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.
Ecology Water Quality Funded Activity Projects Zip File of ArcReader Map Layer for 12 Digit HUC Lookup
Description for the Ecology Water Quality Funded Activity Projects Zip File of ArcReader Map Layer for 12 Digit HUC Lookup
https://ecology.wa.gov/arcreader-map-layer-for-12-digit-hucs-zipfile
East Fork Lewis River Partnership
Addressing water quality impairments in the East Fork Lewis River watershed through collaborative work with government entities, non-profits and private industry.
https://ecology.wa.gov/east-fork-lewis-river-partnership
Form: Notice of Termination for Construction Stormwater
This form is needed to submit a Termination for an active Construction Stormwater General Permit.
https://ecology.wa.gov/notice-of-termination-for-construction-stormwater
Form: Notice of Termination for Industrial Stormwater
This form is needed to submit a Termination for an active Industrial Stormwater Permit coverage.
https://ecology.wa.gov/notice-of-termination-for-industrial-stormwater
Saltwater studies - Marine water column data prior to 1989
Zipped Excel spreadsheet explaining the methods, quality, and data before 1989.
https://ecology.wa.gov/historicalwatercolumndata-zip
Manning's n calculator
An Excel/VBA program to calculate Manning's n (or depth) from cross-section data for trapezoidal or rectangular channels based on equation 14.32 in Chapra's Surface water quality modeling textbook.
https://ecology.wa.gov/manning-s-n-calculator-zip
Forms: Sand and Gravel permit
List of forms related to permits for sand and gravel operations.
https://ecology.wa.gov/forms-sand-and-gravel-permit
Map look-up tool:Water Quality Atlas - map look-up tool
Use this map to find water quality data, including standards and outfalls.
https://ecology.wa.gov/water-quality-atlas-map-look-up-tool
Online tool: Aquatic Plant and Algae Management (login required)
This database is for permit coverages to control aquatic plants, algae, or phosphorous using chemicals that are put directly into surface water like lakes or streams.
https://ecology.wa.gov/aquatic-plant-and-algae-management
Online tool: Certified Erosion & Sediment Control Lead (CESCL)
Look up information about individuals who have completed CESCL training, including expiration dates.
https://ecology.wa.gov/certified-erosion-sediment-control-lead-cescl
Online tool: Freshwater Information Network
We monitor water quality at nearly 100 river and stream stations throughout the state to understand the health of waterways.
https://ecology.wa.gov/water-quality-monitoring-statewide-network
Online tool: Water quality permit database (PARIS) – Enforcements
Search water quality permits for enforcement actions.
https://ecology.wa.gov/paris-enforcements
Online tool: Water Quality Assessment (303(d)/305(b) list)
Look up water quality assessments by listing details, status, location, TMDL project or EIM identifier.
https://ecology.wa.gov/water-quality-assessment-303-d-305-b-list
River & stream thermal infrared image viewer
We conducted temperature surveys of 39 rivers in 2003 - 2004 from small planes equipped with cameras and infrared sensors. The resulting images show warm and cold spots in the river systems. Choose a river by basin in the drop-down menu on the left to scroll through the images in the map on the right.
https://ecology.wa.gov/river-stream-thermal-infrared-image-viewer
Online tool: Water Quality Permitting and Reporting Information System (PARIS)
This is a database that houses water quality permits, inspections, enforcements, discharge monitoring data, violations and permit triggers, and other permit documents.
https://ecology.wa.gov/water-quality-permit-database-paris
Online tool: Water Quality Permitting Portal (WQWebPortal) - login required
(SAW account required)
https://ecology.wa.gov/water-quality-permitting-portal-wqwebportal
Publication index: Deschutes River
List of links to documents about water quality in the Deschutes River and Budd Inlet
https://ecology.wa.gov/deschutes-river
Publication index: Lakes information
List of links to documents related to water quality in lakes
https://ecology.wa.gov/lakes
Publication index: Lower Duwamish River
List of links to documents and posters related to the Lower Duwamish River
https://ecology.wa.gov/lower-duwamish-river
Publication index: Soos Creek
List of links to documents about water quality in Soos Creek
https://ecology.wa.gov/publication-index-soos-creek
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