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10 <br /> TABLE 13A <br /> CONCEPTUAL GROUNDWATER EXTRACTION AND GAC SYSTEM <br /> CORRAL HOLLOW SANITARY LANDFILL ENGINEERING FEASIBILITY STUDY <br /> Parameter Parameter Value <br /> Spacing between wells(ft) 100 <br /> Total number 9 <br /> Diameter of wells(inches) 4 <br /> Extraction Pump,maximum gpm,each 10 <br /> Total depth of wells(ft.) 105 <br /> Total Dynamic Head(TDH) 110 <br /> Extraction Pump(HP)each 1 <br /> No.of compressors 3 <br /> Compressor capacity(scfm) 16 <br /> Compressor HP each 7.5 <br /> Aboveground piping,extraction system,total(ft) 1,900 <br /> Aboveground piping to discharge,total(ft) 1,450 <br /> Influent equalization tank(10,000 gallons) 1 <br /> GAC Influent transfer pumps(25 gpm,2 HP)with level switches 2 <br /> Pre-filtration system,pressure bag filter 2 <br /> GAC vessels(750 pounds) 2 <br /> GAC replacement frequency yearly <br /> Backwash volume(monthly) 2000 gallons <br /> 2000 gallon HDPE Effluent surge tank 1 <br /> Total operating system horse power 34.5 <br />