Carlotta cannabis farm expansion faces odor and water scrutiny

A bigger harvest at 6287 State Highway 36 would go to Carlotta Gardens LLC, but the nuisance would land next door. The company is seeking a permit change to add 20,000 square feet of outdoor cannabis in Carlotta, a proposal that would bring total cultivation on the property to 70,000 square feet and deepen familiar Humboldt County fights over odor, water draw, and rural quality of life.

The site sits on the north side of Highway 36 near Hagwood Lane, within the Hydesville-Carlotta Community Planning Area and zoned Agriculture Exclusive. County staff estimated the expansion would require 1.76 million gallons of water a year, about 23.1 gallons per square foot, supplied from a permitted groundwater well and 5,000 gallons of storage. The application also seeks an exception from the county’s 600-foot setback requirement for residences on separately owned parcels in Community Planning Areas, a detail that puts nearby homeowners squarely in the path of any larger footprint.

That is why the proposal has drawn scrutiny from a neighboring property owner who says the odor is already a serious problem. The complaint turns an abstract land-use file into a daily-life issue for rural residents who may have to live with more smell and more water pressure from a business that wants to scale up. In a county where cannabis remains an economic mainstay for some growers, the question is whether expansion can happen without shifting the hidden costs onto the people living closest to the fields.

Humboldt County Planning Commission staff recommended approval, saying the project complies with the General Plan and Zoning Ordinance and would be subject to annual compliance monitoring. The project is not appealable to the California Coastal Commission, leaving the Planning Commission as the key public-review forum for the decision.

County officials have also built cannabis water policy around conservation and enforcement. Humboldt County Cannabis Services says the County Water Quality Improvement Program, created through the Commercial Cannabis Land Use Ordinance, is funded by fines and penalties from cannabis civil enforcement actions. County planning staff have also described watershed caps in the cannabis ordinance, intended to limit cultivation and protect water resources, a reminder that this debate is part of a larger countywide attempt to tie cannabis growth to watershed health.

Carlotta Gardens has been through county review before. A 2023 permit modification covered a 200-square-foot portable farm stand for farm-based retail products, including cannabis grown on site. That longer permitting history makes the current expansion look less like a one-time request than another step in a continuing test of how much a rural neighborhood around Carlotta can absorb before the business benefits begin to feel out of balance with everyday life.