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CENTRAL - LEY REGIONAL ``CATER QUALITY CC..ROL BOARD <br /> INSPECTION REPORT <br /> 27 August 1987 <br /> DISCHARGER : TRIPLE E PRODUCE CORPORATION <br /> LOCATION & COUNTY : Linne Road, San Joaquin County <br /> CONTACT ( S ) : Nate Esformes- (owner) Paul Draper (General Manager) <br /> INSPECTION DATE : 17 July 1987 <br /> INSPECTED BY : Steve Salzman AUG 31 1987 <br /> ACCOMPAN I ED BY : - - - ENVIROMENTAL HEALTH <br /> FERMIT/SERVICES <br /> OBSERVATIONS AND COMMENTS <br /> San Joaquin County' s AB 1803 program found a well south of Tracy that was <br /> contaminated with chloroform. During the follow-up investigation, on 7 July <br /> 1987 , I contacted Nate Esformes of Triple "E" Produce Corporation. fie operates <br /> a tomato packing facility in Carbona which is up-gradient of the 1803 well . fie <br /> stated that they use chlorine in their process/wash water and discharge it to an <br /> unlined pond. <br /> I inspected the facility on 17 July 1987. We discussed the waste discharge <br /> requirements process and remedial actions such as lining and aerating the pond. <br /> Their processing is as follows. 'Green mature„ tomatoes are dumped into one end <br /> of a horse-shoe-shaped tank that is filled with approximately 5,000 gallons of <br /> heavily chlorinated water. The chlorine level ( between 80 and 250 ppm) was <br /> suggested by Joseph Agawa of Davis University and is maintained by an automatic <br /> feeder system. A pump circulates the water in the tank. This moves the <br /> tomatoes to the other end in about 60 seconds. They are removed by a conveyor <br /> belt, rinsed with fresh water, manually sorted, waxed, packed, then treated with <br /> ethylene gas to ripen them. The rinse water enters the tank and thus forces a <br /> discharge of approximately 3-5 gallons per minute throughout the 10-hour work <br /> day. At the end of each day, the tank is emptied into the pond. The pond also <br /> accepts runoff from a paved area where the trucks are unloaded. <br /> Water samples were collected from the tank, the pond and the on-site production <br /> well . The results of an EPA 601 analysis are as follows: <br /> Tank Pond Well <br /> Chloroform 790 ppb 310 ppb 0.3 ppb <br /> Bromoform 2.2 ppb 12 ppb <1.0 ppb <br /> Dichlorobromomethane 27 ppb 85 ppb <0. 5 ppb <br /> Dibromochloromethane 5 ppb 39 ppb <0. 5 ppb <br /> Chlorobenzene 130 ppb 240 ppb <1.0 ppb <br />