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<br />WATERWORKS SYSTEM
<br />
<br />The City of San Marcos receives its total water supply from four existing wells tapping the Edwards
<br />Aquifer. The system is served from two pressure planes, the upper pressure plane serving the area above
<br />the Ba1cones Escarpment with the lower pressure plane serving 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 capability of 9.5 million gallons per day, 9.36 million
<br />gallons of storage capacity and maintains an average pressure of approximately 1>5 p.s.i.
<br />
<br />Year
<br />1977
<br />1978
<br />1979
<br />1980
<br />1981
<br />1982
<br />1983
<br />1984
<br />1985
<br />1986
<br />1987
<br />
<br />Well
<br />Number
<br />~
<br />2
<br />3
<br />I>
<br />5
<br />
<br />Table I
<br />Past Consüñi'DtIõn of Water
<br />
<br />A verage Daily
<br />Use in
<br />Gallons (OOO's)
<br />4,170
<br />4,330
<br />4,280
<br />4,700
<br />4,680
<br />5,050
<br />4,960
<br />5,552
<br />5,1>60
<br />5,481
<br />
<br />Maximum Day's
<br />Use in
<br />Gallons (OOO's)
<br />7,792
<br />8,676
<br />7,756
<br />7,712
<br />7,638
<br />8,676
<br />7,675
<br />8,622
<br />8,111
<br />8,134
<br />
<br />Table II
<br />Existinj{ Well Characteristics
<br />
<br />Location
<br />Spring Lake
<br />Spring Lake
<br />Spring Lake
<br />Matthews Street
<br />Matthews Street
<br />
<br />capacih
<br />(GPM) MGD
<br />3,000 4.32
<br />4,500 6.48
<br />Not in Service
<br />900 1.29
<br />2,000 2.88
<br />10,400 14.97
<br />
<br />* Pump and motor at well No. I was replaced in 1986.
<br />** Pump and motor at well No.2 was replaced in 1984.
<br />*** Pump and motor at well No.5 was replaced in 1987.
<br />
<br />Table III
<br />Pump Station's Characteristics
<br />
<br />Pump Station
<br />S pring lake
<br />
<br />Pump
<br />Number
<br />~
<br />2
<br />3
<br />4
<br />
<br />Capacity
<br />(GPM) (MGD)
<br />1,780 2.56
<br />750 1.08
<br />1,600 2.30
<br />2,000 2.88
<br />6,130 8.82
<br />
<br />Total
<br />(OOO's)
<br />1,525,220
<br />1,582,186
<br />1,562,899
<br />1,716,090
<br />1,709,151
<br />1,844,871
<br />1,810,405
<br />2,032,713
<br />1,999,410
<br />1,982,148
<br />
<br />Motor H.P.
<br />75
<br />75
<br />-0-
<br />75
<br />125
<br />
<br />Year
<br />Drilled
<br />1941*
<br />1954**
<br />1914
<br />1966
<br />1970***
<br />
<br />Motor H.P.
<br />125
<br />60
<br />125
<br />125
<br />
<br />Midway 1 600 0.86 30
<br /> 2 --2QQ 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 />
<br />- 18 -
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