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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UIC Class V Well Definitions

This document explains the Class V well definitions and lists the Washington well code and the EPA well code.

https://ecology.wa.gov/class-v-well-definitions

Clarification on Class 5 UIC well practices from EPA

Read EPA's clarification on which stormwater infiltration practices/technologies we may regulate as a Class 5 UIC well

https://ecology.wa.gov/class5wellepamemo

CARA Scoping Detail by Topic

This excel spreadsheet is an easy way to give us feedback by topic for the CARA Guidance Scoping

https://ecology.wa.gov/cara-scoping-detail-by-topic-1

Clark Public Utilities: Lockwood Creek Restoration

Clark County Public Utilities' Lockwood Creek restoration grant

https://ecology.wa.gov/clarkputil-lockwoodcrgrantfinalrpt

CAFO Application for Coverage

Apply for the CAFO permit

https://ecology.wa.gov/cafo-application

Ecology Water Quality Clean Watershed Needs Survey (CWNS) Program On-Site Sewage Systems Survey Instructions and Forms

https://ecology.wa.gov/clean-watershed-needs-survey-cwns-on-site-sewage

G14 Certification Statement

Certification Statement and Signature Page required for permit submittals

https://ecology.wa.gov/cafo-certification-sheet

CAFOCombinedPermit

State and Federal Concentrated Animal Feeding Operation Permit

https://ecology.wa.gov/cafo-combined-permit

Yearly Nutrient Budget

A yearly nutrient budget spreadsheet that permittees can fill out.

https://ecology.wa.gov/cafo-nutrient-excel

CAFO Response to comments

Response to comments and feedback on the concentrated animal feeding operation state permit

https://ecology.wa.gov/cafo-response-to-comments

CAFO State-only permit

State-only concentrated animal feeding permit

https://ecology.wa.gov/cafo-state-only-permit

CAFO Transfer of Coverage Form

Concentrated animal feeding operation transfer of coverage form

https://ecology.wa.gov/cafo-transfer-of-coverage-form

VIS System for Stormwater runoff filtration

We find the VIS system functionally equivalent to a bioretention planter or planter box.

https://ecology.wa.gov/cedargrovevissystem

Chart of Changes between the 2005 and 2012 Stormwater Management Manual for Western Washington

This shows which sections changed between the 2005 and 2012 SWMMWW

https://ecology.wa.gov/changechart

Clark County’s 2005 Stormwater Management Manual for Western Washington equivalent program

Clark County Development & Redevelopment Flow Control Mitigation Program

https://ecology.wa.gov/clarkcountydevelopmentredevelopmentflowcontrolmiti

Changes accapted formal sand and gravel general permit

After adding the edits, this is the formal draft Sand and Gravel General Permit.

https://ecology.wa.gov/changes-accapted-formal-sand-and-gravel-general-pe

Catch basin inspection alternatives

This focus sheet explains the catch basin inspection options in the permits and provides examples.

https://ecology.wa.gov/catch-basin-inspection-alternatives

Guide to Changes in the 2016 Sand & Gravel General Permit

This guide provides information on what has changed between the 2011 and 2016 Sand & Gravel General Permit. The guide is setup by permittee categories and NAICS / Ecology Codes. Refer to the appropriate categories below for your business (more than one category may apply to your operations). This document is only intended as a guide. Refer to the permit for more information.

https://ecology.wa.gov/changesguide2016

Sand & Gravel General Permit Formal Draft with redlines

Track Change PDF of Sand & Gravel General Permit Draft

https://ecology.wa.gov/changesshownsandgravelpermit2016