City of Norwalk Water Dept. is a large public water system in EPA region 09 that provides tap water for the zip codes. It has 14 facilities where the water supply was tested for 23 chemical contaminants that impact tap water quality and human health.
The maximum reported level of HAA5 (five regulated haloacetic acids) was 8.47 µg/L. The maximum reported level of Manganese was 23 µg/L. There were 2 contamintants found in the City of Norwalk Water Dept. 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.