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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SGGP training

2016 Sand & Gravel Permit Training Presentation

https://ecology.wa.gov/2016sandgravelpermittrainingpresentation

Phase I Municipal Stormwater Permit Appendix 2

Appendix 2. Total Maximum Daily Load Requirements

https://ecology.wa.gov/2016phasei-appendix2

Phase I Municipal Stormwater Permit Appendix 3

Appendix 3. Annual Report Questions for the Port of Seattle and the Port of Tacoma

https://ecology.wa.gov/2016phasei-appendix3

Phase I Municipal Stormwater Permit Appendix 4

Appendix 4. Annual Report Questions for Secondary Permittees

https://ecology.wa.gov/2016phasei-appendix4

Phase I Municipal Stormwater Permit Appendix 5

Appendix 5. Notice of Intent for Coverage

https://ecology.wa.gov/2016phasei-appendix5

S5.C.6 Structural Stormwater Control excel workbook

Excel workbook to calculate level of effort proposed in the preliminary permit language

https://ecology.wa.gov/2016-ssc-permittee-with-description

Phase I Municipal Stormwater Permit Appendix 6

Appendix 6. Street Waste Disposal

https://ecology.wa.gov/2016phasei-appendix6

Phase I Municipal Stormwater Permit Appendix 7

Appendix 7. Determining Construction Site Sediment Damage Potential

https://ecology.wa.gov/2016phasei-appendix7

Phase I Municipal Stormwater Permit Appendix 8

Appendix 8. Businesses and Activities that are Potential Sources of Pollutants

https://ecology.wa.gov/2016phasei-appendix8

Phase I Municipal Stormwater Permit Appendix 9

Appendix 9. Stormwater Discharge Monitoring

https://ecology.wa.gov/2016phasei-appendix9

2013-2018 Phase I Municipal Stormwater Permit

This permit regulates stormwater discharges in the most highly populated areas in our state.

https://ecology.wa.gov/2016phaseipermit

Phase I Municipal Stormwater Permit 2016 response To Comments

Response to Comments for Permit Modification Effective August 19, 2016

https://ecology.wa.gov/2016responsetocomments

2016 Annual Report

2016 Taylor Shellfish Z. japonica Annual Report

https://ecology.wa.gov/2016wag993005annualrpt

2016 Annual Report

2016 Wiegardt and Sons Z. japonica Annual Report

https://ecology.wa.gov/2016wag993006annualrpt

2016 Pretreatment Plan

2016 Wiegardt and Sons Z. japonica Pretreatment Plan

https://ecology.wa.gov/2016wag993006pretrtplan

2016 Pretreatment Plan

2016 Taylor Shellfish Z. japonica Pretreatment Plan

https://ecology.wa.gov/2016wag993005pretrtplan

2016 Annual Report

2016 Station House Oysters Z. japonica Annual Report

https://ecology.wa.gov/2016wag993004annualrpt

2016 Annual Report

2016 Long Island Oyster Z. japonica Annual Report

https://ecology.wa.gov/2016wag993003annualrpt

2016 Pretreatment Plan

2014 Long Island Oyster Z. japonica Pretreatment Plan

https://ecology.wa.gov/2016wag993003pretrtplan

2016 Pretreatment Plan

2016 Station House Oysters Z. japonica Pretreatment Plan

https://ecology.wa.gov/2016wag993004pretrtplan