Groundwater Science
Arsenic Contamination in Well Water: 10 PPB MCL Limits
How to evaluate private and municipal well water tests reporting arsenic in micrograms per liter or parts per million.
D
Dr. Elena Vance, PhD
Environmental Science Specialist
Arsenic Contamination in Well Water
Inorganic arsenic is regulated under the SDWA with a maximum contaminant level of 10 ppb (0.010 ppm).