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HLLCI W1LL1H1'IJ ~~[^JJVLL VJUJ4 <br />A. <br />Existins Pumps -Modelins Results <br />1141 1 LVVV 14 •Jl <br />i".UV <br />13 <br />03226 <br />Industrial Drive Pump Station Pumping Rates <br />a Operating alone 485 GPM <br />b. Operating with L. J. Rogers Pump Station on line 485 GPM <br />B. <br />2. L, J. R.ogeis Station Pumping Rates <br />a Operating alone 75 GPM <br />b. Operating with Industrial Dr. Pump Station on line 0 GPM <br />As noted from this modeling, the Industrial Drive pumps have an estimated <br />pumping rate of 485 GPM, which is very close to the observed pump rate of 500 <br />GPM during the "drawdown" test. It is also noted that the modeling indicated <br />that the L. J, Rogers Pump Station could pump 75 GPM when operating alone, <br />but cotild pump 0 GPM when the Industrial Drive Pump Station was operating. <br />With this being the case, the impellers on the L. J. Rogers Pump Station will need <br />to be changed to provide a higher head to produce 100 GPM when the Industrial <br />Drive Pump Station is operating. <br />The modeling also indicates that if the L. J. Rogers Pump Station Impellers are <br />changed, the following pumping rates would occur at both sta5ons: <br />Existins Pum 3~s with I~Tew Impellers in L. J. Rogers - Modeling Results <br />1. Industrial Drive Pump Station Pumping Rates <br />a Operating alone 485 GPM <br />b. Operating with L. J. Rogers Pump Station online 437 GPM <br />?, L. 7.. Rogers Station Pumping Rates (with new impellcrs) <br />a Operating alone 377 GPM <br />b. Operating with Industrial Dr. Pump Station on line 98 GPM <br />Based on the pump station modeling, if the L. J. Rogers Pump Station is <br />connected to the existing 8" force main, and the impellers aze changed to provide <br />98 GPM when the Industrial Drive Pump Station is operating, the Industrial Drive <br />Pump Station would be capable of pumping 437 GPM when the I,, J. Rogers <br />Pump Station is operating. This indicates that the Industrial Drive Pump Station <br />has available capacity of 437 GPM peak pumping capacity at the wozst case event <br />when the L. 7. Rogers Pump Station changes are made. <br />Page 2 <br />