Regulations & Permits

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

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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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Regulations & Permits

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

Regulations & Permits icon

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.

See more about this collection...
Policy 1-11 Easy-To-Read Bacteria Criteria Revisions
Easy to read version of water quality Policy 1-11 proposed bacteria criteria revisions for public comment
https://ecology.wa.gov/policy-1-11-draft-bacteria-criteria-revisions
pH benchsheet
is a quality-control tool for environmental laboratories.
https://ecology.wa.gov/ph-benchsheet
Policy 1-11 Summary of Proposed Revisions
This is a summary of proposed revisions for the water quality assessment listing Policy 1-11
https://ecology.wa.gov/policy-1-11-summary-of-proposed-revisions
Policy 1-11 Scoping Comments Summary June 2016
Summary scoping comments on the Policy 1-11, June 2016
https://ecology.wa.gov/policy1-11-scopingcommentssummary
Petition Response General Permit Small Mining Jan 19 2018
Response letter to petition for general permit for small scale mining
https://ecology.wa.gov/petition-response-general-permit-for-small-mining
Pilot Use Level Technologies Notice of Intent (application) form
Local governments with a National Pollutant Discharge Elimination System (NPDES) permit must submit this Notice of Intent Form to Ecology, and receive Ecology’s approval prior to installing a pilot-designated technology (except in retrofit situations).
https://ecology.wa.gov/puldnoi
Permit Denial Millennium Bulk Terminals
A water certification denial detailing the reasons why the Washington Department of Ecology made its decision.
https://ecology.wa.gov/permit-denial-millennium-bulk-terminals
Upland fin-fish hatching and rearing general permit
This is the 2015 general permit issued for upland fin-fish hatching and rearing. It is a National Pollutant Discharge Elimination System (NPDES) and State Waste Discharge General Permit effective from April 1, 2016 until March 31, 2021.
https://ecology.wa.gov/permitfinal12152015
Coverage and Exemptions S1.A
This section describes the specific activities that require coverge and the exemptions.
https://ecology.wa.gov/permit-section-s1-a
Preliminary draft CBA and LBA (WAC 173-201A) 9/30/14
This is the preliminary draft cost benefit and least burdensome alternative analyses for WAC 173-201A Water quality standards for surface waters of the state of Washington.
https://ecology.wa.gov/preliminary-draft-cba-and-lba-wac-173-201a-9-30
Permeable Pavement Inspection Form
Low Impact Development guidance - Permeable Pavement Inspection Form
https://ecology.wa.gov/permeablepavementinspectionform
Perry Pallet Functional Equivalent
Ecology finds Perry Pallet Mulch functionally equivalent to BMP C121 Mulching and BMP C235 Wattles.
https://ecology.wa.gov/perry-pallet
permitcoverages
This is a list of permitees and applicator coverages for the aquatic plant
https://ecology.wa.gov/permitcoverages
Part III – Response to Comments on WWA Phase II Permit
Western Washington Phase II Municipal Stormwater Permit 2012 Response to comments for permit effective Aug. 1, 2013 Part III
https://ecology.wa.gov/part3
Part V – Response to Comments on Western Washington Appendix I and Low Impact Development
Western Washington Phase II Municipal Stormwater Permit 2012 Response to comments for permit effective Aug. 1, 2013 Part V
https://ecology.wa.gov/part5
Dismissal Order for CSWGP
March 27, 2017 Dismissal Order
https://ecology.wa.gov/pchbdismissal3-27-17
Sand & Gravel General permit permit reference index
Use this index to compare permit references between the 2011 and 2016 Sand & Gravel General Permits. (Note: this index does not indicate changes in permit langugae -- many sections in the permit were renumbered without a change in permit language.)
https://ecology.wa.gov/permitreferenceindex
Appendix A: Response to Comments for Permit Effective August 1, 2013 (August 1, 2012) Part IV
Part IV - Response to Comments on the Phase I Permit
https://ecology.wa.gov/part4
Appendix A: Response to Comments for Permit Effective August 1, 2013 (August 1, 2012) Part V
Part V - Response to Comments on Western Washington Appendix I and Low Impact Development
https://ecology.wa.gov/part5-a34b5a3f5e2b9412ddd4eeb493f1d99a
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