Sediments, chemicals, and debris can harm aquatic life and reduce water quality. Issaquah creek basin and nonpoint action plan, king county surface water. The stormwater management manual for western washington swmmww. The objective of this manual is to provide guidance in stormwater design and management for eastern washington. Stormwater management network effectiveness and implications. Alternative designs closed loop wheel wash systems are preferred with the wastewater discharged to a sanitary sewer. Melinda wilson permit administrator 3604077229 melinda. Stormwater ponds tax ditches restoration opportunities stream bank stabilization beaver dams d r a i n a g e a n d s t o r m w a t e r a s s i s t a n c e 3028551955 delaware help line toll free. This feature class is generated weekly using live database managed by stormwater section in water and land resources division, dnrp. Pursuant to king county council adoption of ordinance 16264, the department of natural resources and parks adopted a public rule revising the king county surface water design manual swdm. The ecology stormwater manuals list treatment technologies that.
An exception to this is street cleaning, which appears to be a common practice throughout europe. Sites with existing imperviousness greater than 50%. The mission of the department of ecology is to protect, preserve, and enhance washingtons environment. The costs jurisdictions incur to manage stormwater runoff from state highways.
The stormwater management cop consists of representatives from 16 state dots, and the federal highway administration fhwa. Storm water management model reference manual volume i. Wlrd will be designing and conducting much of the training that is required, including training for the departments and countys staff. The proposed changes to the manual are seen as track changes edits. West virginia region 9 model stormwater management. Central oregon stormwater manual august 2010 chapter 4 geotechnical site characterization 4 4 logs of borings andor test pits including groundwater elevation, if encountered. A catalogue of stormwater reuses has been compiled which is intended to act as a source of ideas to stimulate further discussions scholes and shutes, 2007. Adoption of 2009 king county surface water design manual.
The accepted use of these systems varies with a wide range of structural and non structural bmps being employed in northern and temperate european countries for stormwater control, whereas their applicability is less well developed in southern european countries such as spain, italy, greece and portugal. C, effectively prohibits nonstormwater, illegal discharges, andor dumping into the citys municipal separate storm. Twelve bellevue, bellingham, clark county, douglas county, king county, kitsap county, olympia, pierce county, renton, skagit county, tukwila, and vancouver currently charge the state of washington under rcw 90. Errata to king countys 2009 surface water design manual and supporting. Results of field and or laboratory testing conducted including raw data, assumptions, and calculations. The stormwater npdes permit sections s4 and s5 states. Trca, 2008a and don river watershed plan trca, 2009a reach similar. Two issaquah and puyallup appear to have charged the state in. The 2017 greater kansas city urban stormwater conference is presented by the marc water quality public education committee, the kansas water environment association and the missouri water environment association. King county, washington, surface water design manual 2009 surface water design manual 192009 17 1. If you have questions about ordering the stormwater manual and model program please call the department of printing at 360 5705555. This section of the regulations, the general permit program, is designed to provide npdes permit coverage to a specified group, category or class of discharges that are substantially similar in nature or type of. Implement a stormwater management plan that reduces impervious cover, promotes infiltration and captures and treats the stormwater runoff from 90% of the average annual rainfall 1 using acceptable best management practices bmps bmps used to treat runoff must be capable of.
Throughout the manual, the term storm drain system is typically used in place of ms4. Essential elements for strong local stormwater programs. Stormwater problems can also affect the health and safety of people. This program is provided as a supplement to the king county surface water design manual. Stormwater management manual for eastern washington. Construction stormwater permit washington state department. S401 bmps for the building, repair, and maintenance of boats and ships.
Wheel wash and tire bath operations continued king county stormwater pollution prevention manual january 2009 1 2 the wheel wash should start out with fresh water each day. Pdf stormwater management network effectiveness and. New york state stormwater management design manual references cerrelli, g. Kendra henderson permit administrator 3604076556 kendra. The stormwater manual helps address climate adaptation mpcas stormwater programs recently launched a new web based version of the minnesota stormwater manual to guide stormwater managers through regulations, bmps, recommended designs, and techniques. Seattle, washington and king county, washington settlement. The survey, conducted between june 24 and july 14, 2009, was performed for the hernando county bocc, and in association with king engineering. The stormwater management cop members agreed that watershedbased stormwater management should be the top priority for this report of the cop. King county, washington, surface water design manual 2009 surface water design manual 19 2009 17 1.
Minnesotas stormwater manual and design standards address. As we develop land to accommodate our growing population, our stormwater problem grows, too. An accurate count of washington residents will ensure the fair distribution of political representation and of federal and state resources. Draft 2009 surface water design manual and the stormwater pollution prevention manual. The link above will take you to the home page of aug 08, 2019 eyes over puget sound surface condition report july, 2019 now available. Appendix e additional design requirements and plant lists stormwater manual directors rule 172017dww200 august 2017 ei table of contents e1. Archived versions of stormwater code documents and manuals published by king county stormwater services section in the water and land resources division. Implement a stormwater management plan that reduces impervious cover, promotes infiltration and captures and treats the stormwater runoff from 90% of the average annual rainfall 1 using acceptable best management practices bmps. Washington state department of ecology water quality program. The county of kings is defined as a small ms4 and is required to prepare and implement a storm water management program for those portions of the ua between the cities of hanford and lemoore, excluding the land within the city.
Permeable pavement and a bioretention swale, seneca college, king city, ontario. This document is intended to help determine whether a project is eligible for emergency construction in which case a construction stormwater permit application is not required to commence construction. Blair scott, water quality planner, king county stormwater services section. There certainly is a great deal of stormwater information out there, indeed. Stormwater pollution prevention manual 2016 guide describing best management practices for businesses, residents, managers, and owners of property in unincorporated king county to apply to reduce the contamination of stormwater, surface water, and groundwater. Stormwater management manual for western washington. Implement a stormwater management plan that results in a 25% decrease in the volume of stormwater runoff from the 2year 24hour design storm. This model stormwater management ordinance has been designed to address issues including stormwater control and the chesapeake bay nutrient reduction requirements in the potomac river watershed in west virginia. Phase i permits contain additional requirements for water quality monitoring and retrofits. Stormwater management network effectiveness and implications for urban watershed function. The ecology stormwater manuals list treatment technologies that have a relatively small footprint. Huber school of civil and construction engineering oregon state university corvallis, or 97331. Our stormwater manuals provide stormwater permit implementation and management guidance.
Huber school of civil and construction engineering oregon state university corvallis, or 97331 national risk. The 2009 draft update of king county stormwater pollution prevention manual sppm click here or on the title above to download the draft sppm 2. Stormwater staff from all jurisdictions in king county, as well as development professionals. Many king county divisions manage and develop properties and facilities that are covered under this permit. Swdm signed public rule and summary of changes 20092016. Stormwater manuals washington state department of ecology. The 2009 king county stormwater pollution prevention manual was developed by king county and adopted for use within unincorporated king county in january 2009. City of vista stormwater standards manual page 2 updated june 2015. Stormwater management manual for western washington smmww, chapter 12 emerging technologies, or stormwater management manual for eastern washington smmew chapter 5. Post disaster recovery yes no no no res 43, 2272012 real estate disclosure no no yes yes wa state mandates certain disclosures by real. City of bellingham stormwater management program swmp. We require regulated construction sites to get coverage under the construction stormwater general permit cswgp. Washington, dc april 16, 20 king county and the city of seattle have agreed to invest in a major upgrades of to local sewage and combined stormwater collection, piping and treatment under settlements with the department of justice and the u. Wheel wash and tire bath operations king county, washington.
Stormwater runoff from construction sites can carry muddy water, debris, and chemicals into local waterways. Case studies the project team agreed to research and write eight case studies from a representative crosssection of survey respondents. The stormwater division aims at informing all individuals of the types of activities around us that pose problems to the environment and human health. Archived stormwater documents king county, washington. Epa600r15162a revised january 2016 storm water management model reference manual volume i hydrology revised by. Prior to euroamerican settlement, the landscape tree canopy, other. The case studies are to address at least the following issues.
This manual, the 2009 city of kenmore stormwater pollution prevention manual, is a modified version of that king county manual. In mason county, many agencies, governments and groups are working together to manage and regulate stormwater. The stormwater management plan must include stream channel protection and quantity control strategies. P er requirements in king countys phase 1 municipal stormwater permit effective date. Pros and cons of ecology versus king county manual. Seattle dpd stormwater best available science seattle. Results of the sublevel structure feasibility study and downstreamdowngradient. Environmental protection agency cincinnati, oh 45268 and wayne c. Drainage complaints reported to king county dept of natural resources and parks, water and land resources division, stormwater services section. Rossman national risk management laboratory office of research and development u. Benton, island, king county exception for the city of seattle, kittitas, klickitat county, san juan, or yakima county. The city of odessa receives authorization from the state of texas to be allowed to use their tpdes ms4 general permit so long as we follow the requirements detailed in the permit. To limit disruption and pollution of natural water flows by managing stormwater runoff. East side jurisdictions planning director meetings.
This dataset shows the locations of stormwater facilities for the control of stormwater or water quality improvement. Pursuant to king county council adoption of ordinance 18257, the department of natural resources and parks adopted a public rule revising the king county surface water design manual swdm. Emergency construction stormwater application overview fact sheet author. West virginia region 9 model stormwater management ordinance. Aug 14, 2019 stormwater management manual for eastern wa ecology is pleased to announce that the updated 2019 stormwater management manual for eastern washington swmmew is now available online. How to find the stormwater manual and model program on the internet the stormwater management manual for eastern washington and the model municipal. Ecology compiled data from the 200920 western washington stormwater npdes. In 1998, king county promulgated a stormwater technical manual and associated regulations. Map has ongoing update process through our public works geographic information systems gis section. The state of washington was a coplaintiff and partner in. The protective design standards are found in the state stormwater manual, first adopted in 1992 and updated in 2005 for western and eastern washington.
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