Jump to main content.

Arsenic in Drinking Water



Image: Arsenic in Drinking Water
Arsenic in Drinking Water

Arsenic is a semi-metal element that is odorless and tasteless. It enters drinking water supplies from natural deposits in the earth or from agricultural and industrial runoff into groundwater.

Studies have indicated that arsenic concentrations greater than the EPA maximum concentration limit of 10 micrograms per liter occur in numerous aquifers throughout the country. Successful prevention of public exposure to arsenic in groundwater resources is dependent on scientifically based strategies for site remediation and water resource management.

EPA scientists are focusing their research efforts on optimizing remediation technologies and management approaches to protect groundwater resources from arsenic contamination. EPA is collaborating with the U.S. Geological Survey, Oklahoma State University, and the City of Norman, Oklahoma, to find a cost-effective solution for removing arsenic from the water supply wells in the City of Norman.


Smith, S.J., S.T. Paxton, S.C. Christensen, R.W. Puls, and J.R. Greer. Flow Contribution and Water Quality With Depth in a Test Hole and Public-Supply Wells: Implications for Arsenic Remediation Through Well Modification, Norma, Oklahoma, 2003–2006 (EPA/600/R-09/036) April 2009 | Abstract


Richard Wilkin

You will need Adobe Reader to view some of the files on this page.
See EPA's PDF page to learn more.

Office of Research & Development | National Risk Management Research Laboratory

Local Navigation

Jump to main content.