TY - RPRT TI - A comparison of recharge rates in aquifers of the United States based on groundwater-age data AU - P.B. McMahon AU - Niel Plummer AU - J.K. Böhlke AU - S.D. Shapiro AU - S.R. Hinkle PY - 2011 DO - 10.1007/s10040-011-0722-5 UR - https://pubs.usgs.gov/publication/70034203 ID - 70034203 ER -