Page 177 - Yucaipa Sustainable Groundwater Management Agency - Yucaipa SGMA

Palm Desert Aquifer Recharge Facility Study,
Relevant Experience:
Coachella Valley Water District (CVWD),
 Characterized groundwater level and water
quality conditions Riverside County
 Evaluated infiltration test results and CVWD is responsible for management of groundwater
assessed recharge capacities
resources across the Coachella Valley Groundwater Basin. Todd
 Prepared conceptual recharge facility design Groundwater was retained to assist CVWD in evaluating the
and engineering cost estimates feasibility of recharging up to 40,000 acre‐feet per year (AFY) of
 Constructed MODFLOW/MT3D model, Colorado River Water (CRW) at its Palm Desert property and in
simulated future recharge and recovery the adjacent Whitewater River Storm Channel. The purpose is
operations, and assessed groundwater flow to help mitigate historical groundwater level declines and
and quality changes improve groundwater quality primarily within the West
Active Dates: Mar 2016 – Dec 2016 Whitewater River Subbasin Area of Benefit, equivalent to a
SGMA‐defined management area.
Budget: $168,000
Reference: Todd Groundwater designed and completed the recharge
feasibility study that included (1) construction of a local
Mr. Steve Bigley
Director of Environmental Services MODFLOW/MT3D groundwater flow and solute transport
Coachella Valley Water District model to predict future dynamic water level and water quality
760.398.2651 impacts from CRW recharge (2) development of concept
sbigley@cvwd.org recharge facility designs and cost analyses (by project teaming
Key Todd Staff: partner, CWE), and (3) evaluation of regulatory permitting
requirements for re‐purposing secondary effluent discharge
Edwin Lin, Amber Ritchie
basins as recharge basins at the CVWD Water Reclamation
Plant (WRP) 10 facility and construction of silt berms in the
Whitewater River Stormwater Channel. Results of the study indicated that the proposed project can
accommodate the recharge goal. Recharge will provide long‐term water level and water quality benefits for nitrate
and chromium. CVWD has completed final designs and an EIR for a 25,000‐AFY project. Todd Groundwater is
assisting CVWD under separate a contract to satisfy revised Waste Discharge Requirement (WDRs) for the WRP
10 facility. Edwin Lin served as Project Manager. Amber Ritchie managed GIS and water databases and developed
detailed cross sections to support groundwater modeling.

Recharge Flowpaths and Mounding

TODD GROUNDWATER

Yucaipa Sustainable Groundwater Management Agency - August 9, 2018 - Page 174 of 208