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DWR releases draft subsidence best‑management practice; urges regional coordination
Summary
The Department of Water Resources presented a draft Land Subsidence Best Management Practice document to the State Water Board, urging groundwater sustainability agencies to act now to avoid long‑term, irreversible subsidence and to coordinate regionally where subsidence crosses basin boundaries.
Sacramento — The Department of Water Resources (DWR) presented a draft Land Subsidence Best Management Practice (BMP) to the State Water Resources Control Board on Oct. 7, laying out technical guidance, monitoring expectations and management pathways for basins facing—or at risk of—land subsidence tied to groundwater extraction.
The BMP, DWR officials said, is intended as a practical, statewide guide for groundwater sustainability agencies (GSAs), regional agencies and the board’s staff. DWR Deputy Director Paul Gosselin said the document clarifies existing Sustainable Groundwater Management Act (SGMA) requirements and offers a tiered approach for basins depending on (1) whether subsidence has already occurred and (2) where basin groundwater levels are set…
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