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ti <br /> CONDOR EARTH TECHNOLOGIES INC <br /> ` HEAj`f t 188 Frank West Circle Suite I <br /> ;VICE Stockton CA 95206 <br /> Phone 209.234.0518 <br /> CONDOR 03 JUL ` f"l 12. 54 FAX 209.234.0538 <br /> L www.condorearth.com <br /> ANNUAL DOMESTIC WASTEWATER SYSTEM <br /> GROUNDWATER MONITORING REPORT <br /> MAY 2003 <br /> Condor Project No.3087E <br /> June 5, 2003 <br /> i Site Address: Sutter Home'Winery <br /> f. <br /> 18667 Jacob Brack Road Y1 <br /> Lodi, California <br /> Client: Trinchero Family Estates <br /> P.O.Box 248 <br /> St. Helena, California 94574 <br /> Primary Agency: 'San Joaquin County Environmental Health Department <br /> Copy to: Timothy O'Brien, California Regional Water Quality Control Board, Central <br /> G Valley Region <br /> k <br /> This is a report of the results of the annual domestic wastewater system groundwater monitoring event <br /> conducted on May 7, 2003, at the above-referenced site. Data are provided in compliance with <br /> Monitoring and Reporting Program (MRP) Board Order No. R5-2002-0034 dated March 7, 2002. Three <br /> monitor wells identified as DWS-1, DWS-2, and DWS-3 were installed by requirement of the San <br /> Joaquin County Environmental Health Department (SJCEHD) to monitor groundwater quality in the <br /> vicinity of the on-site septic leachfield. <br /> The SJCEHD maintains oversight of the domestic wastewater <br /> system. Annual monitoring of these wells is required by the MRP due to shallow groundwater conditions <br /> at the site. Figures indicating the site location, monitor well locations, and groundwater elevation contours <br /> (Figures 1, 2, and 3, respectively) are attached to this report. Also attached are field forms, and laboratory <br /> analytical results. <br /> SAMPLING PROCEDURES AND FIELD OBSERVATIONS <br /> On May 7, 2003, a Condor representative was on site to measure water levels at all ten site groundwater <br /> monitor wells and collect groundwater samples from the three domestic wastewater monitor wells <br /> installed in response to the MRP. All field instruments were calibrated to manufacturer recommended <br /> standards. All down-hole field equipment was decontaminated in the field by wiping it with an isopropyl <br /> alcohol wipe and then rinsing with deionized water. The water level in each well was measured to the <br /> nearest 0.01 foot with a battery-operated, flat-tape, water-level meter. A new, disposable, polyethylene <br /> bailer was lowered into each well to collect a field-inspection sample. The bailer samples were inspected <br /> for floating product, sheen, discoloration and odor. No floating product, sheen, or odors were noted in the <br /> groundwater purged from the wells. The monitor wells were purged with new, disposable, polyethylene <br /> bailers until at least three well-casing volumes of water were removed and the electrical conductivity,pH, <br /> i <br />