Observation wells used in the creation of the generalized potentiometric surface of the Arikaree aquifer, Pine Ridge Indian Reservation and Bennett County, South Dakota

This data set describes observation wells completed in the Arikaree aquifer that were
used to create a map of the generalized potentiometric surface of the Arikaree aquifer
in the Pine Ridge Indian Reservation and Bennett County. The observation wells are
owned by the South Dakota Department of Environment and Natural Resources. Water
levels in the wells were measured by staff of the South Dakota Department of Environment
and Natural Resources. The water-level data for this data set are based on the average of
measured values for the well from completion through 2005. The range in water-level data
for this data set was from 1977 to 2005. All water levels were retrieved from the U.S. Geological
Survey's NWISWeb database at http://nwis.waterdata.usgs.gov/sd/nwis/gwlevels.