Committee discussed the ~$600K model calibration cost share among seven groups and gave its representative flexibility: start with 1/7, but may consider 2023 Exhibit B while seeking a faster/non-phased approach and stating Northern's expectation that this issue not become recurring. February monitoring showed no groundwater-level exceedances for Northern; nitrate/TDS wells are watch items. DWR subsidence/GSP meetings may occur mid-to-late June.
Cost-share debate on model calibration (options shown at ~$500K) continued; members discussed keeping the 1/7 cost share and/or consolidating smaller groups' seats. The Committee voted to support pursuing a WaterSMART grant (up to $400K; 50% match) if cost share is agreed. PRP reminders: metering due Jan 2026; aquifer-specific reporting required; 2026 lower-aquifer target: 1,805 AF.
Committee voiced support for proceeding with groundwater model calibration in 2026 rather than waiting, a perspective Vice Chair Lucchesi will bring to the JPA Board meeting the following Monday. Significant basin‑wide pumping data discrepancies were flagged, with a push for more consistent estimation methods across GSAs. Staff also noted the State Water Board is scheduled April 7 to act on returning the subbasin's GSP to DWR, increasing pressure to have defensible data and tools in place.
The Committee recommended member GSAs approve a Special Projects Agreement establishing governance structure under the new Joint Powers Authority, set to take effect March 1, 2026, maintaining current cost-sharing arrangements. The SGMA Round 1 Grant deadline requires all deliverables submitted by January 23, 2026, with final grant closeout in early March. JPA formation awaits one remaining member agency signature before holding its first organizational meeting.
The committee advanced a special projects agreement to maintain continuity under the new Joint Powers Authority structure while addressing multiple water quality exceedances for TDS and nitrate that require investigation protocols. With the SGMA grant deadline approaching December 31st, agencies must complete remaining deliverables and submit final materials by November 28th to ensure compliance and project completion.
