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Agency authorizes four monitoring wells in perched aquifer to fill data gaps in San Antonio Creek corridor
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Summary
The Ohio Valley Groundwater Management Agency approved installation of four monitoring wells at three sites to document perched‑aquifer connectivity, with staff estimating permitting will take a month and drilling about two weeks; board directed coordination with state agencies and Casitas.
The Ohio Valley Groundwater Management Agency voted Sept. 25 to authorize installation of four monitoring wells at three locations to address data gaps about the perched aquifer and its connectivity to San Antonio Creek.
General Manager Julia and staff described the proposal: one well off Creek Road near Ventura Street, one at Casitas’ Ohio Valley pump plant, and two at Casitas’ Ohio well field. The wells will provide water‑level, water‑quality and temperature data to compare the perched system to San Antonio Creek and the alluvial aquifer.
Jordan explained the sites were selected based on logistics, landowner willingness and technical need; he said the purple shading on the project map indicates the current staff interpretation of the perched aquifer limits. Jordan advised the board that hand augering could be attempted (lower cost) and that a drill rig would be used if necessary, which would raise the fee.
Board members asked whether the data would be accepted by outside agencies. Jordan and other staff recommended outreach and coordination with DWR and other agencies to ensure the monitoring data are accepted for regulatory and modeling purposes. Jordan estimated permitting would take roughly a month and drilling about two weeks, and said the team’s goal is to have the wells installed by Dec. 1 to avoid wetter conditions.
The board approved the proposal by roll call vote and directed staff to coordinate with Casitas and relevant state agencies on permits and data acceptance procedures.
