North Alamo WSC is a large public water system in EPA region 06 that provides tap water for the 78538, 78549, 78570, 78589 zip codes. It has 8 facilities where the water supply was tested for 23 chemical contaminants that impact tap water quality and human health.
The maximum reported level of 1-butanol was 2.9 µg/L. The maximum reported level of HAA5 (five regulated haloacetic acids) was 61.181 µg/L. Some (1 of 11 or 9%) of the latest water samples showed levels of HAA5 (five regulated haloacetic acids) that were at or above unsafe concentration levels. The maximum reported level of Manganese was 7.4 µg/L. There were 3 contamintants found in the North Alamo WSC water supply at levels that were above the minimum reporting level. 1 of the contaminants were above the reference level, which means they may pose a risk to human health.