The State Water Board has developed this web-based map to assist property owners in determining whether they may be affected by the new policy. This map identifies the presence of nutrient- or pathogen-impaired waters listed on Attachment 2 of the OWTS Policy near a property.

Enter an address or double-click on the map to discover the presence of any Attachment 2 waters within 2000 feet of that point.

Note: the presence or absence of impaired waters within 2000 feet of a property does not constitute a final determination that system upgrades are required.