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FALL CREEK ENGINEERING, INC. <br /> Civil• Environmental• Water Resource Engineering and Sciences <br /> Tel.(831)426-9054 P.O.Box 7894,Santa Cruz,CA 95061 nn (�` Fax.(831)426-0932�� <br /> December 2, 2007 W E V� v ED <br /> DEC 1 7 2007 <br /> Mr. Tim O'Brien <br /> Central Valley Regional Water Quality Control Board ENVIRONMENT HEALTH <br /> PERMIT/SERVICES <br /> 11020 Sun Center Drive, #200 <br /> Rancho Cordova, CA 95670-6114 <br /> ALPINE MEATS, STOCTON, SAN JOAQUIN COUNTY <br /> GROUNDWATER MONITORING REPORT FOR THE PERIOD <br /> 11 AUGUST 2006- 28 SEPTEMBER 2007 (Q306 THROUGH Q307) <br /> This facility has five monitoring wells. One of the wells, MW4, is only being used for <br /> water level measurements. Another well, MW3, is adjacent to ponds used for the <br /> treatment and storage of wastewater. Wells MW 1 and MW2 are on the southern (down <br /> gradient) edge of a 14-acre field used for land application of wastewater. MW5 is on the <br /> up gradient side of the facility and is considered as the background well. Figure 1 is a <br /> sketch map of the site showing the five monitoring wells and the wastewater handling <br /> facilities. <br /> Quarterly groundwater sampling was performed on August 11, 2006, November 10, <br /> 2006, January 29, 2007, April 27, 2007, and September 28, 2007. The results for these <br /> sampling events have not previously been reported. The depth to water was measured in <br /> all wells prior to sampling. The water level measurements are given in Table 1, except <br /> for the August 11, 2006 round, which could not be located. <br /> Table 1. Water Level Elevations at Alpine Meats, Stockton <br /> Date MWl MW2 MW3 MW4 MW5 <br /> RPE: 21.43 RPE: 19.60 RPE: 20.71 RPE: 19.87 RPE: 16.99 <br /> Depth: 55' Depth: 55' Depth: 55' Depth: 55' Depth: 56' <br /> X: 959 X: 542 X: 779 X: 0 X: 244 <br /> Y: -1213 Y:-1213 Y:-408 Y: 0 Y: -149 <br /> 4/23/02 1 -20.42 -20.43 -20.12 -20.29 <br /> 7/8/02 D -29.15 -29.21 -29.94 <br /> 10/16/02 D -29.72 -28.53 -29.40 <br /> 3/25/03 -22.48 -22.41 -22.31 -22.16 <br /> 6/23/03 -27.24 -27.48 -27.01 -27.29 <br /> 9/2/03 NM NM NM NM -33.25 <br /> 12/24/03 -28.36 -28.44 -27.93 -27.85 -27.91 <br /> 1/31/04 -26.31 -26.22 -25.83 -25.59 -25.67 <br /> 4/24/04 -25.23 -25.20 -24.83 -24.77 -24.82 <br /> 8/9/04 -30.19 -30.32 -29.63 -29.90 -29.97 <br /> 12/1/04 -28.98 -28.96 -28.27 -27.94 -28.07 <br />