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<br />THE SYSTEM
<br />
<br />Waterworks System
<br />
<br />The City of San Marcos receives its total water supply from four exlstinb weBs tapping the Edwards
<br />Aquifer. The system is served from two pressure planes, the upper pressure plane serving the area above
<br />the BaJcones Escarpment with the lower pressure plane servin5 the remainder of the City. The City's
<br />waterworks system is comprised of three pump stations, two ground storage tanks and three elevated
<br />storage tanks. The system has a peak pumping capabjJity of 9.5 miJlion gallons per day, 9.36 milJjon
<br />gallons of storage capacity and maintains an average pressure of approximately 4.5 p.s.i.
<br />
<br />Existing Well Characteristics
<br />WelJ
<br />Number
<br />--¡
<br />2
<br />3
<br />~
<br />5
<br />
<br />~
<br />JGPM) (MGD)
<br />3 , 000 """'ii':J2
<br />~,500 6.4&
<br />Not in Service
<br />900 1. 29
<br />2,000 2.&&
<br />10,400 14.97
<br />
<br />Location
<br />Spring Lake
<br />Spring Lake
<br />Spring Lake
<br />Matthews Street
<br />Matthews Street
<br />
<br />Motor H.P.
<br />75
<br />75
<br />-0-
<br />75
<br />125
<br />
<br />* Pump and motor at WelJ No.1 were replaced in 19&6.
<br />** Pump and motor at Well No.2 were replaced in 198~.
<br />* * * Pump and motor at WeIJ No.5 were replaced in 1987.
<br />
<br />Pump Station's Characteristics
<br />
<br /> Pump Capacity
<br />Pump Station Number (GPM) (MGD) Motor H.P.
<br />Spring lake 1 1,780 2.56 125
<br /> 2 750 1.08 60
<br /> 3 1,600 2.30 125
<br /> 4 2,000 2.88 125
<br /> 6,130 8:'8'2
<br />Miday 1 600 0.86 30
<br /> 2 ~ 0.86 30
<br /> 1,200 1.72
<br />Comanche 1 600 0.86 30
<br /> 2 1,200 1.72 60
<br /> 1,800 2.58
<br />Water Usage (GaHons)
<br /> Peak Average
<br /> Fiscal Day D~y Total
<br /> Year Usa~e Usa~e Usa~e
<br /> 1979 7,756 4,280 1,562,899
<br /> 1980 7,712 ~,700 1,716,090
<br /> 1981 7,638 ~,680 1,709,151
<br /> 1982 8,676 5,050 1,844,871
<br /> 1983 7,675 ~,960 1,810,~05
<br /> 198~ 8,622 5,552 2,032,713
<br /> 1985 8,111 5,460 1,994,404
<br /> 1986 7,099 5,489 I ,982, 14&
<br /> 1987 &,972 5,&58 2, 13& , 288
<br /> 1988* 8,771 5,968 2,148,774
<br />* Includes 12 months ended 8-31-88.
<br />
<br />- 7 -
<br />
<br />Year
<br />Drilled
<br />1941*
<br />1954**
<br />1914
<br />1966
<br />1970***
<br />
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