Laserfiche WebLink
y <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> MONITORING AND REPORTING PROGRAM NO. 96-813 <br /> FOR <br /> LEPRINO FOODS <br /> TRACY <br /> SAN JOAQUIN COUNTY <br /> Leprino Foods (hereafter Discharger) operates a cheese processing facility at 2401 MacArthur <br /> Drive in Tracy. The location is shown in Attachment A. The facility previously was regulated by <br /> Monitoring and Reporting Program (MRP) Order No. 95-813, which is hereby rescinded with <br /> implementation of MRP Order No. 96- 813. <br /> The facility has three aboveground storage tanks for diesel, fuel oil and waste oil storage. <br /> Investigations have found soil and ground water contamination consisting of petroleum <br /> hydrocarbons. The site presently has fifteen monitoring wells and two groundwater extraction <br /> wells. These wells and the tanks are shown in Attachment B,which is incorporated herein and <br /> made a part of this Order. Both floating product and dissolved hydrocarbons are present in wells <br /> on the site. At present the plume of floating product and dissolved phase extends approximately( <br /> feet. The full extent of the dissolved-phase plume is not known,but the edge appears to extend <br /> beyond the western and northern boundary of the property. A portion of the free-product plume <br /> may extend beyond the facility boundary on the western side, in the vicinity of monitoring well 14. <br /> Ground water flow generally is to the north-northwest at a gradient of approximately 0.0025 ft/ft, <br /> but may vary in response to the influence of recovery wells. Depth to ground water varies <br /> somewhat on a seasonal basis. <br /> The Discharger will continue to investigate the lateral and vertical extent of contamination. During <br /> fall and winter 1995-1996, five recovery wells and oil-water separators were installed on the site <br /> and the recovery system bec me operational in May 1996. At present,all water generated from <br /> operating the recovery system is passed through the oil-water separators,treated in the facility's <br /> pre-treatment system, and discharged to the City of Tracy's municipal waste water treatment <br /> facility. <br /> Any new wells installed on the site shall be sampled for the constituents listed below and the wells <br /> shall be added to the existing monitoring system,unless specifically excluded by Board staff. <br /> GROUND WATER MONITORING <br /> The ground water monitoring program shall consist of the following: <br />