(a) The Commissioner of Public Health shall adopt regulations in accordance with the provisions of chapter 54 establishing standards to prevent contamination of public water supplies which may result from the installation of automatic fire extinguishing systems, irrigation systems or other physical connections between the distribution system of a public water system and any other water system in any building served by a public water system as defined in subsection (a) of § 25-33d. Regulations concerning automatic fire extinguishing systems shall: (1) Delete the requirement for a reduced pressure principle backflow preventer (RPD) on fire sprinkler systems with siamese connections unless chemicals are added to such systems; (2) require owners to install a double check valve assembly (DCVA) on fire sprinkler systems with siamese connections unless chemicals are added to such systems; (3) allow owners to install an RPD instead of a DCVA on fire sprinkler systems with siamese connections; and (4) provide that any person engaged in the installation of an automatic fire extinguishing system shall notify the water company servicing the building of such installation, and shall be subject to all applicable rules and regulations of such water company.

(b) The commissioner shall adopt regulations in accordance with the provisions of chapter 54 concerning automatic fire extinguishing systems that provide for a civil penalty of not more than two thousand dollars if a required device is not installed on existing systems by July 1, 1999, or if the required device is not installed on new systems after June 23, 1999.