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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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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 Announcement refile (WAC 173-503A; 02/15/05

This is a rulemaking announcement refile (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-refile-wac-173-503a;-02-2

Rulemaking Proposal (WAC 173-526) 04/19/10

This is a rulemaking proposal (CR-102) for WAC 173-526 Chapter 173-526 WAC - Cowlitz Water Resources Management Program - WRIA 26

https://ecology.wa.gov/rulemaking-proposal-wac-173-526-04-19-10

Rulemaking proposal (WAC 173-525)

This is a rulemaking proposal (CR-102) for WAC 173-525 Grays-Elochoman Instream Resources Protection and Water Management Program

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

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

Rulemaking Notice of Withdrawal (WAC 173-503A) 02/14/05

This is a rulemaking notice of withdrawal 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-notice-of-withdrawal-wac-173-503a-02

Rulemaking Emergency Adoption Notice (WAC 173-167) 06/04/2019

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

https://ecology.wa.gov/rulemaking-order-wac-173-167-06-04-2019

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 Announcement (WAC 173-566) 08/15/18

This is a rulemaking announcement (CR-101) Chapter 173-566 Streamflow Restoration Funding

https://ecology.wa.gov/rulemaking-announcement-wac-173-566-08-15-18

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 proposal CR-102 (173-166 WAC) 01/02/2018

This is a rulemaking proposal (CR-102) for WAC 173-166 Emergency Drought Relief

https://ecology.wa.gov/rulemaking-proposal-173-166-wac-01-02-2018

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

Rulemaking Proposal (WAC 173-557) 09/17/14

This is a rulemaking proposal (CR-102) 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-proposal-wac-173-557-09-17-14

CR-103 Adoption Notice

CR-103 Adoption Notice for WAC 173-167

https://ecology.wa.gov/rulemaking-emergency-adoption-notice-wac-173-167-07-24-2023

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 Emergency Adoption Notice (WAC 173-167) 08/14/24

[9:11 AM] Brooks, Barbara (ECY) This is an emergency rulemaking adoption (CR-103E) for WAC 173-167 Emergency Drought Funding

https://ecology.wa.gov/rulemaking-emergency-adoption-notice-wac-173-167-08-14-24

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