City of Hanford is a large public water system in EPA region 09 that provides tap water for the 93230 zip codes. It has 17 facilities where the water supply was tested for 20 chemical contaminants that impact tap water quality and human health.
The maximum reported level of HAA5 (five regulated haloacetic acids) was 12.5 µg/L. The maximum reported level of Manganese was 30 µg/L. There were 2 contamintants found in the City of Hanford water supply at levels that were above the minimum reporting level. 0 of the contaminants were above the reference level, which means they may pose a risk to human health.