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.
Reporting BMPs and Load Reductions for Section 319 and Matching Centennial Projects
Overview presentation about reporting BMPs and load reductions.
https://ecology.wa.gov/reporting-bmps-and-load-reductions-for-section-319
Water Quality Assessment/Policy 1-11 Updates Bioassessment Alternatives Proposed by Ecology January 2017
Ecology is proposing 3 Alternatives for purposes of public dialogue on the use of bioassessment data for listing in the Water Quality Assessment.
https://ecology.wa.gov/proposed_bioassessment_alternatives
Puget Soundkeeper and Spokane Riverkeeper letter to Ecology about Water Quality Assessment Policy 1-11
June 2017 Letter to Ecology about Water Quality Assessment Policy 1-11 from Puget Soundkeeper and Spokane Riverkeeper
https://ecology.wa.gov/psk-srk-letter-on-policy
PSNGP Annual Report Instructions-Year1
Instructions for Puget Sound Nutrient General Permit holders to submit their Annual Reports for Year 1.
https://ecology.wa.gov/psngpannualreportinstructions-year1
Rulemaking proposed language (WAC 173-201A) WQ Standards 07/30/19
This is the proposed rule language for WAC 173-201A multiple revisions to WQ Standards
https://ecology.wa.gov/proposed-language-wac-173-201a-07-30-19
Redline 2018 Sand & Gravel general permit
This is the draft 2018 Sand & Gravel general permit language with redline edits.
https://ecology.wa.gov/redline-2018-general-permit
QuincyWWTFtmdl
TMDL Fact Sheet for the Quincy Industrial Waste Treatment Facility
https://ecology.wa.gov/quincy-waste-treatment-facility-tmdl
Industrial receiving water study QAPP template
Industrial receiving water and wastewater treatment facility effluent temperature study QAPP template
https://ecology.wa.gov/qappindustrialtemplate
Municipal receiving water study QAPP template
Industrial receiving water and wastewater treatment facility effluent temperature study QAPP template
https://ecology.wa.gov/qappmunicipaltemplate
RECURO - Bioretention system
Ecology finds RECURO - bioretention planter system functionally equivalent to a bioretnetion planter or planter box.
https://ecology.wa.gov/recuro-bioretention-system
Ecology Water Quality Funded Project Property Purchase Conditions and Guidance
Ecology Water Quality Funded Project Property Purchase Conditions and Guidance
https://ecology.wa.gov/property-purchase-conditions-and-guidance
Recommendation to Deny SIZ application memo
Memo: recommendation to deny Sediment Impact Zone applications as impacts of the discharge prohibit Sediment Impact Zone authorization and cannot be addressed via permit conditions.
https://ecology.wa.gov/recommendation-to-deny-siz-application
Recommendation to Deny WGHOGA permit application
Memo: Recommendation to deny WGHOGA NPDES permit application as impacts of the discharge prohibit Sediment Impact Zone authorization and cannot be addressed via permit conditions.
https://ecology.wa.gov/recommendation-to-deny-wghoga-permit
Response to Comments - Final Determination
This is the response to comments from the comment period held for the tentative determination of the permit application.
https://ecology.wa.gov/response-to-comments-final-determination
RC preliminary draft presentation 2015 for the Sand and Gravel General Permit
This is a presentation on concrete recycling and the preliminary draft presentation 2015 for the Sand and Gravel General Permit.
https://ecology.wa.gov/rc-preliminary-draft-presentation2015
Concrete Recycling
Explanation of Sand & Gravel General Permit Preliminary Draft Language about Concrete Recycling
https://ecology.wa.gov/rcpreliminarydraftpresentation2015
Recycled concretes preliminary language Sand and Gravel General Permit.
This shows the preliminary draft language for concrete recycling for the Sand and Gravel General Permit.
https://ecology.wa.gov/recycled-concrete-preliminary-language
Sand & Gravel General Permit Preliminary Draft Concrete Recycling Language
This shows proposed preliminary draft language for the 2016-2021 Sand & Gravel General Permit related to recycled concrete.
https://ecology.wa.gov/recycledconcretepreliminarylanguage
Appeal of 2005 Construction Stormwater Permit by Puget Soundkeeper
Puget Soundkeeper Alliance Appeal of the 2005 Construction Stormwater General Permit
https://ecology.wa.gov/pugetsoundkeeper
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