Who supplies my water · OR
Where Oak Hills's tap water comes from
EPA records point to Tualatin Valley Water District as the water system for Oak Hills.
Washington County · Population 11,903
The water system for Oak Hills
Tualatin Valley Water District
PWSID OR4100665 · Purity Score 94/100 (Excellent) · Confidence: moderate · Assessed at the water-system levelAbout 100% of Oak Hills's homes are inside Tualatin Valley Water District's service area (EPA service-area map).
Full water report for Tualatin Valley Water DistrictTualatin Valley Water District: contact and record
System-level records from EPA. Not a test of your tap.
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One email when Tualatin Valley Water District publishes a new sampling round, a result moves above or below its reference, or the system's score changes.
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