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i <br /> Second Quarter 1993 Status Report June 15, 1993 <br /> Golden Grain Company, Manteca Bean Facility, 229 Moffat Blvd , Manteca CA 4 <br /> TREATMENT SYSTEM SUMMARY <br /> System operations and maintenance for the quarter is summarized below <br /> 03/12/93 System not operating The thermocouple connection on the lead scubber needed <br /> tightening Correction made System operational <br /> 03/19/93 Vapor extraction system operational Lo-profile Air stripper (LO-PRO) not operating <br /> No problems found Meavy rains may have caused the shutdown System <br /> restarted <br /> 03/25/93 Vapor extraction system operational LO-PRO not operating Calcium flakes <br /> blocking the effluent water pathway Discharge line cleaned System operational <br /> 04/02/93 System not operating Power was interrupted on 03/31/93 by the local utility <br /> company Replaced lead scrubber thermocouple, pumped water from moisture <br /> knockouts and vapor lines, and restarted system System operational <br /> 04/09/93 System not operating Lead scrubber controller error Correction made System <br /> operational <br /> 04/16/93 Vapor extraction system operational LO-PRO not operating Plates of air stripper <br /> fouled Cleaned and replaced plates and restarted system System operational <br /> 04/19/93 System operational <br /> 04/29/93 System not operating Fuse of phase converter required replacement Restarted <br /> system without LO-PRO Vapor extraction system operational <br /> 05/07/93 Vapor extraction system operational Replaced fuse in phase converter and <br /> restarted LO-PRO System operational <br /> 05/14/93 System not operating, fuse blown Equipment malfunction in catalytic oxidizer <br /> during restart Shut down system until repair of the catalytic oxidizer can be <br /> completed <br /> During this quarter of system operation, there were no releases of untreated groundwater or <br /> untreated system vapors System shutdowns were planned or triggered by the system interlock <br /> which worked as designed to bring complete system shutdown in the event of equipment <br /> malfunction <br /> i <br /> 2379 R01 070 <br /> GROUNDWATER <br /> TECHNOLOGY,INC <br />