Water-level Contour Map of the Antelope Valley Groundwater Basin and Interactive Website, 2014

Science Center Objects

The USGS has a long history of collecting water-level data in the Antelope Valley groundwater basin. Previous water-level contour maps for Antelope Valley were published by the USGS in cooperation with the Antelope Valley – East Kern Water Agency as Open-File Reports 80-1222, 86-498 and 98-4022 using water-level data collected in 1979, 1984 and 1996, respectively. An updated water-level contour map will aid water resource managers in assessing recent groundwater conditions in the Antelope Valley.

Map of the Antelope Valley Groundwater Basin

Map of the Antelope Valley Groundwater Basin

Objectives will be:

  1. Data collected during the spring of 2014 as part of an existing USGS hydrologic monitoring program will be used to construct a 2014 water-level contour map for the Antelope Valley groundwater basin and will be published by the USGS in 2015.
  2. An interactive website utilizing a map-based interface specific to the Antelope Valley will be developed to allow direct public access to the spring 2014 map, historical USGS published water-level elevation maps, groundwater change maps, hydrographs for select wells, associated data stored in NWIS Web, and related reports available from the USGS. From the site, the reader will be able to view any of the data from previously published water-level reports, compare and view water-level data from any of the maps, and perform tasks such as querying and identifying data. The interactive website will be completed in two phases beginning in FY2014 and finalized in FY2015.

The proposed study addresses at least three of the priority water issues identified in the U.S. Geological Survey Water science strategy publications: effects of urbanization and suburbanization on water resources; effects of land use and population increases on water resources; and hydrologic system management. This proposed work will provide water managers with more detailed information with which to address important issues, such as managed aquifer recharge.

Water-level data collected by the California Water Science Center (CAWSC) Hydrologic Monitoring Program during the spring of 2014 will be used in conjunction with water-level data reported by local water agencies to construct the water-level contour map. The construction of the water-level contour map and interactive website will follow the model used by the USGS Mojave Water Resources study. All data will be reviewed and approved, and data quality codes set appropriately following USGS CAWSC data review procedures.