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...
Vantage Notice of Construction Revised Tier 2
This is the Vantage Data Center's revised final 2012 Notice of Construction support document for Tier 2 review.
https://ecology.wa.gov/20121128nocrevtier2
Vantage Data Center - Technical Support Document for Health Impact Assessment
Risk Analysis Technical Support Document for Health Impact Assessment (Second Tier Review) for Vantage Data Center, 11/28/12
https://ecology.wa.gov/a-revised-final-tier2-risk-analysis-vantage-112820
Vantage Data Center Health Impact Assessment (Tier 2 review) letter, April 27, 2022
This is the April 27, 2022 health impact assessment (Tier 2 review) letter for Vantage Data Center.
https://ecology.wa.gov/20220427vantagetier2ltr
Vantage Data Center Health Impact Assessment (Second Tier Review) Recommendation, April 2022
This is the April 2022 Health Impact Assessment (Second Tier Review) Recommendation for Vantage Data Center.
https://ecology.wa.gov/202204vantagetier2rec
Vantage Data Center Notice of Construction (NOC) application, March 24, 2022
This is the March 24, 2022 notice of construction application for Vantage Data Center.
https://ecology.wa.gov/20220324vantagenocapp
Vantage Data Center notice of construction (NOC) permit and technical support document
This is the August 2023 air quality notice of construction permit (approval order) and technical support document for Vantage Data Center.
https://ecology.wa.gov/20230829vantagenocpermit
Wastewater Treatment Plant Award Recipients
Current Year Wastewater Treatment Plant Award Recipients
https://ecology.wa.gov/wwtp-award-list
H5 Data Center notice of construction (NOC) permit
This is the 2022 air quality notice of construction permit (approval order) for H5 Data Center.
https://ecology.wa.gov/20220309h5nocpermit
H5 Data Center Preliminary Determination
This is the draft preliminary determination for H5 Data Center
https://ecology.wa.gov/20211110h5draftpreldet
H5 Data Center Notice of Construction Application
This is the notice of construction application for H5 Data Center
https://ecology.wa.gov/20211110h5nocapp
H5 Data Center Health Impact Assessment Report
This is the Health Impact Assessment Report for H5 Data Center
https://ecology.wa.gov/20211110h5healthimpactassessment
H5 Data Center Notice of Construction Application DOE
This is the notice of construction application for H5 Data Center from Ecology
https://ecology.wa.gov/20211110h5nocappdoe
H5 Data Center Health Impact Assessment Recommendation
This is the Health Impact Assessment Recommendation for H5 Data Center
https://ecology.wa.gov/20211110h5tier2hiarec
H5 Data Center Tier 2 Letter
This is the Tier 2 letter for H5 Data Center
https://ecology.wa.gov/20211110h5tier2ltr
H5 Data Center Technical Support Document
This is the Technical Support Document for H5 Data Center
https://ecology.wa.gov/2021h5tsd
H5 Data Centers notice of construction (NOC) application and supporting information
This is the air quality notice of construction application and supporting information for H5 Data Centers in Grant County, near Quincy.
https://ecology.wa.gov/20211110h5revnocapp
Microsoft East Wenatchee Data Center Notice of Construction (NOC) Application and associated documents
This is the air quality notice of construction application and associated documents for Microsoft East Wenatchee Data Center in East Wenatchee.
https://ecology.wa.gov/20240119mseastwenatcheenocapp
Microsoft East Wenatchee Data Center technical support document for a draft notice of construction (NOC) permit
This is the technical support document for Microsoft East Wenatchee Data Center's draft notice of construction permit.
https://ecology.wa.gov/20240906mseasttsd
Microsoft East Wenatchee Data Center Draft Notice of Construction (NOC) Permit
This is the draft notice of construction (NOC) permit for Microsoft East Wenatchee Data Center, in East Wenatchee.
https://ecology.wa.gov/20240906mseastdraftpermit
Bale Burn BMP
This is the best management practice (BMP) for bale burns, valid through June 30, 2025.
https://ecology.wa.gov/20240701balebmp
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