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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />DEFINITION OF TERMS <br /> <br />The following engineering terms are used in this report and are defined <br /> <br />briefly as follows: <br /> <br />MG <br />MGD <br />GPCD <br />GPM <br />AF <br />CFS <br />PSI <br /> <br />Annual Average Day <br /> <br />Feeder Mains <br /> <br />- Million Gallons <br />- Million Gallons Per Day <br />- Gallons per Capita per Day <br />- Gallons per Minute <br />- Acre-feet (43,560 cu. ft.); 3.07AF=I.0 MG <br />- Cubic Feet per Second <br />- Pounds per Square Inch <br />- An average day during one year, i.e., <br />total year usage divided by 365 days. <br />- Theoretically, one day during the year <br />when the demand will be greater than any <br />other day during the year. <br />- One or two hours when the hourly system <br />demand will be the greatest. <br />- All facilities for the collection, trans- <br />portation, pumping, treatment and storage <br />and distribution of water and supply works, <br />stands and impounding reservoirs, intake <br />structures, pumping stations, wells and <br />all other facilities for the development <br />of a source of water supply. <br />- Pipe lines from the source of supply to <br />treatment works or the distribution system. <br />- Pipe line grid throughput the building <br />area including hydrants, valves and other <br />appurtenances used to supply water for <br />domestic and fire fighting purposes. <br />- The principal pipe lines of the distri- <br />bution system. <br />- Pipe lines which comprise the distribution <br />system. <br /> <br />Maximum Day <br /> <br />Maximum Hour or <br />Peak Hour <br /> <br />Waterworks System <br /> <br />Supply and Transmission <br />Lines <br /> <br />Distribution System <br /> <br />Distribution Mains <br /> <br />-8- <br />