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.
Chapter 173-167 WAC Emergency Drought Funding (2021)
This is the emergency rulemaking page for Chapter 173-167 WAC.
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-167-2021
Chapter 173-501 WAC
On May 27, 2020, Ecology adopted amendments to Chapter 173-501 WAC.
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-501
Chapter 173-503A WAC
This is the rulemaking page for Chapter 173-503A WAC.
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-503a-feb15
Chapter 173-525 WAC
This is the rulemaking page for Chapter 173-525 WAC.
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-525-mar05
Chapter 173-526 WAC
This is the rulemaking page for Chapter 173-526 WAC.
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-526-mar05
Chapter 173-167 WAC Emergency Drought Funding (2023)
This is the rulemaking page for Chapter 173-167 WAC.
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-167-2023
Chapter 173-167 WAC Emergency Drought Funding (2024)
This is the rulemaking page for Chapter 173-167 WAC.
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-167-2024
Dam construction & modification guidance
We provide guidance and technical notes for dam construction and modification.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dam-construction-modification-guidance
Dam operation & maintenance guidance
We provide guidance to assist dam owners with operations and maintenance.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dam-operation-maintenance-guidance
Water metering reporting
You can report your water meter use data using our online reporting system.
https://ecology.wa.gov/regulations-permits/reporting-requirements/water-metering-reporting
Well construction notice of intent
Before you drill a well, you must submit a notice of intent to us 72 hours before drilling starts.
https://ecology.wa.gov/regulations-permits/reporting-requirements/well-construction-notice-of-intent
Well construction reporting & well report gateway
Resource protection well reports can be submitted online.
https://ecology.wa.gov/regulations-permits/reporting-requirements/well-construction-reporting
Municipal water law
We help regulate municipal water suppliers to ensure a safe and reliable drinking water supply.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/municipal-water-law
Metering technical information
Find out about meter types, technical requirements, vendors, and installers.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/metering
Water rights search guidance
Water right records can be searched on a map-based water right database.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/water-rights-search
Well construction & licensing system
Search for notices of intent, licensed drillers, or drilling companies.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/well-construction-licensing-system
Well report (log) viewer
Search for wells and view availabile well reports (logs).
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/well-report-gateway
Columbia River water use compliance
Our watermaster investigates possible unauthorized use.
https://ecology.wa.gov/regulations-permits/compliance-enforcement/water-use-compliance/columbia-river-water-use-compliance
Changes to existing water rights
If you want to change to an existing water right, we recommend a pre-application consultation.
https://ecology.wa.gov/regulations-permits/permits-certifications/water-right-permits/changes-to-existing-water-rights
Certified water right examiner certification
We share information to help you gain or maintain your certified water right examiner certification.
https://ecology.wa.gov/regulations-permits/permits-certifications/certified-water-right-examiner
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