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CONDOR EARTH TECHNOLOGIES INC <br /> } 188 Frank West Circle Suite I <br /> Stockton CA 95206 <br /> ` Phone 209.234.0518 <br /> FAX 209.234.0538 <br /> F, CONDOR www.condorearth.com <br /> F!4 <br /> ANNUAL DOMESTIC WASTEWATER SYSTEM <br /> GROUNDWATER MONITORING REPORT <br /> MAY 2004 <br /> Condor Project No.3087F <br /> June 21,2004 <br /> Fill Site Address: Sutter Home Winery <br /> 18667 Jacob Brack Road <br /> Lodi, California <br /> Client: Trinchero Family Estates <br /> P.Q. 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 /> Valley Region <br /> Lj <br /> This is a report of the results of the annual domestic wastewater system groundwater monitoring event <br /> conducted on May 12, 2004, 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. 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 /> E `I 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 12, 2004, a Condor representative was on site to measure water levels at all ten site groundwater <br /> PJ <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 />