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OB GMA: Groundwater levels falling; new well logs show variable quality
Summary
OB GMA staff reported declining groundwater depths in June and limited surface flows; recent drilling produced new e-logs showing mixed water quality and several monitoring wells permitted inside OB GMA jurisdiction but outside the alluvium.
Jordan, the agency’s basin specialist, presented the OB GMA’s June assessment, telling the board the Key Well measured about 114.19 feet below ground surface, which the agency said corresponds to roughly 78% of basin capacity (about 62,400 acre-feet). He said the basin is continuing a seasonal decline and that an estimated 1,600 acre-feet of recharge reached this part of the basin in the 2024–25 water year.
The presentation included spot surface-flow measurements: sites such as Ladera Bridal were nearly dry (about 0.01 cubic feet per second), while San Antonio…
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