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.

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Frequently Asked Questions: Policy 1-11 Bacteria Criteria Revision

Frequently asked questions about the bacteria criteria revisions to water quality Policy 1-11

https://ecology.wa.gov/frequently-asked-questions-policy-1-11-bacteria-cr

Ecology Water Quality Funded Aquatic Invasive Plants Grant Project Offer List for Fiscal Year 2015

List of applicants who were offered a grant/loan through Ecology's Water Quality Funded Aquatic Invasive Plants Grant Project Offer List for Fiscal Year 2015

https://ecology.wa.gov/fy2015-aquatic-invasive-plant-grants-offer-list

Frequently Asked Questions: Mineral prospecting and placer mining

Frequently asked question on implementing Engrossed Substitute House Bill 1261 for changes to mineral prospecting and placer mining, effective June 11, 2020

https://ecology.wa.gov/frequently-asked-questions-mineral-prospecting-and

Ecology Water Quality Funded Aquatic Invasive Plants Grant Project Offer List for Fiscal Year 2016

List of applicants who were offered a grant/loan through Ecology's Water Quality Funded Aquatic Invasive Plants Grant Project Offer List for Fiscal Year 2016

https://ecology.wa.gov/fy2016-aquatic-invasive-plant-grants-offer-list

Ecology Water Quality Funded Aquatic Invasive Plants Grant Project Offer List for Fiscal Year 2017

List of applicants who were offered a grant/loan through Ecology's Water Quality Funded Aquatic Invasive Plants Grant Project Offer List for Fiscal Year 2017

https://ecology.wa.gov/fy2017-aquatic-invasive-plant-grants-offer-list

Ecology Water Quality Funded Aquatic Invasive Plants Grant Project Offer List for Fiscal Year 2018

List of applicants who were offered grants/loan through Ecology's Water Quality Funded Aquatic Invasive Plants Grant Project for Fiscal Year 2018

https://ecology.wa.gov/fy2018-aquatic-invasive-plant-grants-offer-list

Goldendale Energy Storage Project Section 401 water quality certification

On May 22, 2023, Ecology notified Rye Development that it issued a water quality certification for the Goldendale project.

https://ecology.wa.gov/goldendale-section-401-water-quality-certification

EPA Draft Instructions for completing Form 2A

EPA Draft Instructions for the Application for permit to discharge wastewater from Publicly Owned Treatment Works

https://ecology.wa.gov/form_2a_instructions

EPA Form 2B

Application for permit to discharge wastewater from concentrated animal feeding operations and aquatic animal production facilities.

https://ecology.wa.gov/form_2b

Ecology Water Quality Funded Facility Projects Guidance Document for the CWSRF Federal Reporting Form in EAGL

https://ecology.wa.gov/guidance-document-for-cwsrf-federal-reporting-form

EPA Form 2C

Application for permit to discharge wastewater from existing manufacturing, commercial, mining, and silvicultural operations.

https://ecology.wa.gov/form_2c

EPA Form 2D

Application for permit to discharge process wastewater from new sources and new discharges.

https://ecology.wa.gov/form_2d

EPA Form 2E

Application for facilities which do not discharge process wastewater.

https://ecology.wa.gov/form_2e

EPA Form 2F

Application for permit to discharge stormwater associated with industrial activity.

https://ecology.wa.gov/form_2f

FODS

This document explains that FODS is determined to be functionally equivalent to BMP C105: Stabilized Construction Entrance.

https://ecology.wa.gov/fods

Frog Creek Partners, LLC

This document explains that Frog Creek Partners Gutter Bin is determined to be functionally equivalent to the Storm Drain Inlet Protection as described in BMP C220 in the 2019 SWMMWW and BMP C105E in the 2019 SWMMEW.

https://ecology.wa.gov/frog-creek-partners-llc

Gator Guard

Ecology finds Gator Guard Sediment Control Wattles functionally equivalent to C235 (Wattles) and C220 (Storm Drain Inlet Protection for earthen surfaces) Best Management Practices for stormwater management.

https://ecology.wa.gov/gatorgaurdefl

Functional equivalency for Geo Curve.

Ecology finds that GeoCurve Stormwater Inlet Filter is functionally equivalent for Best Management Practive C220 (Storm Drain Inlet Protection) for stormwater control.

https://ecology.wa.gov/geocurve-bmp

Formal Sand and Gravel General Permit draft.

See the formal Sand and Gravel General Permit draft.

https://ecology.wa.gov/formal-sand-and-gravel-draft

2015 Formal Draft Sand & Gravel General Permit

2015 Word version - changes between the current permit and the formal draft Formal Draft Sand & Gravel General Permit

https://ecology.wa.gov/formalsandandgraveldraft