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Clear Path Canyon project presented; hydrology consultant argues regional recharge and monitoring will avoid groundwater impacts
Summary
County staff introduced Clear Path Canyon LLC’s proposal for up to 15 acres of outdoor cannabis cultivation across two parcels near Clear Lake. Consultants presented a detailed hydrology assessment concluding that deep wells and basin storage can support the project and proposed a groundwater monitoring program; tribal consultation with Koi Nation was reported as completed and confidential monitoring conditions were noted. The hearing continued to a later session for additional review.
County staff introduced the Clear Path Canyon major use permit (PL‑25‑492) on April 9 as a project proposing up to 653,400 square feet (15 acres) of outdoor commercial cannabis across a roughly 302‑acre parcel cluster near Clear Lake. Trish Turner explained the scope and noted that the City of Clear Lake provided a conditional letter of support; staff also said the project area lies close to the city sphere of influence and that Koi Nation requested and completed consultation with the applicant under AB 52.
Why water was front and center: Consultants presented a careful, conservative hydrology analysis after earlier public concerns about cumulative groundwater impacts arising from previous hops and vineyard irrigation in the Burns Valley area. The consultant explained methodology in detail: using high‑end, conservative per‑acre water‑use values for cannabis canopy and a longer season assumption (to stress‑test the model), mapping recharge areas and existing irrigation, and comparing projected annual demand to long‑term average recharge and usable basin storage. That analysis concluded the Clear Path Canyon proposal’s incremental demand would be a small fraction of local deep‑aquifer capacity and that Burns Valley long‑term recharge exceeded projected demand when modeled at conservative assumptions.
Groundwater monitoring and drought conditions: Staff and consultant described proposed conditions requiring baseline spring/fall measurements, in‑season twice‑weekly monitoring during cultivation, hydrograph reporting to the county and drought cutbacks tied to monitoring results (the applicant offered acreage reductions in moderate and extreme drought conditions). Staff said these monitoring and reporting conditions have been added to the draft conditions of approval.
Tribal consultation and biology: Turner reported that Koi Nation expressed interest and that an executed tribal monitoring/agreement is part of the confidential record; staff listed tribal cultural resources conditions TCR‑1 through TCR‑5 and cross‑referenced biological mitigation included in the draft MND. Public commenters had earlier raised questions about species such as local hitch (fish) in nearby waterways and the consultant noted the project was designed to avoid streamside setbacks and that no tree removal or direct hydrological connection to Adobe Creek was proposed for the cultivation areas shown.
Next steps: The presentation ran to a scheduled break and the hearing was continued for further questions and deliberation after lunch. Staff included new language requiring on‑site groundwater monitoring, drought‑response reductions, and NFPA‑compliant fire‑water hookups in conditions that would apply if the commission proceeds to decision.
Ending: No final decision was recorded at the April 9 session; staff and consultants will return to complete the record and answer additional technical and agency questions.
