Water Use Rules in Washington County, MN (2026)
1 rule for unincorporated Washington County, Minnesota.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Washington County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Recycled Water Rules
Washington County treats graywater reuse as a Type III onsite sewage system under Development Code Chapter Four, Section 19.5. Adopted as County Ordinance No. 206 and enforced by the Department of Public Health and Environment, the rule applies across unincorporated townships, cuts the design flow to 60 percent of standard values, and bars toilet waste.
Washington County Graywater Recycling System Rules
Some RestrictionsWashington County Development Code, Chapter Four, § 19.5
19.5 Graywater Systems (1) General. Graywater Systems shall be classified as a Type III system and must meet or exceed the following requirements: (A) Employ 60 percent of the flow values in Section 12. (B) Meet or exceed applicable requirements of Section 13, Section 14, and Section 15, except as modified in this part. (C) Meet or exceed the requirements of Section 17. (D) Meet or exceed the r...
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