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Alpine Meat, Stockton FALL CREEK 2nd Quarter 2006 Groundwater Monitoring Report ENGINEERING,INC. August 10,2006 Date MW1 MW2 MW3 MW4 MW5 RPE: 21.43 RPE: 19.60 RPE: 20.71 RPE: 19.87 RPE: 16.99 Depth: 55' Depth: 55' Depth: 55' Depth: 55' Depth: 56' X: 959 X: 542 X: 779 X: 0 X: 244 Y: -1213 Y:-1213 Y:408 Y: 0 Y: -149 2/24/05 -24.77 -24.61 -24.05 -23.40 -23.68 5/8/05 -23.36 -23.28 -22.98 -22.73 -22.79 9/29/05 d -32.95 NM -33.51 12/14/05 -27.24 -27.20 -26.49 -26.53 -26.62 3/24/06 -22.38 -22.22 -21.66 -20.97 -21.25 5/16/06 -21.64 -21.50 -21.32 nm -21.28 The gradient across the site was 0.0004 ft/ft oriented 109 degrees clockwise from North . The water level elevations and gradient are shown on Figure 1. Based on the water level measurements wells 1, 2, and 3 contained about 2.5 gallons of water and well 5 contained about 11 gallons. The wells were purged with a battery operated pump. Wells 1, 2, and 3 were purged of 8 gallons. Well 5 was purged of 34 gallons. Measurements recorded in the field are shown in Table 2. Table 2. Field Measurements Recorded During Quarterly Monitoring 16 May 2006 Well Purge Gallons pH EC Temp. 1 8 6.80 1526 18.0 2 8 6.77 1467 18.0 3 8 6.88 1274 17.9 5 34 7.13 1134 19.2 The samples were iced upon collection and were delivered the next day to FGL Environmental in Stockton. The analyses performed were in accordance with your letter of 16 April 2002 "ADDITIONAL INFORMATION REQUIREMENTS FOR COMPLETION OF WASTE DISCHARGE REQUREMENTS". The results of analyses are summarized in Table 3. Graphical representations of the data are in Figures 2, 3, 4, 5, 6, and 7. Table 3. Summary of Laboratory Reports For Quarterly Monitoring Parameters PH EC I TDS I Na I Cl I NO3-N I TKN I THM Teo Q401, sampled 11/29/01 by Advanced Geoenvironmental, Inc. MW1 7.14 396 980 150 210 <0.5 0.6 nm nm MW2 6.78 451 880 72 150 <0.5 0.3 nm nm MW3 7.11 1862 270 1 120 110 <0.5 1.3 nm nm 2