Research & Data
Use this portal to filter and search for all of our scientific information.
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.
Western WA O&M Worksheet
Use this worksheet as a guide for interviewing MS4 staff and reviewing applicable documents.
https://ecology.wa.gov/western-wa-o-m-worksheet
Western WA IDDE Worksheet
Use this worksheet as a guide for interviewing MS4 staff and reviewing applicable documents.
https://ecology.wa.gov/western-wa-idde-worksheet
West-Lincoln-Application
West Lincoln Project application for a biosolids beneficial use facility
https://ecology.wa.gov/westlincolnapplication
Wetland Mod System
Ecology finds the Bio Clean Wetland Mod system is functionally equivalent to a bioretention facility when used for treating stormwater.
https://ecology.wa.gov/wetland-mod-system
Wet Sep
Letter showing Wet Sep functional equivalence.
https://ecology.wa.gov/wetsepfunctionallyequivalent
Whatcom County BAS Report 2005
Report that is used in designating and protectic critical areas in Whatcom County
https://ecology.wa.gov/whacobasrep2005
Pharmaceutical waste regulations webinar
PDF version of the Pharmaceutical Waste Regulations webinar conducted by Ecology's health care team January 2021
https://ecology.wa.gov/webinar-pharmawaste-slides-2021
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
WGHOGA Public Notice of Intent to Deny NPDES Permit letter
This document contains the letter, public notice, and description of the Intent to Deny the NPDES permit for WGHOGA
https://ecology.wa.gov/wghoga-public-notice-npdes-letter
WGHOGA transmittal letter for NPDES permit application
Burrowing shirmp document: WGHOGA transmittal letter for NPDES permit application
https://ecology.wa.gov/wghoga-transmittal-letter-for-npdes-permit-applica
Wenatchee Approved SMP October 2014
Shoreline Master Program that has been adopted by the local jurisdiction and Approved by Ecology
https://ecology.wa.gov/wenatchee-approved-smp-october-2014
West Richland Approved SMP March 2016
Shoreline Master Program that has been adopted by the local jurisdiction and Approved by Ecology
https://ecology.wa.gov/west-richland-approved-smp-march-2016
Westport Approved SMP May 2017
Shoreline Master Program that has been adopted by the local jurisdiction and Approved by Ecology
https://ecology.wa.gov/westport-approved-smp-may-2017
Westport Critical Areas Regulations May 2017
Development regulations in Westport's critical areas and natural resource lands
https://ecology.wa.gov/westport-critical-areas-regulations-may-2017
2017 Annual Report for Wiegardt & Sons, Inc.
This annual report reviews Zostera Japonica controls on commercial clam beds in Willapa Bay for Wiegardt & Sons, Inc..
https://ecology.wa.gov/weigardt-3006-annual-report
2018 Pretreatment Plan Weigardt
Pretreatment plan for Zostera Japonica controls on commercial clam beds in Willapa Bay for Weigardt.
https://ecology.wa.gov/weigardt-2018-pretreatment-plan
Northeast West Plains PFAS in drinking water sampling area map
West Plains Sampling Map
https://ecology.wa.gov/west-plains-pfas-sampling-area-map
Northeast West Plains PFAS March 2024 well sampling results meeting slides
Download the slides for the 6/6/24 NE West Plains drinking water sampling results meeting
https://ecology.wa.gov/west-plains-pfas-sampling-results-slides
Northeast West Plains PFAS in drinking water sampling results map
The EPA created this map to summarize where samples were taken without showing private well locations.
https://ecology.wa.gov/west-plains-pfas-sampling-results-map
Aug 14 webinar slides
This is the presentation for the Cycle 1.5 webinar conducted on Aug. 14, 2024
https://ecology.wa.gov/webinar-presentation-aug-14
4470 results
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