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STATE OF+CALIFORNIA- Environmental Protec•Agency • PETE WILSON, Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD �� <br /> CENTRAL VALLEY REGION �f'lVIf3Oif :EjyTA�� FEALTh a p <br /> 3443 Routier Road, Suite A Irl?V�CF 4 p <br /> Sacramento, CA 95827-3098 <br /> PHONE: (916) 255-3000 93 DEC - p 29 . �' � <br /> FAX: (916) 255-3015 PI 1 2: <br /> 23 November 1993 <br /> Mr. John Ewing <br /> Leprino Foods <br /> P.O. Box 173400 <br /> Denver, CO 80217-3400 <br /> GROUND WATER ASSESSMENT, LEPRINO FOODS, TRACY, SAN JOAQUIN COUNTY <br /> I have reviewed Kleinfelder's 30 September 1993 response to my 24 September 1993 comments on <br /> the Ground Water Assessment Proposal for the Leprino Foods facility in Tracy. All but one of the <br /> eight items of concern were addressed adequately. The response to item 3, the request to analyze <br /> the geoprobe ground water samples for TPH gasoline, benzene, toluene, ethylbenzene, and xylene <br /> (BTEX), was that diesel would be the focus of the geoprobe assessment. As I stated in my 24 <br /> September 1993 letter, since diesel fuel commonly has some small percentage of one or more of <br /> these constituents and the drinking water standards for TPHg and benzene are low, I believe it is <br /> very important to analyze the geoprobe ground water samples for these constituents. Since Leprino <br /> is reluctant to analyze for these constituents, I would like to be present during the sampling event so <br /> that I may collect samples for our laboratory to analyze for TPHg and BTEX. Eric Findlay of <br /> Meinfelder has agreed to give me at least 48 hours advance notice before the geoprobe investigation <br /> is conducted so I can be present to collect the samples. If I am not able to be present, however, <br /> Kleinfelder must have the samples analyzed for TPHg and BTEX. <br /> Kleinfelder's response did not include a schedule for submittal of the Report of Findings. Mr. <br /> Findlay had informed me that field work would begin at the site as soon as San Joaquin County <br /> issued the permits for the borings. However, although the permits were issued on 28 October 1993, <br /> the field work has not yet begun and will not begin until December. Mr. Findlay proposed to <br /> submit an Interim Report, which includes the results of the geoprobe samples and a proposal for <br /> monitoring well locations, within 30 days of receiving the permits. Obviously, the work will not <br /> even begin before those 30 days are up. Based on a start date of 1 December 1993, the Interim <br /> Report shall be submitted by 3 January 1994 and the Report of Findings shall be submitted by 28 <br /> February 1993. <br /> I have also received your 21 October 1993 letter which included a flow diagram for the proposed <br /> treatment system and supporting literature for the oil/water separator. The flow diagram indicates <br /> that water will be discharged directly from the oil/water separator to Leprino's industrial wastewater <br /> treatment plant and then to the City's wastewater treatment plant. Please provide more detail on <br />