Regulations & Permits - Washington State Department of Ecology

Ecology/Commerce Watershed Protection & Restoration Proposal

Six-year work plan for restoring and protecting watersheds in the Puget Sound region (2011-2017).

https://ecology.wa.gov/ecology-commerce-watershed-protection-restoratio

EPA Davis-Bacon Act Memo November 30, 2009

Application of Davis-Bacon Act Wage Requirements to Fiscal Year 2010 Clean Water State Revolving Fund and Drinking Water State Revolving Fund Assistance Agreements

https://ecology.wa.gov/epa-davis-bacon-act-memo-november-30-2009

EcologyCommentsEPA082819

This is a copy of the testimony that Heather Bartlett gave during the EPA online hearing held Aug. 28, 2019

https://ecology.wa.gov/ecologycommentsepa082819

Eastern WA O&M Worksheet

Use this worksheet as a guide for interviewing MS4 staff and reviewing applicable documents.

https://ecology.wa.gov/eastern-wa-o-m-worksheet

LID Briefings for Elected Officials - Eastern Washington Presentation

This is a briefing about Low Impact Development requirements of municipal stormwater permittees for elected officials in Eastern Washington.

https://ecology.wa.gov/electedbriefingsewapresentation

LID Briefings for Elected Officials - Western Washington Presentation

This is a briefing about Low Impact Development requirements of municipal stormwater permittees for elected officials in Western Washington.

https://ecology.wa.gov/electedbriefingswwapresentation

AO16-07 EPA Approval Letter

This is the letter from the EPA that states that the changes still follow the Clean Water Act and are approved.

https://ecology.wa.gov/epa-approval-letter

AO16-07 EPA Approval Tech Support Doc

This is the technical support document that goes with the EPA Approval Letter.

https://ecology.wa.gov/epa-approval-tech-support-doc

Ecology Water Quality Funded Projects EAGL Document Management Guidance

https://ecology.wa.gov/eagl-document-management-guidance

Ecology Water Quality Grant and Loan Funded Projects EAGL Uploads Tip Sheet

https://ecology.wa.gov/eagl-uploads-tip-sheet

Ecology Water Quality Combined Fiscal Year 2019 Applicant Workshop Guidance for Recipient Files

https://ecology.wa.gov/ecology-water-quality-combined-fiscal-year-2019-ap

Adsorb-it filtration fabric

Ecology letter finding Eco-Tec, Inc. Adsorb-it filtration fabric, when configured properly, can be used as a catch basin insert for stormwater control.

https://ecology.wa.gov/ecologyletter

Envirotac II

Letter showing Envirotac II functionally equivalent to C126 (Polyacrylamide for Soil Erosion Protection) and C140 (Dust Control) best management practices for stormwater management.

https://ecology.wa.gov/envirotac2

Ecology's Submittal Letter to EPA (WAC 173-201A) 8/01/16

This is the Ecology's Submittal Letter to EPA for WAC 173-201A Water quality standards for surface waters of the state of Washington.

https://ecology.wa.gov/ecology-s-submittal-letter-to-epa-wac-173-201a-8

Fisheries Resource Management Permit NOI

https://ecology.wa.gov/draftfisheriesnoi

Ecology EPA response July 11 2022

Ecology's July 11, 2022 response to EPA on Lower Yakima Valley GWMA work

https://ecology.wa.gov/ecology-epa-letter-071122

Reissuance of the Eastern Washington Municipal Stormwater (MS4) Permit Handout

Handout given during the Moses Lake meeting for the Eastern Washington Municipal Stormwater (MS$) permit reissuence.

https://ecology.wa.gov/e-reissuence-meeting-hand-out

Presentation for the Eastern Washington Municipal Stormwater (MS4) permit reissuence

This was the presentation given a stakeholder meeting in Moses Lake during the Eastern Washington Municipal Stormwater (MS4) permit reissuence process.

https://ecology.wa.gov/e-reissuence-presentation

Eastern Listening Session Agenda

This is the agenda for the listening session for the Eastern Washington reissuance of the municipal stormwater permit being held on April 5, 2018

https://ecology.wa.gov/eastern-listening-session-agenda

Draft of the Modified Sand and Gravel General Permit 2017

Draft of the Modified Sand and Gravel General Permit – changes are shown in red text, unchanged moved text is shown in green.

https://ecology.wa.gov/draftmodifiedsandandgravelpermit-sept2017