Regulations & Permits - Washington State Department of Ecology

Cost and Effectiveness Analysis Certification

Certification for analysis of cost and effectiveness recipients of Clean Water State Revolving Fund (CWSRF) loans

https://ecology.wa.gov/cost-and-effectiveness-analysis-certification

UIC Class V Well Definitions

This document explains the Class V well definitions and lists the Washington well code and the EPA well code.

https://ecology.wa.gov/class-v-well-definitions

Clarification on Class 5 UIC well practices from EPA

Read EPA's clarification on which stormwater infiltration practices/technologies we may regulate as a Class 5 UIC well

https://ecology.wa.gov/class5wellepamemo

Conditional “No Exposure” Exemption Focus Sheet

Facilities with “no exposure” of industrial materials and activities to rain, snow, snowmelt, and/or runoff can apply for an exemption from coverage under the permit; this is called a Conditional No Exposure (CNE) exemption. This focus sheet explains that exemption.

https://ecology.wa.gov/cne-focus-sheet

Ecology Water Quality Funded Facility Projects Cost and Effectiveness Analysis Certification Form

https://ecology.wa.gov/cost-and-effectiveness-analysis-certification-form

Clark Public Utilities: Lockwood Creek Restoration

Clark County Public Utilities' Lockwood Creek restoration grant

https://ecology.wa.gov/clarkputil-lockwoodcrgrantfinalrpt

Ecology Water Quality Clean Watershed Needs Survey (CWNS) Program On-Site Sewage Systems Survey Instructions and Forms

https://ecology.wa.gov/clean-watershed-needs-survey-cwns-on-site-sewage

CR101 Notice to Interested Parties (WAC 173-224)

This is the notice that was mailed to all permitees.

https://ecology.wa.gov/cr101-notice-to-interested-parties

Ecology Water Quality Clean Watershed Needs Survey (CWNS) Program Overview for 2012

https://ecology.wa.gov/clean-watershed-needs-survey-cwns-program-overvi

Ecology Water Quality Clean Watershed Needs Survey (CWNS) Program Small Communities Survey Form 2012

https://ecology.wa.gov/clean-watershed-needs-survey-cwns-small-communit

Clima Cover

Letter verifying that ClimaCover All Weather Protective Systems can be used as an alternative to sandbags in stormwater control.

https://ecology.wa.gov/climacover

Interceptor ClimaCover

Ecology finds ClimaCover Interceptor Dike is equivalent to BMP C200 Interceptor Dam. The specifications for the check dam system must adhere to the specifications listed in this letter.

https://ecology.wa.gov/climacoverinterceptordikefea

Clark County’s 2005 Stormwater Management Manual for Western Washington equivalent program

Clark County Development & Redevelopment Flow Control Mitigation Program

https://ecology.wa.gov/clarkcountydevelopmentredevelopmentflowcontrolmiti

Corrections and Clarifications to the Stormwater Management Manual for Eastern Washington (2004)

This summarizes all the corrections and clarifications to the Eastern Washington Stormwater management manual from 2004

https://ecology.wa.gov/correctionsclarificationsstormwatermanagementmanua

Appeal of the CSWGP

11/8/15 appeal of the CSWGP that went into effect 1/1/16

https://ecology.wa.gov/contractorsvsecology-12-21-15

Guide to Changes in the 2016 Sand & Gravel General Permit

This guide provides information on what has changed between the 2011 and 2016 Sand & Gravel General Permit. The guide is setup by permittee categories and NAICS / Ecology Codes. Refer to the appropriate categories below for your business (more than one category may apply to your operations). This document is only intended as a guide. Refer to the permit for more information.

https://ecology.wa.gov/changesguide2016

Sand & Gravel General Permit Formal Draft with redlines

Track Change PDF of Sand & Gravel General Permit Draft

https://ecology.wa.gov/changesshownsandgravelpermit2016

Comparison formal draft to final Sand and Gravel General Permit

See the comparison from the formal draft to the final Sand and Gravel General Permit.

https://ecology.wa.gov/comparison-formal-draft-to-final

Sand & Gravel General Permit compared to Formal Draft Permit

This is a redline pdf showing the changes between the formal draft and the final permit for the 2016-2021 permit cycle.

https://ecology.wa.gov/comparisonformaldrafttofinal

Annual Report for Coast Seafoods

Annual report reviewing 2017 annual report for zostera japonica controls in Willapa Bay for Coast Seafoods.

https://ecology.wa.gov/coast-3011-annual-report