Connecticut Administrative Code › Title 16 - Public Service Companies › 262m - Certificates of Convenience and Necessity for Small Water Companies › Section 16-262m-8 - Design criteria

Current through July 10, 2024
All community water systems proposed for construction or
				expansion in accordance with Section
				16-262m
				of the General Statutes of Connecticut shall be designed substantially in
				accordance with the technical standards enumerated herein.
(a) For the purposes of this Section and
			 Sections
			 16-262m-5,
			 16-262m-6
			 and
			 16-262m-7
			 inclusive, the following definitions shall apply:
(1) "Anticipated Average Daily Demand" shall
			 mean the estimated normal water usage of the system as determined for the most
			 representative 24 hour period of record not affected by unusual demand
			 conditions such as drought or a significant temporary increase in
			 demand;
(2) "Peak Hour Demand"
			 shall mean largest hourly volume of water consumed and shall be considered ? of
			 the average daily demand;
(3)
			 "Design Population" shall mean the estimated number of people per service
			 connection, calculated as follows, unless specific circumstances dictate
			 otherwise:
Type of service
Design Population Per Service
						  Connection
Single family dwelling
4
(Over 3 bedrooms add 1 person per additional
						  bedroom)
Multi-dwelling (i.e. apartments, elderly housing
						  duplexes, townhouses and, residential condominiums
One bedroom unit
2
Two bedroom unit
3
Three bedroom unit
4
(over 3 bedrooms add 1 person per additional
						  bedroom)
Mobile Homes or Trailers
2.5
Convalescent Homes
Use Number of Beds
All other components described in
						  16-262m-1(a)
Use Estimated Population
(4)
			 "Safe Daily Yield of a Water Supply System" shall mean the amount of water
			 which can be delivered to the system from all the system sources at the safe
			 yield rate simultaneously in an 18 hour period expressed in gallons per
			 day;
(5) "Safe Yield of a Well"
			 shall be calculated as follows:
(A)
			 Unconsolidated aquifer ground water sources. The safe yield shall be based on
			 an analysis of the impact of minimum water table elevations projected in a dry
			 period on the yield of the well(s) and an analysis of critical impacts such as
			 decreased stream flow or induction of pollutants.
(B) Confined and bedrock aquifer ground water
			 sources. Safe yield shall be equal to 90% of the hourly yield of the well
			 multiplied by 18 hours of pumping per day except that the safe yield may be
			 less when utilization of this yield will have unacceptable impacts or when
			 historical reports or other information indicates that the safe yield is less.
			 Hourly well yield shall be based on a pump test during which the cone of
			 depression caused by the pumping of the well shall be stabilized for at least
			 24 hours;
(6) "Source"
			 shall mean any Department of Health Services approved well, spring, reservoir
			 or other location where water is siphoned, pumped, channeled or drawn for use
			 in a potable water supply;
(7)
			 "Source of Pollution" shall mean any place from which stems or condition which
			 may cause pollution of a ground or surface water supply. It may include but not
			 be restricted to a watercourse including any stream, pond, lake or river;
			 privy; subsurface sewage disposal system; cemeteries; sanitary landfill; sewage
			 lagoon; industrial waste disposal location; sanitary or storm sewers; or a
			 buried oil or gasoline storage tank;
(8) "Well Pump Capacity" shall mean the
			 maximum quantity of water the well pump can supply under normal operating
			 conditions. The pump capacity shall not exceed the safe yield of the
			 well;
(9) "Yield of a Well" shall
			 mean the amount of groundwater which can be withdrawn from a well as determined
			 by the yield test. The yield of a well is expressed as gallons per minute
			 (gpm);
(10) "Service Pipe," as used
			 herein shall mean the pipe that runs between the curb stop, at or adjacent to
			 the street line or the customer's property line, and the customer's place of
			 consumption.