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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Environmental Covenant for MSW and Limited Purpose Landfills

This is Ecology's official form for covenants with Washington's landfills.

https://ecology.wa.gov/environmental-covenant-for-msw-and-limited-purpose

Feedstocks composted 2010 - 2016

Excel file showing feedstocks composted (tons) 2010-16.

https://ecology.wa.gov/feedstocks-composted-chart-2010-15-plain-text

Food composted chart plain text - 2010-15

Excel file version of food composted chart for 2010-15

https://ecology.wa.gov/food-composted-chart-plain-text-2010-15

7Q10 for High Flows on the Columbia/Snake Rivers

Guidelines for arriving at 7Q10 for dissolved gas standards.

https://ecology.wa.gov/7q10forhighflows