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�l n Cumulative Table of Well a and Analytical Results . Vertical Measurements are in feet Analytical results are in parts per billion(ppb) �i Well Ground Depth - DATE Head Water To 4 Notes TPH- Benzene Toluene Ethyl- Xylene MTBE Elev Elev Water Gasoline Benzene MW,-6 03/11192 1 43 -1556 1699 -- -- -- -- -- -- 03/17/92 1 43 -15 52 1695 - 3900 63 23 370 57 -- 06/29/92 143 -1705 18 48,; -- 750 4 0 3 0 49 ND - 12/10/92 1 43 -1765 1908 -- 700 ND 32 34 0 6 -- 02/04/93 143 -1556 1699 - 620 ND 1 7 0 3 ND -- i 05/18/93 143 -1375 15 18, -- 760 ND 3 7 1 5 6 0 - 08/05/93 143 -1462 1605 1300 ND 7 7 39 1 6 -- 11/09/93 1 43 -1516 16 59 , 630 3 5 1 4 ND 0 8 -- i 01/18/94 1 43 -1482 1625 -- 470 61 2 8 1 4 0 8 - 06/27/94 1 43 -1413 1556 -- 320 3 5 1 1 16 35 - 09/29/94 1 43 fl -15 27 1670 780 8 0 2 5 49 55 -- I 12/08/94 1 43 -14 92 16 35' 430 3 2 3 4 39 15 - 03/08/95 1 43 -1272 14 15, - 90 <0 5 <0 5 <0 5 <0 5 - 1 06/01/95 1 43 -11 18 1261 1500 6 9 0 5 120 47 -- u 09/11/95 143 -1299 1442 -- 1200 11 1 1 120 <1 0 - 12/05/95 1 43 -1347 1490', - 2000 63 <5 0 200 19 03/18/96 1 43 -943 1086 220 2 6 <0 5 <0 5 <0 5 -- } 06/18/96 1 43 -960 1103, -- 300 35 <0 5 <0 5 v <0 5 18 09/24/96 143 -1135 1278 - 870 44 <0 5 0 9 13 47 12/04/96 1 43 -1094 1237 - 200 <0 5 <0 5 <0 5 0 7 75 5 02/25/97 1 43 -733 876 -- 4700 25 2 0 91 12 89 ; 05/06/97 1 43 -7 64 907 -- 930 52 <0 5 1 8 <0 5 45 09/29/97 1 43 -1041 11 84 - 410 1 6 0 6 <0 5 <0 5 23 11/25/97 1 43 -1039 11 B2 * 160 37 <0 5 <0 5 <0 5 CONTINUED ON NEXT PAGE i4 { l i 1 I I{ 1 r 1 1I� I � 11 IIS 1 Seel Table of Additional Analyses ** Novalue for MTBE could be determined,see lab report ' { � l � r Blaine Tech Services, Inc 990622-R-1 2nd-Q 1999 Monitoring at Chevron 94275 2905 W Benjamin Holt Dr,Stockton,CA 11 it