TY - RPRT TI - Factors affecting temporal variability of arsenic in groundwater used for drinking water supply in the United States AU - Joseph D. Ayotte AU - Marcel Belaval AU - Scott A. Olson AU - Karen R. Burow AU - Sarah M. Flanagan AU - Stephen R. Hinkle AU - Bruce D. Lindsey PY - 2014 DO - 10.1016/j.scitotenv.2014.02.057 UR - https://pubs.usgs.gov/publication/70110411 ID - 70110411 ER -