City of McKinney is a large public water system in EPA region 06 that provides tap water for the 75069 - 75072 zip codes. It has 2 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 26.36 µg/L. The maximum reported level of Manganese was 4.9 µg/L. There were 2 contamintants found in the City of McKinney 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.