A buyer walking a vineyard property on Alexander Valley Road this fall will hear the same script every agent uses out there: the AVA, the soil, the vine age, the frontage on the Russian River. What almost nobody mentions is that the ground under those vines is currently the subject of a landowner election that will decide who pays for water, who gets a vote on it, and who gets left out entirely.
That election is not hypothetical. It is moving through the Sonoma Local Agency Formation Commission right now, and it splits Alexander Valley into two water futures that have nothing to do with the AVA line on the label.
The diversion that has run since 1922 is going away
Alexander Valley's Russian River flows and its groundwater are the same water supply that has, for more than a century, been supplemented by an Eel River diversion called the Potter Valley Project. PG&E's Scott Dam, completed in 1922, and its Cape Horn Dam have run that transfer ever since, sending Eel River water over the hills into the Russian River watershed. PG&E decided in 2019 that continuing to operate the project no longer made economic sense, and it faced a January 2025 deadline to file its license surrender application with federal regulators. That surrender and decommissioning proposal is now before the Federal Energy Regulatory Commission. Engineers have since flagged significant seismic risk at Scott Dam itself, which has pushed the decommissioning timeline from a maybe to a when.
A coalition of water agencies, tribes, and conservation groups has proposed a smaller replacement, the New Eel-Russian Facility, to keep some water moving into the Russian River. That project is still in federal environmental review. The Federal Energy Regulatory Commission closed its public comment period on the surrender and the new facility's scoping in late July 2026, and a Mendocino Voice report published this August cited preliminary modeling suggesting the replacement could keep roughly as much water flowing annually as today's system, with more of it arriving in the wet winter months rather than the dry summer months growers actually need. Preliminary is the operative word. Nothing is built, and nothing is guaranteed.
The vote landowners are being asked to cast
Facing that uncertainty, a group of agricultural landowners organized as the Russian River Property Owners Association petitioned Sonoma LAFCO to form a new landowner-governed water district: the Alexander Valley Water District. The petition filed with LAFCO already had support from owners of just over half the acreage inside the proposed boundary.
Forming the district takes four steps. Owners of 50.1 percent of the acreage inside the boundary have to sign a petition. A mail ballot then asks all landowners in the boundary whether to form the district, decided by a majority of acres voting, not a majority of people. A five-member board is elected the same way, with only landowners eligible to serve. Once seated, that board initiates a Proposition 218 assessment, the same legal mechanism cities use to fund special assessment districts, to actually pay for the water programs the district was formed to run.
The most recent public update on the effort, posted in March 2026, showed the Russian River Property Owners Association still soliciting candidates for that first board, which means the formation process was active but not finished as of that date. Sonoma LAFCO had the proposal on its agenda for an April 1, 2026 hearing in Santa Rosa. No district exists yet. The vote is coming.
Landowners have been warning about the stakes since the effort began. In early 2023, when the push to form a new district was still taking shape, local land use planner Walter Kieser told the Healdsburg City Council why the group saw the situation as urgent.
"We are facing a threat situation," Kieser said. "This isn't normal."
Why the boundary matters more than the AVA name
Here is the part a listing sheet will never tell you. The proposed district boundary covers an estimated 28,723 acres running along the Russian River, starting about 1.5 miles south of the Mendocino County line near Cloverdale and ending roughly 3 miles east of Healdsburg. But it only covers the valley floor and the interconnected groundwater basins beneath it. Public land, tribal trust land, the Chalk Hill uplands, and the upland area near Franz Valley are all excluded.
That means two vineyard parcels can both carry the Alexander Valley AVA on their wine labels while sitting in completely different water futures. A valley-floor block inside the boundary will have a vote on district formation, a voice on the board, a stake in the Russian River Voluntary Water Sharing Program the district would manage, and eventually a line-item assessment on its water bill. A hillside block just outside the boundary gets none of that. No vote, no seat, no assessment, but also no formal claim on whatever coordinated water-sharing arrangement the district eventually negotiates.
The district exists because the current situation leaves both groups exposed. The Alexander Valley aquifer and the river reach it feeds are the sole water source for the cities of Healdsburg and Cloverdale, three tribes, more than 60 private and mutual water companies, thousands of domestic wells, and 43 wineries. Right now, none of those agricultural, residential, and commercial water users has a formal seat at the table when federal and state agencies make decisions about the river's future. The district is an attempt to build one, but only for the acreage inside its line.
What the assessment would actually cost
The district's own plan of service lays out draft assessment rates that would be finalized by the elected board and subject to landowner protest under Proposition 218. As currently proposed:
| Land use | Proposed maximum assessment |
|---|---|
| Irrigated agricultural parcel | Up to $20 per acre |
| Non-irrigated agricultural parcel | Up to $1 per acre |
| Commercial or industrial parcel | Up to $400 per parcel |
| Single-family residential parcel | Up to $50 per unit |
| Multi-family residential parcel | Up to $25 per unit |
Those rates, if adopted as proposed, would generate an estimated $514,000 a year for the district's initial operations and water-sharing programs. For a 20-acre irrigated vineyard block, that is $400 a year, not a dealbreaker on its own. The number matters less than the fact that it did not exist a few years ago and is being set by a board that does not exist yet, for a water supply arrangement that is still being negotiated at the federal level.
What to actually ask before you write an offer
- Confirm whether the specific parcel sits inside the proposed AVWD boundary or in the excluded uplands. The district's own boundary lookup tool will show this by address or parcel number.
- Ask whether the seller has signed the formation petition and how they intend to vote, since ballots are mailed to the landowner of record.
- Ask whether the parcel currently participates in the Russian River Voluntary Water Sharing Program that began as a 2022 drought-emergency measure and that the new district would expand.
- Ask your well contractor or water consultant whether the parcel draws from a domestic well, an agricultural well, or surface diversion, since each is treated differently in the district's plan of service.
- Ask when the formation election is expected to go to ballot. The most recent public update, from March 2026, showed the board candidate window still open and no vote yet scheduled, but confirm current status before assuming that hasn't changed.
None of this changes what the vines are worth today. It changes what you are actually buying into for the next decade of ownership.
Frequently Asked Questions
Does this affect vineyard land in Dry Creek Valley or Russian River Valley near Healdsburg? Not directly. The proposed district's boundary is drawn around the Alexander Valley groundwater basins specifically. Dry Creek Valley and Russian River Valley properties draw on different water sources and are not part of this proposal.
Is the water district a done deal? No. The formation petition filed with Sonoma LAFCO had support from owners of just over half the boundary's acreage, and Sonoma LAFCO was still reviewing the proposal at an April 2026 hearing. The process still requires a landowner election and a board election before any assessment can be adopted, and the most recent public update on that timeline was from March 2026.
Does this mean Alexander Valley is running out of water? It means the historical Eel River supplement to the Russian River is being phased out as PG&E decommissions the Potter Valley Project, and the region is organizing to manage what remains. Whether the replacement facility fully offsets the loss is still being studied.
Water governance rarely shows up in a comparative market analysis, but it shapes what a vineyard property is actually worth to hold for the next twenty years. If you are evaluating land in Alexander Valley or anywhere else in the Healdsburg wine country, Sudha Schlesinger can walk the parcel-level detail with you before you write an offer. Request a Private Consultation to start that conversation.