Vina Subbasin / Groundwater planning
Bringing biochar into groundwater planning
Biochar Coalition contributed a soil-water resilience proposal, public comment, and follow-up correspondence to the Vina Subbasin's groundwater planning process. Our focus is practical field evaluation that connects soil health, responsible biomass use, and water resilience.
Biochar is included in the draft Periodic Evaluation
The September 2026 public draft lists a biochar project in section 4.5.3 under Other Projects. The August 12 meeting minutes record direction to include six proposed concepts in the public review draft.
This gives biochar a documented place for further evaluation. Project partners, funding, and local performance data will shape any field implementation.
Our contribution
We submitted a technical memorandum proposing a voluntary, monitored biochar pilot and participated in the August 12 joint meeting of Vina GSA and Rock Creek Reclamation District GSA. Our proposal separates soil-water retention, reduced irrigation pumping, and groundwater recharge so that each outcome can be evaluated on its own evidence.
In an August 17 reply, County staff confirmed the Boards' direction to include the biochar project in the Periodic Evaluation (PE). The October 6 follow-up confirmed its place in the draft and identified possible letters of support for grant and partnership efforts.
The broader project concept was provided by Audubon, and the draft identifies California Open Lands as the prospective lead. Biochar Coalition's role here is technical input, public participation, and continued follow-up.
- Technical memorandum formally transmitted to staff and planning recipients.
- Joint meeting considers new project concepts; Vina's recorded action directs their inclusion in the public draft.
- Public draft released with a biochar project in section 4.5.3.
- Staff follow-up identifies a possible support-letter pathway for grants and teaming.
Three documents from our participation
Select a document to read it below.
01 / Technical proposal Biochar Soil-Water Resilience Memorandum Proposes a voluntary, monitored pilot to evaluate soil-water retention, irrigation demand, and beneficial use of clean residual biomass. It distinguishes root-zone water storage, avoided pumping, and groundwater recharge. View memorandum Close viewer
02 / Transmittal and staff follow-up Correspondence with Butte County staff Includes staff's August 17 confirmation of direction to include the biochar project in the PE, and the October 6 follow-up on draft inclusion and possible support for grant and partnership efforts. View correspondence Close viewer
The official planning record
Agency-published records show the decision, the draft project listing, and the meeting context.