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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Biochemical Oxygen Demand (BOD) - Benchsheet for bottle method

The worksheet for labs uses the bottle method for biochemical oxygen demand testing.

https://ecology.wa.gov/bod-benchsheet

BOD benchsheet for SM 5210B

This a quality-control tool for environmental laboratories is used with the 5-day Biochemical Oxygen Demand (BOD) test, Standard Method 5210-B.

https://ecology.wa.gov/bod-benchsheet-sm-5210b

pH benchsheet

is a quality-control tool for environmental laboratories.

https://ecology.wa.gov/ph-benchsheet

Total suspended solids benchsheet

is a quality-control tool for environmental laboratories.

https://ecology.wa.gov/total-suspended-solids-benchsheet

Quality Assurance Project Plan template

The template includes information and instructions needed for the preparation of a QA Project Plan.

https://ecology.wa.gov/qapp-template

Water quality individual permit guidance

Guidance and resources for individual wastewater permits; limit pollution, maintain water quality.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/water-quality-permits-guidance

Using the EIM Data Analysis Tool

The EIM Data Analysis Tool (EDAT) compares data from Ecology's EIM database to cleanup criteria.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-cleanup-tools/eim-data-analysis-tool

SEPA subject index

References to SEPA topics in rule and statute.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-subject-index

Manuals & procedures for accredited labs

Download the procedure manual, and find tips and tools for accredited environmental labs.

https://ecology.wa.gov/regulations-permits/permits-certifications/laboratory-accreditation/manual-and-procedures-for-accredited-laboratories

Proficiency testing requirements

Six proficiency testing sample providers are approved by our laboratory accreditation program.

https://ecology.wa.gov/regulations-permits/permits-certifications/laboratory-accreditation/proficiency-testing-providers