(a) Not later than three years after the adoption by the Commissioner of Energy and Environmental Protection of a model municipal aquifer protection ordinance under § 22a-354l, each public or private water company serving at least one thousand persons but not more than ten thousand persons shall map areas of contribution and recharge areas at level A for each existing stratified drift well located within its water supply area.

(b) Each public or private water supply company serving at least one thousand but not more than ten thousand persons shall map areas of contribution and recharge areas for all of the potential wells located in stratified drift aquifers identified as future sources of water supply in accordance with the plan submitted pursuant to § 25-33h at level B not more than two years after the Commissioner of Energy and Environmental Protection requests such mapping.

(c) For the purpose of this section, any community water system which is part of an existing water company but which is not physically connected to such existing water company shall be considered a separate water company for purposes of determining the number of persons served by the existing water company’s system and any of its separate systems.