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I <br /> Annual Domestic Wastew`. .System Groundwater Monitoring Report <br /> Sutter Home Winery,Lodi,CA <br /> Page 2 <br /> SAMPLING PROCEDURES AND FIELD OBSERVATIONS <br /> On June 24, 2002, Condor representatives were on site to measure water levels at all ten site groundwater <br /> monitoring wells and collect groundwater samples from the three domestic wastewater monitoring wells <br /> 1. installed in response to the MRP. All down-hole field equipment was decontaminated in the field with a <br /> solution of laboratory-grade, non-phosphate detergent and deionized water and rinsed with deionized <br /> water prior to use in each well. All field instruments were calibrated to manufacturer recommended <br /> 1 standards. The water level in each well was measured to the nearest 0.01 foot with a battery-operated, <br /> flat-tape, water-level meter. A new, disposable, polyethylene bailer was lowered into each well to collect <br /> a field-inspection sample. The bailer samples were inspected for floating product, sheen, discoloration <br /> and odor. No floating product, sheen, or odors were noted in the groundwater purged from the wells. <br /> Monitoring wells DWS-1, DWS-2, and DWS-3 were purged with new, disposable, polyethylene bailers <br /> until at least three well-casing volumes of water were removed and the electrical conductivity, pH, and <br /> temperature of the water stabilized. The groundwater purged from the wells was discharged to the ground <br /> surface.Groundwater Monitoring Field Forms completed for the work are included in Attachment B. <br /> The groundwater samples obtained from monitoring wells DWS-1, DWS-2, and DWS-3 were collected <br />� <br /> by filling laboratory supplied containers tamers with groundwater directly from the disposable bailers. Three <br /> plastic.containers were filled for each well. One plastic container was preserved with sulfuric acid for the <br /> total Kjeldahl nitrogen (TKN) analysis. The sample containers were labeled, placed in a cooler chilled <br /> with ice, and delivered in accordance with chain-of-custody procedures to GeoAnalytieal Laboratories, <br /> Inc., in Modesto, California, within 24 hours of sample collection. <br /> GROUNDWATER ELEVATIONS <br /> As specified in the MRP, groundwater level measurements were collected from all ten monitoring wells at <br /> P the site. Groundwater elevation data is presented in Table 1. The water level measurements collected from <br /> the ten wells on .lune 24, 2002, indicate a groundwater gradient to the west. Groundwater Monitoring <br /> , Field Forms containing field measurements are included in Attachment B. <br /> Table 1 -Groundwater Elevation Data(June 24,2002) <br /> Monitoring Well Collar Ground Surface Depth to Groundwater <br /> Well Elevation Elevation Water Elevation <br /> GW_1 13.802 11.0 8.83 4.97 <br /> 3 <br /> G W-2 10.274 7.3 6.64 3.63 <br /> GW-3 1 1.136 8.2 7.95 3.19 <br /> GW-4 9.853 6.9 8.06 1.79 <br /> GW-5 8.981 6.0 7.40 1.58 <br /> F4:1! <br /> GW-6 7.989 5.1 6.42 1.57 <br /> GW-7 8.619 5.7 6.45 2.17 <br /> DWS-1 7.764 6.4 4.56 3.20 <br /> DWS-2 7.973 6.6 5.02 2.95 <br /> DWS-3 7.307 6.4 4.89 2.42 <br /> Measurements are in feet. <br /> Well collar elevation referenced relative to Condor Control Point 1. <br /> F <br /> CONDOR <br /> J <br />