Search Results - Washington State Department of Ecology

TMDL Surrogates White Paper

This is a white paper that discusses the use of surrogates in Total Maximum Daily Load (TMDL) water cleanup plans.

https://ecology.wa.gov/tmdl-surrogates-white-paper

Washington Department of Information Services Data Center - Technical Support Document for Health Impact Assessment

Technical Support Document for Health Impact Assessment (Second Tier Review) for Washington Department of Information Services Data Center, 9/16/10

https://ecology.wa.gov/finaldistier2-09-16-2010

Blackrock-Sabey Data Centers - Technical Support Document for Health Impact Assessment

Technical Support Document for Health Impact Assessment (Second Tier Review) for Blackrock and Sabey Data Centers, 10/5/10

https://ecology.wa.gov/tier2-tsd-blackrock-sabey-cl100510

Centroid calculator

An Excel/VBA program to calculate the centroid of a time-concentration series or any x-y series of data.

https://ecology.wa.gov/xlsm-centroid-calculator

Public Comment Matrix (WAC 173-219) Sept. 21, 2015

Spreadsheet of public comments for the Reclaimed Water rulemaking from Sept. 21, 2015.

https://ecology.wa.gov/public-comment-matrix-wac-173-219-09-21-15

Microsoft Columbia Data Center - Technical Support Document for Health Impact Assessment

Technical Support Document for the Health Impact Assessment (Third Tier Review) for Microsoft Columbia Data Center, 8/20/10

https://ecology.wa.gov/ms-tier3-doc

RAC Agenda (WAC 173-219) 02/16/17

Reclaimed Water Rule Making Advisory Committee (RAC) - February 16, 2017 Meeting Agenda

https://ecology.wa.gov/rac-agenda-wac-173-219-02-16-17

Stormwater Manual Handout

Redevelopment handout for the manual improvement meeting.

https://ecology.wa.gov/swm-handout-1

RAC Agenda (WAC 173-219) March 31, 2015

Reclaimed Water Rule Making Advisory Committee (RAC) - March 31, 2015 Meeting Agenda

https://ecology.wa.gov/rac-agenda-wac-173-219-03-31-15

RAC Agenda (WAC 173-219) 11/03/14

Reclaimed Water Rulemaking Advisory Committee (RAC) Meeting Agenda - November 3, 2014

https://ecology.wa.gov/rac-agenda-wac-173-219-11-03-14

Stormwater Manual power point

This presentation shows intended improvements for the manual.

https://ecology.wa.gov/swm-powerpoint

RAC Workshop Agenda (WAC 173-219) 11/30/15

Reclaimed Water Rulemaking Advisory Committee (RAC) Workshop Agenda - November 30, 2015

https://ecology.wa.gov/rac-agenda-wac-173-219-11-30-15

RAC Agenda (WAC173-219) 03/28/17

Reclaimed Water Rule Making Advisory Committee (RAC) - March 28, 2017 Meeting Agenda

https://ecology.wa.gov/rac-agenda-wac173-219-03-28-17

Rulemaking proposed language (WAC 173-415) 11/07/18

This is the proposed rule language for WAC 173-415, Primary Aluminum Plants.

https://ecology.wa.gov/rulemaking-proposed-language-wac-173-415-11-07-1

RAC Meeting Notes (WAC 173-219) 03/31/15

Reclaimed Water Rulemaking Advisory Committee (RAC) Meeting Notes - March 31, 2015

https://ecology.wa.gov/rac-meeting-notes-wac-173-219-03-31-15

Rulemaking Proposal (WAC 173-446) 5-16-22

This is a rulemaking proposal (CR-102) for Chapter 173-446 WAC, Climate Commitment Act Program.

https://ecology.wa.gov/rulemaking-proposal-wac-173-446-5-16-22

Rulemaking proposed language (WAC 173-446) 5-16-22

This is the proposed rule language for Chapter 173-446 WAC, Climate Commitment Act Program.

https://ecology.wa.gov/rulemaking-proposed-language-wac-173-446-5-16-22

RAC Presentation (WAC 173-219) 05/04/17

Reclaimed Water Rule Making Advisory Committee (RAC) - May 5, 2017 webinar presentation.

https://ecology.wa.gov/rac-presentation-wac-173-219-05-04-17

RAC Presentation (WAC 173-219) 11/03/14

Presentation from November 3, 2014 RAC Meeting for the Reclaimed Water Rulemaking

https://ecology.wa.gov/rac-presentation-wac-173-219-11-03-14

Table of Contents (WAC 173-446) 5-16-22

This is the table of contents for proposed rule language for Chapter 173-446 WAC, Climate Commitment Act Program.

https://ecology.wa.gov/table-of-contents-wac-173-446-5-16-22

RAC Working Draft (WAC 173-219) 03/15/17

Reclaimed Water Rule Making Advisory Committee (RAC) - Working draft of rule language for March 15, 2015.

https://ecology.wa.gov/rac-working-draft-wac-173-219-03-15-17

Rulemaking Adoption Notice (WAC 173-219) 01/23/18

This is a rulemaking adoption (CR-103) for WAC 173-219 Reclaimed Water

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-219-01-23-18

Rulemaking Announcement (WAC 173-219) June 4, 2014

This is a rulemaking announcement (CR-101) for WAC 173-219 Reclaimed Water

https://ecology.wa.gov/rulemaking-announcement-wac-173-219-06-04-14

Permeable Pavement Inspection Form

Low Impact Development guidance - Permeable Pavement Inspection Form

https://ecology.wa.gov/permeablepavementinspectionform

Rulemaking proposal (WAC 173-219) Aug. 23, 2017

This is a rulemaking proposal (CR-102) for WAC 173-219 Reclaimed Water

https://ecology.wa.gov/rulemaking-proposal-wac-173-219-08-23-17

Rulemaking proposed language (WAC 173-219) Aug. 23, 2017

This is proposed rule language for WAC 173-219 Reclaimed Water

https://ecology.wa.gov/rulemaking-proposed-language-wac-173-219-08-23-1

Port Orchard Lim Amend Meetings and Staff Report

Council meeting notes and staff report to Council for the SMP Amendment

https://ecology.wa.gov/port-orchard-lim-amend-meetings-and-staff-report

Port Orchard Lim Amend Ordinance 31-16

Official actions of elected officials to adopt or amend local policies

https://ecology.wa.gov/port-orchard-lim-amend-ordinance-31-16

Lower Yakima Valley Groundwater Management Program Executive Summary - Spanish

Executive Summary - Spanish

https://ecology.wa.gov/gwma-executive-summary-spanish

Municipal Stormwater Phase II Permit S5.C.1 Education and Outreach permit section preliminary draft

Public Education and Outreach (Phase II) Preliminary draft “fact sheet” and permit language.

https://ecology.wa.gov/10-3-17prelim_phi_ed_o

Rosalia Official Shoreline Map

Maps out streams, Waterbodies, Town Limit, and Shoreline Designations

https://ecology.wa.gov/rosalia-official-shoreline-map

Whatcom County SMP Checklist

This is a checklist that Whatcom County used for the limited amendment submittal

https://ecology.wa.gov/whacosmpchklst

Lower Yakima Valley Groundwater Management Program FAQs - Spanish

Frequently Asked Questions - Spanish

https://ecology.wa.gov/gwma-frequently-asked-questions-spanish

Port Orchard Lim Amend SMP

Shoreline Master Program adopted by a city or county but not yet formally approved by Ecology

https://ecology.wa.gov/port-orchard-lim-amend-smp

Municipal Stormwater Phase I Permit S5.C.10 Education and Outreach permit section preliminary draft

Public Education and Outreach (Phase I) Preliminary draft “fact sheet” and permit language.

https://ecology.wa.gov/10-3-17prelim_phi_ed_o-1

Port Orchard Final Approval Letter

Letter from Ecology to Port Orchard issuing final approval of the limited amendment

https://ecology.wa.gov/portorchfnlappltr

Whatcom County SMP Limited Amendment Cover Letter

Letter from Whatcom County to Ecology regarding the amendment submittal

https://ecology.wa.gov/whacosmplimamendcvrltr

Preliminary draft language for S5.C.2/S5.C.3 Mapping for MS4 permits

2019 Western Washington Municipal Stormwater Permit preliminary draft language for S5.C.2/S5.C.3 Mapping.

https://ecology.wa.gov/10-3-17prelimdraftmappingfinal

Lower Yakima Valley Groundwater Management Program Executive Summary

Executive Summary

https://ecology.wa.gov/lower-yakima-valley-groundwater-management-pro-2

Lower Yakima Valley Groundwater Management Program FAQs

Frequently Asked Questions

https://ecology.wa.gov/lower-yakima-valley-groundwater-management-pro-1

WGHOGA letter on NPDES permit application

Burrowing shrimp document: WGHOGA letter on NPDES permit application

https://ecology.wa.gov/wghoga-letter-on-npdes-permit-application

Pierce County Cumulative Impacts Analysis Figure Map

Collection of Maps to show WRIAs, Basins, Dock Permit history, etc.

https://ecology.wa.gov/pierce-county-cumulative-impacts-analysis-figure-m

Sequim Approved SMP December 2013

Shoreline Master Program that has been adopted by the local jurisdiction and Approved by Ecology

https://ecology.wa.gov/sequim-approved-smp-december-2013

San Juan County Inventory and Characterization Appendix A: Map Folio

Map 20: Impervious Surfaces

https://ecology.wa.gov/san-juan-county-inventory-and-characterizatio-19

Sand & Gravel General Permit Summary of Changes

Summary of Changes in the Preliminary Draft Sand & Gravel General Permit

https://ecology.wa.gov/summarypreliminarydraftpermitchanges

Wahkiakum County SMP August 5 1992

Wahkiakum County SMP including limited amendment of August 1992

https://ecology.wa.gov/wahkiakumcountysmp

Vantage Data Center Health Impact Assessment (Second Tier Review) Recommendation, April 2022

This is the April 2022 Health Impact Assessment (Second Tier Review) Recommendation for Vantage Data Center.

https://ecology.wa.gov/202204vantagetier2rec

Yakima Approved SMP October 2014

Shoreline Master Program that has been adopted by the local jurisdiction and Approved by Ecology

https://ecology.wa.gov/yakima-approved-smp-october-2014

Rulemaking Proposal (WAC 173-446) 9-7-23

This is a rulemaking proposal (CR-102) for Chapter 173-446 WAC, Climate Commitment Act Program Rule.

https://ecology.wa.gov/rulemaking-proposal-wac-173-446-9-7-23

Adjudication Claim Form Coming Soon

If you use water from a well, stream, or lake, adjudication affects you

https://ecology.wa.gov/feb-mailer-2025