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PRELIMINARY PRESSURE SEWER -ti --UMULATED RETENTION TIME (HR) <br /> Prepared By: HIGH SCHOOL AREA COLLECTION AREA <br /> March 14,2011 <br /> FRMA <br /> Zone Connects to Accumulated I Pipe Size(inches) Gallons per 100 Length ofZone j Capacity of Zone Average Daily Flo\\ Average Fluid �t\veraQe Retention I Accumulated <br /> Number Zone Total of Pumps lineal feet Changes per Day Time(Hr) RetentionTime(Hr) <br /> this Zone —This spreadsheet was calculated using pipe diameters forSDR11HDPE Gals per Day per Dwelling 200 <br /> 71.00 72.00 4 2.00 15.40 500.00 77.01 800 1039 2.31 6.27 <br /> 72.00 36.00 46 3.00 33.47 700.00 234.27 9,200 39.27 0.61 _ 3.96 <br /> 73.00 36.00 10 3.00 33.47 950.00 317.93 2,000 6.29 3.82 7.17 <br /> Page 3 Note:This analysis is valid only with the use of progressive cavity type grinder pumps as manufactured by Environment One <br /> T7•\VDkAA\Pr..;orto\Rn"NTR T)PnTPC'TC\A/Fo o j.. 4CT-ARP Q-PUMP AT ANAT-TiM, IZA-1 e;ta P0— <br />