City of Healdsburg is a large public water system in EPA region 9 that provides tap water for the 95448 zip codes. It has 10 facilities where the water supply was tested for 78 chemical contaminants that impact tap water quality and human health.
The maximum reported level of HAA5 (five regulated haloacetic acids) was 24.75 µg/L. The maximum reported level of Manganese was 22 µg/L. There were 2 contamintants found in the City of Healdsburg water supply at levels that were above the minimum reporting level.