TY - RPRT TI - Time scales of arsenic variability and the role of high-frequency monitoring at three water-supply wells in New Hampshire, USA AU - James R. Degnan AU - Joseph P. Levitt AU - Melinda L. Erickson AU - Bryant C. Jurgens AU - Bruce D. Lindsey AU - Joseph D. Ayotte PY - 2020 DO - 10.1016/j.scitotenv.2019.135946 UR - https://pubs.usgs.gov/publication/70209440 ID - 70209440 ER -