Water Quality Update – November 18, 2025
CITY OF MATTOON Water Quality Update – November 18, 2025 Current Sample Sample collected on November 17th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.045 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb. We will continue to sample per-EPA guidelines. Results will continue to be posted on the City’s website PAST SAMPLES Sample collected on November 16th showed non-detectable levels of harmful algal bloom neurological toxin in the drinking water at 0.027 ppb which is considered non-detect under the EPA recommended advisory levels of .30 ppb. Sample [...]


