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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Oath Approval Order 16AQ-E012 Amendment 2

This is the 2017 amendment 2 approval order for Oath Holdings in Quincy.

https://ecology.wa.gov/20171222oath16aq-e012amend2

Yahoo Data Center - Legal notice for revised Notice of Construction permit

Legal notice for revised Notice of Construction permit for Yahoo Data Center, 8/8/17

https://ecology.wa.gov/yahoolegalnotice08082017

Yahoo Data Center - Technical Support Document for Notice of Construction permit

Technical Support Document for Notice of Construction permit for Yahoo Data Center, 7/13/17

https://ecology.wa.gov/yahoopd16aqe012amd1

Yahoo Data Center - Notice of Construction application

Notice of Construction application for Yahoo Data Center, 6/9/17

https://ecology.wa.gov/yahoonocapp060917

Vantage Data Center, Quincy Agreed Order with TSD & R2C

This is the Agreed Order 16AQ-E026 for Vantage Data Center with the Technical Support Doc and the Response to Comments attached.

https://ecology.wa.gov/201712vantagequincyao16aq-e026-tsd-r2c

Vantage Data Center - Health Impact Assessment Recommendation

Health Impact Assessment (Second Tier Review) Recommendation for Vantage Data Center, 5/11/17

https://ecology.wa.gov/vantage-hiarec-051117ada

Vantage Data Center - Health Impact Assessment letter

Health Impact Assessment (Second Tier Review) Letter for Vantage Data Center, 5/11/17

https://ecology.wa.gov/vantage-tier2ltr-final-051117ada

2017 Noxious Weed General Permit

Noxious Weed General Permit from 2017.

https://ecology.wa.gov/2017noxiousweedpermit

2017 Noxious Weed General Permit Fact Sheet

Noxious Weed General Permit Fact Sheet from 2017.

https://ecology.wa.gov/2017noxweedfactsheet

2017 settlement Agreement Sand & Gravel

Sand & Gravel 2017 settlement Agreement with WACA

https://ecology.wa.gov/2017settlementagreemt

Potential MS4 Outfall Reporting Standard Attribute Information (February 2017)

This handout was created as part of the MS4 Outfall Reporting Standard presentation and illustrates our initial thinking on what a MS4 outfall reporting standard might look like.

https://ecology.wa.gov/2017outfallhandout

Meeting introduction for Reissuance of the Phase I and Western Washington Phase II Municipal Stormwater Permits

This is a meeting agenda and background for the public meetings of the Reissuance of the Phase I and Western Washington Phase II Municipal Stormwater Permits in 2017.

https://ecology.wa.gov/2017pubmtgagenda

Public meeting table prompts for MS4 reissuance 2017

This is the list of table prompts from the public meeting for the MS4 reissuance process.

https://ecology.wa.gov/2017pubmtgtableprompts

2017 Pretreatment Plan

2017 Taylor Shellfish Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993005pretrtplan

2017 Pretreatment Plan

2017 Wiegardt and Sons Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993006pretrtplan

2017 Pretreatment Plan

2017 Station House Oysters Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993004pretrtplan

2017 Pretreatment Plan

2017 Northern Oyster Company Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993007pretrtplan

2017 Pretreatment Plan

2017 Willapa Bay Shellfish Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993008pretrtplan

2017 Pretreatment Plan

2017 Herrold Fish Oyster Z. japonica Pretreatment Plan

https://ecology.wa.gov/2017wag993009pretrtplan

NTT Data Services notice of construction (NOC) permit

This is the May 2017 amended air quality notice of construction permit for NTT Data Services in Quincy.

https://ecology.wa.gov/20170504nttdatanocpermit