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TABLE 2 FINAL EXCAVATION CONFIRMATION SAMPLES ANALYTICAL DATA SUMMARY MOUNTAIN HOUSE NEIGHBORHOOD C AND D Tracy,California Depth TPH Extractable STLC Area Excavation Sample ID (ft) Date Location Diesel Crude Benzene Toulene Ethyl Benzene Xylenes Diesel Crude EX17-18-SWN7-12' 12 8/31/2006 North 2.3 6.7 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWN8-12' 12 9/29/2006 North <1.0 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWS8-12' 12 9/29/2006 South 3.3 13.0 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWN9-12' 12 9/29/2006 North <1.0 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWS9-12' 12 9/29/2006 South 11 40 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWN10-12' 12 9/29/2006 North 1.9 11 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWS10-12' 12 9/29/2006 South <1.0 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWNll-12' 12 9/29/2006 North 3.7 17 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWS11-12' 12 9/29/2006 South I <1.0 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWN12-12' 12 9/29/2006 North 22 74 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWS12-12' 12 9/29/2006 South <1.0 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWN13-12' 12 9/29/2006 North <1.0 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWS13-12' 12 9/29/2006 South 1.2 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWN14-12' 12 9/29/2006 North 1.1 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWS14-12' 12 9/29/2006 South 1.4 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWN15-12' 12 9/29/2006 North 1.2 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWS15-12' 12 9/29/2006 South <1.0 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWN16-12' 12 9/29/2006 North 6.0 17 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWS16-12' 12 9/29/2006 South 1.6 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWN17-12' 12 9/29/2006 North 2.0 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWS17-12' 12 9/29/2006 South <1.0 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWN18-12' 12 9/29/2006 North 6.4 19 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWS18-12' 12 9/29/2006 South <1.0 3.4 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWN19-12' 12 9/29/2006 North 4.8 15 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWS19-12' 12 9/29/2006 South 93 260 <0.0050 <0.0050 <0.0050 <0.0050 Area 11 Excavations 17-18 EX17-18-SWN20-12' 12 9/29/2006 North <1.0 <10 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWS20-12' 12 9/29/2006 South 3.1 11 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWN22-8' 8 9/29/2006 North 98 560 <0.0050 <0.0050 <0.0050 <0.0050 EX17-18-SWW1-18' 18 11/6/2006 West <0.99 <49 <0.0050 <0.0050 <0.0050 <0.0099 EX17-18-SWW2-18' 18 11/6/2006 West <0.99 <50 <0.0050 <0.0050 <0.0050 <0.010 EX17-18-SWW3-12' 18 11/6/2006 West <1.0 <50 <0.0049 <0.0049 <0.0049 <0.0099 EX17-18-SWS8-18' 18 11/6/2006 South <1.0 <50 <0.0050 <0.0050 <0.0050 <0.010 EX17-18-SWS9-18' 18 11/6/2006 South <0.99 <50 <0.0047 <0.0047 <0.0047 <0.0095 EX17-18-SWN8-18' 18 11/6/2006 North <1.0 <50 <0.0049 <0.0049 <0.0049 <0.0097 EX17-18-SWN9-18' 18 11/6/2006 North <1.0 <50 <0.0050 <0.0050 <0.0050 <0.0099 EX17-18-SWE1-8' 8 11/6/2006 East <0.99 <49 <0.0050 <0.0050 <0.0050 <0.010 EX17-18-SWE2-12' 12 11/6/2006 East 19 <50 <0.0049 <0.0049 <0.0049 <0.0098 EX17-18-1329 15 10/11/2006 Bottom 680 <4800 <0.0048 <0.0048 <0.0048 <0.0096 EX17-18-1330 15 10/11/2006 Bottom 50 <980 <0.0045 <0.0045 <0.0045 <0.0089 EX17-18-1331 15 10/11/2006 Bottom 1,600 <5000 <0.021 <0.021 <0.021 <0.041 EX17-18-1332 15 10/11/2006 Bottom 83 <990 <0.016 <0.016 <0.016 <0.031 EX17-18-1344 15.5 10/19/2006 Bottom <0.97 <48 <0.0049 <0.0049 <0.0049 <0.0099 EX17-18-1345 16 10/19/2006 Bottom <0.97 <48 <0.0050 <0.0050 <0.0050 <0.0099 EX17-18-1346 18.5 10/19/2006 Bottom 71 110 <0.0049 <0.0049 <0.0049 <0.0098 EX17-18-1347 18.5 10/19/2006 Bottom <0.99 <50 <0.0049 <0.0049 <0.0049 <0.0099 EX17-18-1348 20 10/26/2006 Bottom 480 740 <0.0050 <0.0050 <0.0050 <0.010 EX17-18-1349 20 10/26/2006 Bottom 3.9 <50 <0.0050 <0.0050 <0.0050 <0.0099 EX17-18-1350 20 10/26/2006 Bottom 29 <50 <0.0050 <0.0050 <0.0050 <0.0099 EX17-18-1351 22 10/26/2006 Bottom <0.99 <49 <0.0050 <0.0050 <0.0050 <0.010 EX17-18-1352 22 10/27/2006 Bottom 1.7 <50 <0.0049 <0.0049 <0.0049 <0.0099 EX17-18-1353 22 10/27/2006 Bottom <0.99 <50 <0.0050 <0.0050 <0.0050 <0.0099 EX17-18-1354 22 10/27/2006 Bottom <1.0 <50 <0.0049 <0.0049 <0.0049 <0.0099 EX17-18-1354-20' 20 10/27/2006 Bottom 380 590 <0.0050 <0.0050 <0.0050 <0.0099 EX17-18-1355 23 10/30/2006 Bottom 15 <50 <0.024 <0.024 <0.024 <0.049 EX17-18-1356 23 10/30/2006 Bottom 1,900 3,000 <0.021 <0.021 <0.021 <0.043 EX17-18-1357 23 10/30/2006 Bottom 1,900 3,000 <0.86 <0.86 <0.86 <1.7 EX17-18-1358 23 10/30/2006 Bottom 3,000 4,600 <0.93 <0.93 <0.93 <1.9 EX17-18-1359 23 10/30/2006 Bottom 3,400 5,100 <0.97 <0.97 <0.97 <1.9 EX17-18-1360 1 23 1 10/31/2006 1 Bottom 1,300 2,100 1 <0.024 1 <0.024 1 <0.024 1 <0.048 Page 3 of 4