EPA Code 1005 · Maximum Contaminant Level Exceedance
violations
EPA Limit
0.01 mg/L
Last Reading
.015 MG/L
First Reported
Oct 2025
Most Recent
Oct 2025
What this violation means
Arsenic is a known human carcinogen that occurs naturally in groundwater across many parts of the United States, especially the Southwest and parts of New England. Long-term exposure even at low levels has been linked to bladder, lung, and skin cancer, as well as cardiovascular disease and developmental effects in children.
Recommended precautions
- →Reverse osmosis filtration removes arsenic effectively.
- →Distillation also removes arsenic — point-of-use distillers work for drinking and cooking water.
- →Boiling does NOT remove arsenic. It actually concentrates it as water evaporates.
- →If your well water has arsenic, test annually and treat at the point of entry.