Fairfield is the county seat of Solano County, home to roughly 120,000 residents and positioned midway between the San Francisco Bay Area and Sacramento. The city’s treatment options reflect the county’s organized substance use disorder treatment system, with most programs operating under layered oversight from both the state and Solano County Behavioral Health (SCBH).
All residential detox and substance use disorder treatment programs in California must be licensed by the California Department of Health Care Services (DHCS). Under California Health and Safety Code Section 11834.015, licensed facilities are also required to hold at least one ASAM level of care designation. Outpatient programs seeking Drug Medi-Cal reimbursement must obtain a separate DHCS certification, and SCBH administers county-funded SUD services and serves as the local entity for Drug Medi-Cal program oversight and accountability.
Two major investments will expand Fairfield’s capacity in the coming years. In March 2026, Solano County received $37 million through Round 2 of California’s Behavioral Health Continuum Infrastructure Program, funded by the voter-approved Proposition 1 behavioral health bond, to support a new Solano Behavioral Health Recovery Campus in Fairfield, with construction expected to begin in 2027 and completion targeted for December 2028. Separately, NorthBay Health received $14 million through the same program to develop a Behavioral Health Urgent Care and Addiction Medicine Center in Fairfield, expected to open by June 2028.
Solano County’s 24/7 Mobile Crisis Team launched countywide in May 2024 through a partnership with Pacific Clinics. It is available to anyone experiencing a substance use crisis and can connect callers to detox and treatment resources. For anyone beginning their search, understanding how to choose a detox center can help narrow down the right level of care and avoid programs that do not meet clinical standards.
