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Condor Earth Thnologies, Inc. <br /> 21663 Brian Lane Sonora CA 95370(209)532-0361 <br /> F1188 Frank West Circle Suite I Stockton CA 95206(209)234-0518 <br /> June 5, 2007 Condor Project No.30871 <br /> Fj <br /> ANNUAL DOMESTIC WASTEWATER SYSTEM <br /> GROUNDWATER MONITORING REPORT <br /> MAY 2007 <br /> Site Address: Sutter Home Winery(Site) <br /> fill 18667 Jacob Brack Road <br /> Lodi, California <br /> Client: Trinchefo Family Estates <br /> P.O. Box 248 <br /> St. Helena, California <br /> ' Primary Agency: San Joaquin County Environmental Health Department SJCEHD <br /> p ( ) <br /> F1 <br /> Copy to: Timothy O'Brien, California Regional Water Quality Control Board, Central <br /> Valley Region <br /> ;; INTRODUCTION <br /> On May 7 2007 Condor Earth rth Technologies, Inc. (Condor) conducted annual domestic wastewater <br /> monitoring activities at the above-referenced Site. Data are provided in compliance with Monitoring and <br /> Reporting Program (MRP) Board Order No. R5-2002-0034 dated March 7, 2002. Three domestic <br /> wastewater monitoring wells identified as DWS-1, DWS-2 and DWS-3 were installed b uire <br /> y re q ment of <br /> the SJCEHD to monitor groundwater quality in the vicinity of the on-Site septic leachfield. Annual <br /> F J, monitoring of these wells is required by the MRP due to shallow groundwater conditions at the Site. <br /> J Figures indicating the Site location, monitoring well locations, and groundwater elevation contours . <br /> (Figures 1, 2, and 3, respectively) are attached to this report. Also attached are field forms, historic <br /> groundwater monitoring data, and laboratory analytical results. <br /> F1 <br /> SAMPLING PROCEDURES AND FIELD OBSERVATIONS <br /> On May 7, 2007, a Condor representative measured water levels at the 10 on-Site monitoring wells and <br /> collected groundwater samples from the three domestic wastewater monitoring wells. All down-hole field <br /> equipment was decontaminated in the field with a solution of laboratory-grade, non-phosphate detergent <br /> and deionized water and rinsed with deionized water prior to use in each well. All field instruments were <br /> 1 calibrated to manufacturer-recommended standards. 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 /> F1 bailer was lowered into each well to collect a field inspection sample. The bailer samples were inspected <br /> for discoloration and odor. The wells were purged with new, disposable,polyethylene bailers until at least <br /> three well-casing volumes of water were removed and the electrical conductivity (EC), pH, and <br /> Ptemperature of the water stabilized. The groundwater purged from the wells was discharged to the ground <br /> surface. Field forms completed for the work are attached. <br /> Groundwater samples were collected by filling laboratory-supplied containers with groundwater directly <br /> from the disposable bailers. The sample containers were labeled, placed in a cooler chilled with ice, and <br /> delivered in accordance with chain-of-custody procedures to GeoAnalytieal Laboratories, Inc. <br /> (GeoAnalytical Laboratories)in Modesto, California,within 24 hours of sample collection. . <br /> F ! <br /> Sa CONDOR <br />