State regulator: Regulation 43 provides minimum standards; locals may adopt stricter OWTS rules
Feb 19, 2026
A CDPHE on-site wastewater coordinator told Lake County's board Regulation 43 sets statewide minimums and local jurisdictions may adopt more stringent OWTS rules; he clarified which state provisions apply to vaults and which do not.
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Steve Proise, the state's on-site wastewater coordinator, attended the hearing and told the Lake County Board of Health that Regulation 43 is designed as a minimum standard and that counties must adopt a local regulation within one year of state changes. He emphasized that local governments may adopt more stringent requirements tailored to their geology and environment.
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