Well 18E Ribbon Cutting
Well 18E Rehabilitated to Support Sustainable Water Management in Yucca Valley
Hi-Desert Water District is pleased to announce that Well 18E at the historic Warren’s Well site — a location central to the region’s water legacy — has undergone significant upgrades to enhance water management and sustainability in the Warren Valley Groundwater Basin.
Well 18E, located in the mid-basin of the Warren Valley Groundwater Basin, played a foundational role in Yucca Valley’s early development. Though Well 18E has been offline since 2010 due to water quality issues in the basin, water quality tests have shown improvement in the quality of groundwater at the well site. Bringing this well back online will help distribute pumping more evenly across the basin, supporting long-term aquifer health and groundwater sustainability.
WELL 18E Upgrades and Water Quality Improvements
Well 18E, situated at the Warren’s Well site, was taken out of service in 2010 after arsenic levels exceeded the state’s maximum contaminant level (MCL) of 10 parts per billion (PPB). Thanks to natural attenuation and careful monitoring, the well’s arsenic levels have significantly decreased — averaging just 4 PPB over the past two years, well below the MCL.
The site has received upgrades to bring it back online:
• Demolition and Reconstruction: Removal of the old chlorine building and installation of a new concrete pad and chlorine structure.
• Electrical and Mechanical Improvements: Electrical lines have been run to the new building, which has been equipped with modern chlorine treatment systems.
• System Automation: Upgraded onsite telemetry system and the installation of a new cabinet enclosure to improve operational monitoring and control.
• Security Enhancements: Replacement of the old wooden fencing with a durable, modern chain link Priva-Max fence, including modifications to existing posts and the addition of new gates.
A Balanced Approach to Water Pumping
The strategic location of Warren’s Well in the middle of the basin allows for a more balanced approach to groundwater extraction. By reducing stress on other areas of the aquifer, the District can maintain more sustainable groundwater levels and support long-term resource health.
“Reviving Well 18E at the Warren’s Well site, along with improvements to the fence and cleaning up the historic site, brings new life to this relic,” said Jennifer Cusack, Director of Public and Government Affairs. “This project honors our history while securing a more resilient water supply for our customers.”
Hi-Desert Water District remains committed to proactive water management and infrastructure investments that preserve local resources and meet the needs of residents and businesses.