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Ecology provides the high-quality science that is the foundation of Washington state environmental policy. Our monitoring, assessment, and modeling services provide a data-rich understanding of our state’s land, air, and water. We provide access to that data through reports, databases, maps and user-friendly online tools.

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ROD ROD BENT 17-03 July 17 2018

A Report of Decision from the Benton County Water Conservancy Board

https://ecology.wa.gov/rod-rod-bent-17-03-july-17-2018

Rulemaking Announcement (WAC 173-525)

This is a rulemaking announcement (CR-101) for Chapter 173-525 WAC Grays-Elochoman Instream Resources Protection and Water Management Program

https://ecology.wa.gov/rulemaking-announcement-wac-173-525

Rulemaking Announcement (WAC 173-526) 03/02/05

This is a rulemaking announcement (CR-101) for WAC 173- Title; WAC XXX-XXX Title.

https://ecology.wa.gov/rulemaking-announcement-wac-173-526-03-02-05

Rulemaking Announcement (WAC 173-503A; 02/24/04

This is a rulemaking announcement (CR-101) for WAC 173-503A Instream Resources Protection Program Lower and Upper Skagit Water Resources Inventory Area (WRIAs 3 and 4)

https://ecology.wa.gov/rulemaking-announcement-wac-173-503a;-02-24-04

Rulemaking Emergency Adoption Notice (WAC 173-167) 07/28/2021

This is an emergency rulemaking adoption (CR-103E) for WAC 173-167 Emergency Drought Funding.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-167-07-28-202

Proposed rule language (WAC 173-501) 11/19/2019

This is proposed rule language for WAC 173-501 Instream Resources Protection Program - Nooksack Water Resource Inventory Area (WRIA) 1

https://ecology.wa.gov/proposed-rule-language-173-501

Proposed rulemaking (WAC 173-566) 01/17/2019

This is the proposed rulemaking announcement (CR-102) Chapter 173-566 Streamflow Restoration Funding

https://ecology.wa.gov/rule-language-wac173-566

Preliminary draft language (WAC 173-166) 09/01/17

This is Preliminary draft language for WAC 173-166 Emergency Drought Relief

https://ecology.wa.gov/preliminary-draft-language-173-166-wac-09-01-17

Rulemaking Announcement (WAC 173-166) 08/09/17

This is a rulemaking announcement (CR-101) for WAC 173-166 Emergency Drought Relief

https://ecology.wa.gov/rulemaking-announcement-wac-173-166-08-09-17

Proposed rulemaking (WAC 173-501) 11/19/2019

This is the proposed rulemaking announcement (CR-102) Chapter 173-501 Instream Resources Protection Program - Nooksack Water Resource Inventory Area (WRIA) 1

https://ecology.wa.gov/proposed-rulemaking-cr-102-wac-173-501

Rulemaking Adoption Notice (WAC 173-501) 05/27/2020

Rulemaking Adoption Notice (WAC 173-501) Instream Resources Protection Program - Nooksack Water Resource Inventory Area (WRIA) 1

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-501-05-27-202

Rulemaking Adoption Notice (WAC 173-166) 04/11/2018)

This is a rulemaking adoption (CR-103) for WAC 173-166 Emergency Drought Relief

https://ecology.wa.gov/rulemaking-order-wac-173-166-04-11-2018

Rulemaking Announcement (WAC 173-501) Instream Resources Protection Program - Nooksack Water Resource Inventory Area (WRIA) 1

This is a rulemaking Announcement (WAC 173-501) Instream Resources Protection Program - Nooksack Water Resource Inventory Area (WRIA) 1

https://ecology.wa.gov/rulemaking-announcement-wac-173-501-02-05-2019

Rulemaking Adoption Notice (WAC 173-557) 01/27/15

This is a rulemaking adoption (CR-103) for WAC 173-557 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-557-01-27-15

Rulemaking Announcement (WAC 173-557) 01/21/14

This is a rulemaking announcement (CR-101) for WAC 173-557 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.

https://ecology.wa.gov/rulemaking-announcement-wac-173-557-01-21-14

Plate 2 - Map and hydrogeologic sections (WAC 173-557; 173-555) 01/27/15

• Plate 2 - Map and hydrogeologic sections showing location of wells, surficial geology, and hydrogeologic units WAC 173-557; 173-555 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.

https://ecology.wa.gov/plate-2-map-and-hydrogeologic-sections-wac-173

Plate 2 (WAC 173-557; 173-555) 01/27/15

Plate 2 - Simplified surficial geology, generalized hydrogeologic sections, and surface geophysical transects, Spokane Valley–Rathdrum Prairie Aquifer WAC 173-557; 173-555 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.

https://ecology.wa.gov/plate-2-wac-173-557;-173-555-01-27-15

Rainbow Trout Spawning Survey, (WAC 173-557; 173-555) 01/27/15

Rainbow Trout Spawning Survey, Spokane River Hydroelectric Project, FERC Project No. 2545, Parametrix, October 2003

https://ecology.wa.gov/rainbow-trout-spawning-survey-wac-173-557;-173-5

Rulemaking Announcement (WAC 173-166) 11/01/23

This is a rulemaking announcement (CR-101) for WAC 173-166 Emergency Drought Relief

https://ecology.wa.gov/rulemaking-announcement-wac-173-166-11-01-23

Rulemaking Adoption Notice (WAC 173-167) 12/11/24

This is the rulemaking adoption notice (CR-103) for Chapter 173-167 WAC (AO 24-04)

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-167-12-11-24