Photograph of location of proposed spreading grounds for
	         recharge activity
Proposed Spreading Area

Key Issues

  • Groundwater is the primary source of water for this region with increasing water demand
  • Managed aquifer recharge is necessary to sustain projected future pumping levels

Solutions

  • Conduct a comprehensive basin-wide hydrogeologic investigation to characterize the subbasins, including perennial yield and groundwater quality
  • Develop management strategies to address long-term groundwater demand and quality
  • Construct and apply mathematical models to quantify impacts of water management strategies and inform groundwater management decisions

Recharge Feasibility Groundwater Modeling

Bighorn-Desert View Water Agency, San Bernardino County

Numerical groundwater modeling was conducted to assess impacts of managed aquifer recharge alternatives on groundwater sustainability
Map of southern California showing project location
Modeled groundwater flowpaths overlaid on map
Simulated Flowpaths
Modeled groundwater contours overlaid on map
Simulated Mounding

The Bighorn-Desert View Water Agency (BDVWA) operates within the boundaries of the Mojave Water Agency (MWA) in the western Mojave Desert of San Bernardino County. Groundwater is the primary source of water supply in the region, but increasing water demand is expected to stress limited groundwater resources in the future. BDVWA recognizes the need to manage groundwater within its jurisdiction to secure a safe, reliable, and sustainable water supply for current and future users. Proposed strategies involve enhancing recharge and management of pumping.

Todd Groundwater assisted BDVWA with a feasibility study for a recharge basin along Pipes Wash. The project involved enhanced recharge of imported State Water Project (SWP) water from the nearby Morongo pipeline to increase the reliability of the local groundwater supply. A field investigation was designed and implemented to gain information on how the recharge basin might best be operated in an area of municipal pumping. A MODFLOW/MODPATH groundwater flow model was constructed, calibrated, and applied to analyze the transport of recharge water and local benefits to nearby wells. The model was used to predict mound height, flow paths, and travel times of recharge water under simulated recharge conditions.