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. Ponds <br />Leonard Rice Consulting Water Engineers, Inc. evaulated ponds 9-P1, <br />9-P2, 9-P3, 5A-P2 and 5A-P3 using data supplied in the Empire Energy <br />application document and from field data obtained during their June, 1981 <br />field work. A summary of their evaluation is attached. <br />Pond 9-P1 has a volume of 6.6 acre-feet, which for an inflow of 290 gpm <br />provides an average detention time of 5 days. It was not possible to <br />determine the volume and detention time of ponds 9=P2 and 9-P3. Although <br />the detention provided by pond 9-P2 and 9-P3 can be considered to be <br />adequate for setting of the fine particles out of the water. It takes <br />approximately 56 minutes for the coagulant to settle out the fines. <br />~= <br />L .. <br />I~ <br />-21- <br />