Trinity County, CA Swimming Pools & Spas: Safety Rules (2026)

Trinity County, which is entirely unincorporated, enforces pool safety through two layers. First, the County's zoning code (Section 17.30.070) requires every pool to be completely enclosed by a six-foot fence with self-latching gates and keeps filter/heating equipment at least twenty feet from neighboring dwellings. Second, the County issues building permits under the adopted California Residential Code, which incorporates the statewide Swimming Pool Safety Act (Health & Safety Code 115920-115929). Under HSC 115922, when a building permit is issued for a new pool or spa or a remodel at a private single-family home, the pool must include at least two of seven approved features: (1) an isolating enclosure meeting Section 115923; (2) approved removable mesh fencing with a self-closing, self-latching gate; (3) an approved safety pool cover; (4) exit alarms on doors and windows facing the pool; (5) self-closing, self-latching devices on doors with a release at least 54 inches high; (6) an approved in-water alarm; or (7) other equivalent protection verified by an approved laboratory. New pools and spas also need approved anti-entrapment drain covers and proper suction-outlet design (HSC 115928). These are minimum life-safety standards; the County may apply additional local requirements at permit. Verify current rules with the Trinity County Building Division.