Lago Guajataca is a large public water system in EPA region 2 that provides tap water for the 00662 zip codes. It has 8 facilities where the water supply was tested for 68 chemical contaminants that impact tap water quality and human health.
The maximum reported level of HAA5 (five regulated haloacetic acids) was 101.88 µg/L. Some (3 of 16 or 19%) 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 34.225 µg/L. There were 2 contamintants found in the Lago Guajataca 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.
The latest water samples were taken on May 21st, 2025.