Regulations & Permits

Use this portal to filter and search for all of our regulatory information.

We oversee many state and federal laws designed to protect Washington's land, air, and water. See our laws, rules, & rulemaking page for more information about our current rules and rulemaking.

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Estimaging Load Reductions using STEPL

Spreadsheet tool for the estimation of pollutant load

https://ecology.wa.gov/estimaging-load-reductions-using-stepl

Federal Fiscal Year 2014 & 2015 Work Plan | Watershed Protection and Restoration Lead Organization Grant | National Estuary Program (NEP) | Washington Department of Ecology

Work plan and budget summary for the 2014 watershed grant proposal.

https://ecology.wa.gov/federal-fiscal-year-2014-2015-work-plan-waters

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

Ecology's contained-in determination policy memo

Ecology's policy about contained-in determinations.

https://ecology.wa.gov/contained-in-determination-memo

Permitting Processes Flowchart September 2014

A flowchart that shows the local, state, and federal permitting processes for commercial shellfish aquaculture in Washington.

https://ecology.wa.gov/existing-permitting-processes-flowchart-september

FMF Rosman Unit Response to Comments

Collection of documents recording comments received for the permitting of the Fire Mountain Farms Rosman Unit biosolids facility.

https://ecology.wa.gov/fmf-rosman-roc

Ch173350_3rdPrelimDraft121516-PartFour.pdf

Part Four: 400 Limited purpose landfills, -410 Inert waste landfills, and -490 Other methods of solid waste handling.

https://ecology.wa.gov/ch173350_3rdprelimdraft121516-partfour-pdf

Citizens for Rational Planning v. Whatcom Co. 63646-4-1

Summary of Washington land use case Whatcom County

https://ecology.wa.gov/citizens-for-rational-planning-v-whatcom-co-6364

Discharge Monitoring and Reporting schedule

Annual Schedule of Discharge Monitoring and Reporting for Boatyard general permit

https://ecology.wa.gov/dmrschedule

Export Record Keeping

Use this form to document your exported materials under the CAFO permit

https://ecology.wa.gov/export-record-keeping

Boatyard general permit FAQs

Answers to frequently asked questions about the Boatyard general permit

https://ecology.wa.gov/faqboatyard

Equivalent Residential Units (ERU) calculation worksheet tool

Equivalent Residential Units (ERU) calculation tool for use by people applying for Ecology Water Quality Program's Wastewater Facility Hardship Funding.

https://ecology.wa.gov/equivalent-residential-units-eru-calculation-wor

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

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

Construction Stormwater General Permit DMR poster

Facilities with NPDES or State Waste Discharge permits are required to monitor the discharge from their facility and to submit reports to Ecology about this discharge. These reports are known as DMRs. The report requirements differ by permit type and water body.

https://ecology.wa.gov/dmrflyer

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

EAP Soos Creek TMDL 2023

EAP Drone Checklist - Soos Creek TMDL 2023

https://ecology.wa.gov/eap-soos-creek-tmdl-2023