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. Cumulative Table of Weil*a and Analytical Results Vertical Measurements are in feet Anal ical results are in parts per billion(ppb) Well Ground Depth DATE Head Water To Notes TPH- Benzene Toluene Ethyl- Xylene MTBE Elev Elev Water Gasoline Benzene MW-8 01/18/94 1 18 -1484 1602 -- 51 ND ND ND ND - 06/27/94 1 18 -14 15 1533 ND ND ND ND ND - 09/29/94 1 18 -1537 1655 - ND ND ND ND ND -- 12/08/94 1 18 -1502 1620 Anomalous 110* 3 5 <0 5 <0 5 <0 5 -- 01/31/95 1 18 -1352 1470 Anomalous 140* <0 5 <0 5 <0 5 <0 5 - 03/08/95 1 18 -1280 1398 -- 70 <0 5 <0 5 <0 5 0 7 06/01/95 1 18 -11 23 1241 - 220 0 9 <0 5 1 6 0 7 09/11/95 1 18 -1305 1423 -- 1000 <1 0 <1 0 4 0 <1 0 -- 12/05/95 1 18 -1327 1445 -- 380 5 0 1 2 0 9 <0 5 - 03/18/96 1 18 -954 1072 -- 920 4 5 <0 5 13 <0 5 -- 06/18/96 1 18 -11 60 1278 230 <0 5 <0 5 <0 5 <0 5 11 09/24/96 1 18 -11 37 1255 - 240 <0 5 <0 5 <0 5 <0 5 14 12/04/96 1 18 -11 04 1222 - 200 <0 5 <0 5 <0 5 <0 5 24 02/25/97 1 18 -690 808 - 200 <0 5 <0 5 <0 5 0 8 13 05/06/97 1 18 -780 898 -- 90 <0 5 <0 5 <0 5 <0 5 18 09/29/97 1 18 -1054 11 72 -- 370 3 2 0 7 <0 5 <0 5 18 11/25/97 1 18 -1048 1166 ** 170 3 5 <0 5 <0 5 <0 5 *** 03/26/98 1 18 -396 5 14 ** <50 <0 5 <0 5 <0 5 <0 5 <2 5 06/24/98 1 18 -594 7 12 ** <50 <0 5 <0 5 <0 5 <0 5 <2 5 09/10/98 1 18 -789 907 - <50 <0 5 <0 5 <0 5 <0 5 <2 5 12/17/98 1 18 -774 892 <50 <0 5 <0 5 <0 5 <0 5 <2 5 03/10/99 1 18 -5 92 710 - <50 <0 5 <0 5 <0 5 <0 5 <2 5 06/22/99 1 18 -631 749 - <50 <0 5 <0 5 <0 5 <0 5 <2 0 09/13/99 1 18 -915 1033 - <50 <0 5 <0 5 <0 5 <0 5 <2 5 * Hydrocarbons were found in the range of gasoline, but do not resemble a gasoline fingerprint " See Table of Additional Analyses **` No value for MTBE could be determined,see lab report Blaine Tech Services, Inc 990913-K-1 3rd-0 1999 Monitoring at Chevron 9-4275 2905 W Benjamin Holt Dr,Stockton,CA 14