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' Second Quarter Groundwater Monitoring Report-May 2009 <br /> Sutter Home Winery <br /> Page 2 <br /> 1 requirements as specified in the MRP. All down-well field equipment was decontaminated in the field with a <br /> solution of laboratory-grade, non-phosphate detergent and deionized water and rinsed with deionized water <br /> ' prior to use in each well. All field instruments were calibrated to manufacturer-recommended specifications. <br /> The water level in each well was measured to the nearest 0.01 foot with a battery-operated, flat-tape, water- <br /> level meter. A new, disposable, polyethylene bailer was lowered into each well to collect a field inspection <br /> ' sample. The bailer samples were inspected for discoloration and odor. The wells were purged with new, <br /> disposable, polyethylene bailers until at least three well-casing volumes of water were removed and the EC, <br /> pH, and temperature of the water stabilized.Purged groundwater was discharged to the ground surface. Field <br /> t forms are included in Attachment C. <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 with ice, and delivered in <br /> ' accordance with chain-of-custody procedures to GeoAnalytical Laboratories, Inc. (GeoAnalytical) in <br /> Turlock, California, within Environmental Protection Agency(EPA)recommended hold times. <br /> ' GROUNDWATER ELEVATIONS <br /> A Condor representative collected groundwater level data at the ten Site monitoring wells on May 19, 2009 <br /> (Table 1, below). The groundwater gradient was variable, but generally to the northwest. Groundwater <br /> elevation contours and a hydrograph are shown on Figures 3 and 4, Attachment A. <br /> Table 1. Groundwater Elevation Data ay 19,2009 <br /> ' Ground W6.73.75 <br /> Depth to Water Groundwater <br /> Monitoring Well Collar <br /> Well Elevation Surface w Surface Elevation <br /> Elevation <br /> ' GW-1 13.80 11.08.33 2.67 <br /> GW-2 10.27 7.304.43 2.87 <br /> GW-3 11.14 8.205.15 3.05 <br /> ' GW-4 9.85 6.90 . 3.75 3.15 <br /> GW-5 8.98 6.00 6.79 3.81 2.19 <br /> ' GW-6 7.99 5.10 6.68 3.79 1.31 <br /> GW-7 8.62 5.70 6.67 3.75 1.95 <br /> DWS-1 7.76 6.40 5.07 3.71 f3.00 <br /> 69 <br /> ' DWS-2 7.97 6.60 5.43 4.06 54 <br /> DWS-3 7.31 6.40 4.31 3.40 <br /> Measurements are in feet. <br /> Well collar elevation referenced relative to Condor Control Point 1. <br /> LABORATORY ANALYTICAL RESULTS <br /> ' The groundwater samples collected on May 19, 2009, were analyzed by GeoAnalytical. Laboratory <br /> certificates of analysis and the chain-of-custody record are included in Attachment D. Specific constituent <br /> laboratory analytical methods, detection limits, and associated California Department of Health Services <br /> (DHS) Maximum Contaminant Level (MCLS) are included in Table 2, on the following page. Quarterly and <br /> annual laboratory analytical results are summarized in Tables 3 and 4,respectively, on the following page. <br /> ' w <br /> i� CONDOR <br />