This project conforms to these requirements as follows: **. Proper management of stormwater runoff will minimize damage to public and private property, reduce the effects of development on land and stream channel erosion and sedimentation, assist in the attainment and maintenance of water quality standards and reduce flooding. All new development and redevelopment must follow stormwater standards from the 2017 City of Issaquah Addendum to the Washington State Department of Ecology's most recent Stormwater Management Manual for Western Washington. The SWMMWW specifies that nine minimum requirements shall be met for new development projects per Figure I-2.4.1. Click the image to the left to go to document's homepage on the Department of Ecology's website. NOTES The manual, . It outlines how to control the quantity and quality of stormwater pollution that typically increases as new development replaces natural . In the guidance you will find minimal maintenance schedules, inspection, documentation and contact information. 39. The following is a list of regulations/ design manuals adopted by the City of Mercer Island: Standards for new development and redevelopment MICC 15.09.050. Control Manual . The 2012 Stormwater Management Manual for Western Washington ("SWMMWW" or "manual") is a bedrock document that guides how nearly everyone involved in regional stormwater management does his or her job. Preparation of Stormwater Site Plans 2. Our goal for this update is to create one stand-alone manual that is equivalent to the Department of Ecology's Stormwater Management Manual for Western Washington (2012). Other design criteria requirements are an overflow structure, adequate separation from ground water and that an im ported bioretention soil mix be 18" in depth to provide enhanced treatment of runoff. Acknowledged in Section D1-01 "General" that the city has adopted the 2014 state stormwater manual. Our stormwater manuals provide stormwater permit implementation and management guidance. See the Stormwater Management Manual (2014) Volume 1 for complete descriptions of these requirements. All complete applications submitted prior to November 24, 2015 that have not started construction by July 1, 2021. March 2014. Stormwater Management Manual for Western Washington (2014 Update) The City of Lake Stevens uses the 2014 updated version of the 2012 Stormwater Management Manual for Western Washington. The 2014 Stormwater Management Manual for Western Washington was adopted by the City as of January 1, 2017. In fall of 2017, Ecology announced they will be extending the existing permit from expiration in 2018 including revisions, achieving equivalency with the Department of Ecology's 2014 Stormwater Management Manual for Western Washington. Ecology's Stormwater Management Manual for Western Washington (SWMMWW) Ecology's Stormwater Management Manual for Eastern Washington (SWMMEW) Order a hard copy or CD The Directors of SPU and SDCI share responsibility for issuance of notices of violation, stop work orders, and corrective actions for violation of the Stormwater Code. The bulk The City of Puyallup has prepared the following stormwater worksheets to assist single-family homeowners in preparing a stormwater management report that will meet the criteria of the 2014 Stormwater Management Manual for Western Washington. This permit is for a five-year period expiring on July 31, 2018, when it is expected that Ecology will issue a revised permit. What is Low Impact Development? New and re-development projects must follow new design requirements which are now often triggered with just a Single Family Residence project. Detect and eliminate illicit discharges. Stormwater Management Manual for Western Washington (SWMMWW) provides additional guidance Efforts have been underway to further develop these "low impact development" concepts in Western Washington. The manual, . Adopted Stormwater Manual for Design The City of Mill Creek uses the 2014 Revision of the 2012 Department of Ecology Stormwater Management Manual for Western Washington. Authors: Ben Alexander, Sound Native Plants & Erica Guttman, WSU Extension. Erosion is a natural process that can be accelerated by human activity. 2019 Engineering Development Manual and in the 2014 Stormwater Management Manual for Western Washington. Ecology Stormwater Management Manual fo r Western Washington (SWMMWW) Volume 1, Chapter 2. In 2019, Ecology revised its stormwater design manual for Western Washington communities. This version is a revision of the 2014 SWMMWW. December 31, 2017 Illicit Discharge Detection and Elimination Stormwater Maintenance Agreement. It seems pretty straight forward: identify which Minimum Requirements your project triggers and then go to 40. The DOE issues a National Pollution Discharge Elimination System (NPDES) Permit to the City of Poulsbo, and one of the permit requirements is that the City adopt the 2019 Stormwater Management Manual for Western Washington with an effective date of July 1st, 2022. The major intersection between these stormwater manuals and WAC 246-272A stems from language in the stormwater manuals relating to STRES necessary to manage stormwater on single-family residential (SFR) building lots. The City of Redmond Preservation of Natural Drainage Systems and Outfalls 5. August 1, 2013, and also issued a new 2012 Ecology Stormwater Management Manual for Western Washington (2012 Ecology Manual, revised in 2014), which contains Stormwater requirements for new development, redevelopment, and construction sites. 2009 Surface Water Design Manual; 2009 King County Stormwater Pollution Prevention Manual; 2007 King County Road Standards; 1993 King County Road Standards; Washington State. Management Manual for Western Washington, as amended in December 2014, as the Stormwater Management Manual for the entirety of unincorporated Skagit County. Please fill out all required fields before submitting your information. On May 1st, 2009, the City of Shoreline implemented new surface water code that requires Low Impact Development (LID) for projects that disturb soils or add, replace, or create impervious surfaces. STORMWATER SITE PLAN _____ Terraforma Design Group, Inc. SUMMARY OF MINUMUM REQUIREMENTS 10 Minimum Technical Requirements as provided within Vol. Updated Stormwater Manual- Adopt the 2014 Stormwater Management Manual for Western Washington. The City's standards for Right-of-Way, Stormwater, and Grading and Clearing are found in: Title 12, Title 13, and Title 15 of the Mukilteo Municipal Code; Mukilteo Development Standards (Amended 2019) Mukilteo Development Standards (2017) Stormwater - 2012 Stormwater Management Manual for Western Washington (Amended 2014, WA DOE) Stormwater . 2013-2018 NPDES Phase II Permit; 2015 WSDOT Specifications; 2014 WSDOT Highway Runoff Manual; 2012 LID Manual; 2012 Stormwater Management Manual for Western Washington Division 2, Engineering Design and Construction Standards consist of Earthwork, and Temporary Erosion and Sediment Control. Bremerton adopted the Washington State Department of Ecology "Stormwater Management Manual for Western Washington", as amended in December 2014 . Electronic copies are available at no cost. The objective of this manual is to provide guidance on the measures necessary to control the quantity and quality of stormwater produced by new development and redevelopment, such that they comply with water quality standards and contribute to the protection of receiving waters. 2. This document, the City of Issaquah 2016 Stormwater Design Manual 2014 SWMMWW Welcome to the online, interactive 2012 Stormwater Management Manual for Western Washington, as Amended in December 2014 (The 2014 SWMMWW). SWMMPSB - 1992 Stormwater Management Manual for the Puget Sound Basin, published by Department of Ecology SMMWW - 2014 Stormwater Management Manual for Western Washington, published by Ecology Other criteria or exemptions may apply. Refer to 2017 City of Issaquah Stormwater Design Manual Addendum and the 2014 Stormwater Management Manual for Western Washington for more information. Resource List - Advanced Longterm LID Operations: Bioretention Western Washington 2012 (Amended 2014) Stormwater Management Manual for Western Washington Instructions: Complete the information on this page and attach the provided cover sheet from page 2 of this document to the front. Western Washington 2012/2014 Stormwater Management Manual for Western Washington (2014 version includes maintenance tables for bioretention and permeable pavement) 2014 Stormwater Management Manual for Western Washington. The Notebook may be modified in 2019 in anticipation of upcoming permit and SWMMWW changes. Information in these pages provide guidance on stormwater management requirements for projects within the . The "Surface Water Design Manual" is formally adopted by rule under the procedures in K.C.C. Our new stormwater manual will provide users a one-stop shop for all necessary regulatory information, along with design and maintenance standards and information tailored . Stormwater Management Manual for Western Washington as amended in 2014 (2014 SWMMWW) and the City of Redmond 2019 Stormwater Management Technical Notebook (STN). See the Stormwater Management Manual (2014) Volume 1 for complete descriptions of these requirements. other larger western Washington jurisdictions in August 2012 with an effective date of August 1, 2013. The Phase II Permit was appealed by several parties and Ecology modified the Permit and 2012 Ecology Stormwater Management Manual in response to the state Pollution Control Hearing Board appeal rulings. Stormwater Manual. On May 1st, 2009, the City of Shoreline implemented new surface water code that requires Low Impact Development (LID) for projects that disturb soils or add, replace, or create impervious surfaces. This fact sheet is intended to be used for informational purposes only. Sources: Stormwater Management Manual for Western Washington; Yakima Regional Low Impact Development Stormwater Design Manual; 2012 Low Impact Development Technical Guidance Manual for Puget Sound; Center for Neighborhood Technology; SEEC LLC. Kitsap County Departments of Public Works and Community Development have collaboratively embarked on a review and update process, with the assistance of a consulting firm. The training will provide an overview of the 2017 standards -- revised since the city adopted a 2014 amendment to the state Department of Ecology Stormwater Management Manual for Western Washington. . Engineering and Regional Operations . family residential construction, see Minimum Requirement #2: Construction Stormwater Pollution Prevention (SWPP) in the 2014 Stormwater Management Manual for Western Washington. Authors: Ben Alexander, Sound Native Plants & Erica Guttman, WSU Extension. The training will highlight the most significant changes . 2013 - 2018 (2014 modification) Western Washington Phase II and Phase I Permit references to the 2014 Stormwater Management Manual for Western Washington S5.C.5.d N/A Clean catch basins if the inspection indicates cleaning is needed to comply with maintenance standards established in the SWMMWW. The Directors of SPU and SDCI share responsibility for issuance of notices of violation, stop work orders, and corrective actions for violation of the Stormwater Code. Stormwater management for new and redevelopment projects requires analysis and design to meet current stormwater regulations in place at time of application. Stormwater Resources / Volunteering. To access this document online and for more information, go to Washington State Department of Ecology. Adopted Stormwater Manual for Design The City of Mill Creek uses the 2014 Revision of the 2012 Department of Ecology Stormwater Management Manual for Western Washington. AN INTERESTING RIDE (2014 Stormwater Management Manual for Western Washington) by David Baumgarten Navigating Minimum Requirement #5, List #1, & List #2 can be an interesting and at the same time frustrating ride. Added a new section D1-02 "Site Planning and Analyses . June 13, 2022, 9 a.m., Online webinar. Washington Department of Ecology (Ecology) 2014 Stormwater Management Manual for Western Washington (SWMMWW) for the design, construction and maintenance of stormwater management systems and facilities that are approved through the development permitting process. 1, Section 2 of the 2014 Stormwater Management Manual for Western Washington: Minimum Requirement #1 - Stormwater Site Plan For assistance with any of these compliance issues or recommendations regarding BMPs, please see the 2014 Stormwater Management Manual for Western Washington (SWMMWW), Volume II, Construction Stormwater Pollution Prevention which includes BMPs for Source Control and Runoff Conveyance and Treatment BMPs. Ecology issued the modified Permit and 2014 Manual in late December 2014. To determine which manual you need, contact your municipality or permit administrator. StormwaterClk - a GIS database the county maintains for storm sewer infrastructure SWMMPSB - 1992 Stormwater Management Manual for the Puget Sound Basin, published by Department of Ecology SMMWW - 2014 Stormwater Management Manual for Western Washington, published by . This virtual listening session will focus on the: Reissuance of the Phase I, Western WA Municipal Stormwater Permit. M 3109.01 . King County Stormwater Education. Update. Calendar of hands-on volunteer opportunities. Concurrent updates to the Stormwater Management . Instructions: Complete the information on this page and attach the provided cover sheet from page 2 of this document to the front. The full SWMMWW The Stormwater Facility Maintenance Manual (PDF) provides basic guidelines to help support the maintenance covenant requirement. Here we provide information for municipal stormwater permittees and other interested parties about equivalent stormwater manuals for the Phase I Municipal Stormwater Permit and both the Eastern and Western Washington Phase II municipal stormwater permits. Issaquah Stormwater Design Manual Addendum to the 2014 Stormwater Management Manual for Western Washington. Our staff evaluated the submittals for equivalency with the 2019 Stormwater Management Manual for Western Washington, and worked through revisions with permittees. Beginning January 1st, 2018 this package will be required for single-family homes that create and/or . MR1 and MR2 The requirements of MR1 (Stormwater Site Plan) and MR2 - 2014 Stormwater Management Manual for Western Washington, . Beginning January 1st, 2018 this package will be required for single-family homes that create and/or . Use the navigation pane on the left to go paperless with us and enjoy easy access to the 1,000-page manual on your desktop or tablet. 2012 (amended 2014) stormwater management manual for western washington www.ecy.wa.gov/programs/wq/stormwater/manual.html western washington low impact development (lid) operations and maintenance (o&m) guidance document, lid o&m training videos, and example inspection forms for bioretention and permeable pavement Source Control of Pollution 4. "Minimum requirements" means the minimum requirements for stormwater management described in the NPDES Phase II permit. The July 2021 Stormwater Management Manual is applicable to the following projects: All complete applications submitted one or after July 1, 2021. 2012 stormwater management manual for western Washington as amended in December 2014 (Vol. The City of Puyallup has prepared the following stormwater worksheets to assist single-family homeowners in preparing a stormwater management report that will meet the criteria of the 2014 Stormwater Management Manual for Western Washington. 2014: Washington : King County, Washington Surface Design Manual: King County Department ofNatural Resources : 2014: Washington: Stormwater Management Manual for Western Washington: Washington State Department of Ecology Water Quality Program: 2012: West Virginia: Stormwater Management Structure Guidance : of Volume V of the 2014 Stormwater Management Manual for Western Washington. On-site Stormwater Management 6. 2016, achieving equivalency with the Department of Ecology's 2012 Stormwater Management Manual for Western Washington, as revised in 2014. RCW - revised code of Washington SCIP - Stormwater Capital . II) (Publication Number 14-10-055). Construction Stormwater Pollution Prevention 3. The 2014 Stormwater Manual for Western Washington has been adopted by the City. Insight Engineering Co. - Stormwater Site Plan 11/23/2021 - 5 - 2014 SWMMWW MINIMUM REQUIREMENTS SUMMARY MR : MINIMUM REQUIREMENT SSP : STORMWATER SITE PLAN MR #1 PREPARATION OF STORMWATER SITE PLAN: Stormwater site plan follows 2014 Stormwater Management Manual for Western Washington. All six Phase I permittees (Snohomish, King, Pierce, and Clark counties, and the cities of Seattle and Tacoma) submitted draft codes and manuals to Ecology for review. stormwater management manuals, one for Eastern Washington and one for Western Washington. City Stormwater Regulations. Rain Garden Handbook. The nine (9) minimum requirements are: 1. SWMMPSB - 1992 Stormwater Management Manual for the Puget Sound Basin, published by Department of Ecology SMMWW - 2014 Stormwater Management Manual for Western Washington, published by Ecology Other criteria or exemptions may apply. The City will also accept all water quality treatment facility-types identified in the 2014 Ecology Stormwater Management Manual for Western Washington, though emerging technologies are considered on a case-by-case basis provided that the product has received a level of use designation from the Washington Ecology Technical Assessment Protocol . Note that these field tests generally provide a saturated hydraulic conductivity combined with a hydraulic gradient (see Darcy's Law, Equation 4D-8). 2022 DRAFT Surface Water Management Program Stormwater Management Manual for Western Washington (2012 Ecology Manual , revised in 2014), which contained Stormwater requirements for new development, redevelopment, and construction sites. In fall of 2017, Ecology extending the existing permit from expiration in 2018 to August of 2019. Bellevue offers training to applicants for stormwater permits regarding changes to Bellevue's surface water engineering standards. One option offered by Ecology allows local jurisdictions to develop their own . Earthwork standard requirements are in the PDF file under "Content". A s such, Kitsap County is mandated to update it's Stormwater Design Manual and relevant development codes for consistency. Western Washington 2012/2014 Stormwater Management Manual for Western Washington (2014 version includes maintenance tables for bioretention and permeable pavement) Construction Stormwater General Permit As of January 2014, stormwater facilities, systems and LID features are required to have a stormwater maintenance agreement that identifies who is responsible for the operation and maintenance of the system or LID components.