEnglish9 14914718115131581621942 Spanish, 4 EnglishFall gardening, edibles, IPMGood neighborhood distribution
Evaluation• I plan to practice new yard care techniques I learned tonight96%130/135• This class strengthened my commitment to natural yard care92%122/133• I will share what I learned with family, friends and neighbors93%124/133
Moving ForwardCommunity organizationsSpanish class challenges◦Speakers◦ParticipationUnderstand barriers, needs and perceptionsPublic access to NYC
Jina KimSolid Waste Utilityjkim@rentonwa.gov“I am thrilled Renton is helping citizens reduce toxins and water consumption as well as growing food and being aware of environmental impact.”“I was introduced to so many new ideas tonight! I would like to learn more.”“These classes are more appreciated than you know.”“I am inspired to garden in new and healthier ways.”“Thank you, City of Renton!”Comments