ARCHIVED REPORTS THIRD QUARTER GROUNDWATER MONITORING REPORT AUGUST 2015

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' Third Quarter 2015(Semi-Annual)Groundwater Monitoring Report Former Pilkington North America,Inc. Lathrop,California Page 5 of 8 ' Table 3.Diesel Thickness Measurements and Product Recover (Continued Recovery Depth to Depth to Diesel Cumulative Operations and Maintenance ' Date µ,ell ID Diesel Groundwater Thickness Diesel Removed Notes feet feet feet (gallons) RW-1 13.40 13.50 0.10 0.20 ' RW-2 Dry 50.76 RW-3 14.22 14.34 0.12 73.04 RW-2 is observed to be dry, 6/15/15DTP probe not detecting any RW-4 13.45 14.10 0.65 125.70 product or water. ' Rip-5 13.88 RW-6 Dry 4.27 RW-1 13.51 13.67 0.16 0.20 RW-2 LDry 50.76 RW-3 14.30 0.10 73.09 RW-2 is observed to be dry, 6/24/15 DTP probe not detecting any RW-4 13.52 0.88 126.01 product or water. Rey-5 RW-6 4.27 ' RW-1 13.54 13.75 0.21 0.25 RW-2 Dry 50.76 6/29/15 RW-3 14.35 14.55 0.20 73.16 RW-2 and RW-6 dry. ' RW-4 13.59 14.34 0.75 126.18 RW-5 14.07 RW-6 Dry 4.27 13.67 14.00 0.33 0.25 RW-2 Dry 50.76 RW-3 14.26 15.41 1.15 73.20 A new SoakEase sock was 7/8/15 RWA 13.65 14.66 1.01 126.48 installed in RW-1. t RW-5 13.55 RW-6 Dry 4.27 RW-1 14.01 14.18 0.17 0.38 ' RW-2 Dry 50.76 RW-3 14.35 15.66 1.31 74.33 SoakEase sock installed in 7/17/15RW-1 has collected more 13.65 3 ' RW-4 14.78 . 0.32 127.01 product than bailing well. RW-5 13.6655 RW-6 Dry 4.27 RW-1 14.08 14.23 0.15 0.43 RW-2 Dry 50.76 RW-3 14.43 15.65 1.22 7531 SoakEase sock installed in RW- 7/21/15 1 has collected more product ' RW-4 13.88 14.88 1.00 12739 than bailing well. RW-5 13.79 RW-6 Dry 4.27 ' RW-1 14.20 14.45 0.25 0.46 RW-2 Dry 50.76 RW-3 14.64 15.66 1.02 75.90 ' 8/3/15 RW4 14.06 15.60 1.54 128.02 RW-5 14.04 ' RW-6 Dry, 4.27 ' A W CONDOR