Preparation of plans and schedule for submission

(a) Each water company supplying water to 1,000 or more persons or 250 or more consumers, and any other water company requested by the commissioner, shall submit a water supply plan for approval in conformance with Sections 25-32d-1a through 25-32d-6, inclusive, of the Regulations of Connecticut State Agencies. (b) If the commissioner requests a water company to submit an initial plan, the water company shall submit the plan within two years from the date of the request. (c) If the commissioner requests a water company to submit a revised plan, the water company shall submit the plan within one year from the date of the request. (d) In preparing the plan, the water company shall: (1) Provide a separate analysis for each water supply system; (2) use gallons as a unit of measure; and (3) use the most current national geodetic vertical datum from the National Geodetic Survey, unless otherwise specified.