Oroville planning commission certifies mitigated negative declaration for three-site solar project amid Superfund and health concerns

The Oroville Planning Commission on Nov. 10, 2025 certified a mitigated negative declaration and advanced related permits for a three-site solar project that includes the former copper Superfund parcel, a 50-acre site on South 7th Avenue (the "Sillers" site), and an added 16-acre Reynoso parcel. The commission voted 5-0, with two members absent, to adopt the environmental determination and move forward with the project (motion recorded at SEG 828-840).

Staff said the project had been pulled in October to allow a more thorough California Environmental Quality Act (CEQA) review; that review is now complete and the mitigated negative declaration (MND) and mitigation monitoring and reporting program are in the packet (SEG 058-066, SEG 090-093). Staff reported four comment letters were received during the public review period, including from the Department of Toxic Substances Control, the California Department of Fish and Wildlife and the copper-site managers; staff said those comments do not require additional analysis in the MND but the city biologist recommended adding a pre-construction 500-yard survey for the tricolored blackbird as a precautionary mitigation measure (SEG 069-083, SEG 076-087).

Several members of the public urged more caution. Linda Draper, speaking for a local dioxin education group, said the South 5th Avenue/former plant parcel remained contaminated with dioxin and urged the commission to pause approval so residents would not be exposed; she cited local cancer statistics and said prior public engagement had been limited (SEG 200-264). Kathy raised environmental-justice concerns for South Oroville, pointed to the MND text saying the project lies within the copper Superfund site and asked whether the district attorney, county public health and county environmental health had been involved (SEG 391-460). Skipper Clark and Brian Wong asked about future industrial users, water supply and how the projects would affect local power rates and the proposed Oroville public utility district (SEG 295-345, SEG 347-388).

Project representatives and staff responded that the solar project is separate from any planned biomass facility. Staff and the applicant said construction would be primarily on top of the ground using ballast foundations and surface-mounted conduits, with no planned excavation below five feet and only perimeter fence posts potentially penetrating the soil (SEG 525-538, SEG 626-673). Patrick (staff) and applicant Michael Spencer (Breed/Breeze team) both told the commission the solar project can stand alone and that the offtaker will be the Oroville public utility; as a public utility, staff said, supplies would be used within city limits and not exported (SEG 623-731). The applicant also said the biomass project would not submit permits for some time and would likely not be built until about 2029 (SEG 547-558).

Staff outlined two decision options: approve all three sites under the MND (staff'recommended) or approve only the Sillers site now and hold the others for further review (including anticipated DTSC review) (SEG 111-149). Commissioners asked questions about ongoing monitoring and the role of state and federal agencies; staff said the site will be monitored for many years (decades) and that the final site plan will be scrutinized by DTSC, U.S. EPA and Beazer (the current site operator) and only areas approved by those agencies would be developed (SEG 792-824).

A commissioner moved to certify the mitigated negative declaration (referred to in the record as adopting measure "20 20 p 20 25 - 23"); another commissioner seconded, and the motion passed with five votes in favor and two absences recorded (SEG 828-840). A subsequent motion to adopt the staff recommendation and proceed with permits likewise passed by the same tally (SEG 841-848).

What happens next: building plans for the Sillers/South 7th site have already been submitted and will be reviewed against the mitigation measures; the Copper and Reynoso parcels will require coordination with DTSC and other agencies before ground-disturbing work in sensitive areas (SEG 094-103, SEG 130-136, SEG 792-804). The commission adjourned to its regular meeting on Nov. 20, 2025 (SEG 855-856).

The record contains multiple, competing public concerns about health risks tied to historic contamination and community representation at planning discussions; staff and the applicant have documented mitigation measures and agency oversight that they say address those issues. The commission's action certified the CEQA determination and authorized staff to proceed with the permitting process under the conditions in the packet.