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FOX ENVIRONMENTAL SERVICES, 'IVC. <br /> 8015 West Cliff Drive • Knoxville, TN 37919 • (615) 690-1996 <br /> January 15,1986 <br /> Mr.. Kelly Williamson <br /> Kayo Oil Company <br /> 1221 East Main Street <br /> Chattanooga, TN 37408-1696 <br /> RE:. Recovery System, Operating Rates and Capacity - <br /> Fast Gas Station - Highway 12, Lodi, C <br /> Dear Mr. Williamson: <br /> The hydrocarbon recovery and ground water r claimation unit that is installed <br /> at the Fast Gas Station located at 800 East Highway 12 in Lodi, California was <br /> initially started on October 1, 1985, and operated until October 18, 1985; when <br /> the San Joaquin County Department of Environmental Health ordered its shut down <br /> until a discharge permit was acquired from the Regional Water Quality Control <br /> Board. During this period, the system was run at .less than capacity to avoid <br /> over filling the percolation pond into whicb the system discharges. <br /> On December 13, 1985, a change was made in the spray tower nozzles and the sys- <br /> tem again was started for the purpose of to ing samples for analytical purposes <br /> and to calculate the area of influence of the cone of depression created by the <br /> depression pump. The system was again shut down on December 15, 1985, when the <br /> monitor well data indicated the pumping ratE required to create a sufficient <br /> area of influence was too great for the percolation pond to accomodate (a chart <br /> of this test is attached). <br /> On January 3, 1986, the spray tower was ret ofitted, changing. the spray nozzle <br /> configuration from up flow to down flow - and the atomization screens were re- <br /> located to accomodate an aggregate packing. A second stage blower was added <br /> above the packing to -increase the air volume. <br /> Upon completion of the retrofit to the spray tower, the system was again started <br /> and has been in continuous operation at a reduced operating rate commensurate <br /> with the percolation pond capacity. <br /> Attached are the analytical results of the samples taken from the system in- <br /> fluent and effluent prior to the spray tower retrofit. New samples have been <br /> taken and the results will be forwarded whem recieved. <br /> I have attached a list of the type of equipment used on the recovery system <br /> which indicates capacities and current operating rates. <br /> If further information is required, please advise. <br /> Very truly yours, <br /> James R. Fox <br /> Project Manager <br /> JRF/wm1 <br /> Enclosures (2) <br />