GSA advisory committee debates storage options as critics attack "valley‑wide" problem statement and project assumptions

Members of the Royseco Groundwater Sustainability Agency and public commenters discussed project alternatives to address seawater intrusion and long‑term supply needs, and several members of the public criticized a draft “problem statement” used by the Salinas Valley Basin GSA advisory committee.

The agency’s general manager summarized presentations from a recent Salinas Valley Basin GSA advisory committee meeting. He said one project under consideration is an aquifer storage and recovery (ASR) scheme that would capture unallocated Salinas River flows, treat them, and inject them into the basin. He told the board the ASR concept faces technical and economic challenges because river flows vary widely: “If you build a plant for the big peak, most of the time, it never gets used,” the general manager said, and designing to median flows may be insufficient to curb seawater intrusion.

The general manager also described a brackish extraction and treatment concept near the coast that would extract and treat brackish groundwater for urban delivery. He said that project currently shows better performance metrics but carries a very high estimated cost — “over a billion dollars,” he said — making it unaffordable without additional funding or alternative approaches.

Multiple advisory‑committee participants and board members emphasized a recurring theme: the region needs more storage, particularly in the north end of the valley, and projects focused solely on ASR may not provide the needed volume. “Storage is the thread I heard most of the day,” the general manager said.

Public comment focused heavily on a draft valley‑wide problem statement presented to the advisory committee. Tom Vercick, a public commenter, said that the statement’s phrasing was inaccurate and overbroad, particularly a passage asserting that groundwater is the primary water source for all users in the Salinas Valley. Vercick said that language was factually incorrect for some communities and threatened the credibility of the problem statement; he said he would raise formal objections and attend upcoming committee meetings.

Other public commenters cited historical extraction studies and contested numbers in the problem statement during the meeting record, urging the advisory committee and staff to refine the wording before it proceeds through committee review. Agency board members and staff agreed they would participate in committee refinements and suggested the problem statement still requires more work before being finalized.

No formal project approvals or policy adoptions occurred at the meeting; staff gave the board an informational briefing and said cost and feasibility remain outstanding questions to be resolved through continued advisory‑committee work and subsequent GSP updates.