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Table 2 <br /> HISTORICAL GROUNDWATER ANALYTICAL RESULTS AND MONITORING DATA <br /> CHEVRON SERVICE STATION#9-4275 <br /> 2905 WEST BENJAMIN HOLT DRIVE,STOCKTON CALIFORNIA <br /> WELL <br /> TOC ELEVATIO SAMPLE BENZENE TOLUENE BENZENE XYLENES TPH—G DTW SPT WTE <br /> feet DATE _ bl fppb ppb b feet feet feet <br /> MW-5 <br /> 379 03/22/89 35 23 110 760 4,000 1718 0 00 —1339 <br /> 06/12/89 24 2 2 53 900 17,80 000 —14.01 <br /> 09/07/89 16 4 12 50 410 1911 000 —1532 <br /> 09/07/89D 15 4 11 49 380 - — - <br /> 12/18/89 24 22 100 590 2,900 18 63 000 —1484 <br /> 03/20/90 37 29 120 630 3,400 1819 000 —1440 <br /> 07/03/90 65 89 200 1,200 5.500 1943 000 —1564 <br /> 10/19/90 55 82 190 1,100 5,900 2004 000 —1625 <br /> 01/17/91 26 51 140 830 4,900 1998 000 —1619 <br /> 03/19/91 18 24 21 790 6,800 -- -- <br /> 07/18/91 60 65 190 800 7,600 1972 000 —1593 <br /> 10/31/91 44 24 64 310 2,600 2020 000 —1641 <br /> 01/16/92 120 72 250 1,000 5,400 1960 000 —1581 <br /> 01116/92D 110 63 230 960 4,700 -- --03/11/92 —— —— — —— —— 1864 000 —1485 <br /> 03/17/92 37 13 52 170 11100 1853 000 —1474 <br /> 06/29/92 18 9 25 200 850 2018 000 —1639 <br /> 12/10/92 49 16 64 200 1,200 2078 000 --,1699 <br /> 02/04/93 31 12 58 250 1,200 1902 000 —1523 <br /> 05/18/93 58 10 170 190 2,000 1674 000 —1295 <br /> 08/05/93 32 46 50 100 750 1755 000 —1376 <br /> 11/09/93 29 38 46 190 1,400 1828 000 —1449 <br /> 1/18194 31 48 75 180 1,200 1777 000 —1398 <br /> 6/27/94 62 NO 06 19 150 1719 000 —1340 <br /> MW---6 <br /> 1 43 03/11/92 — — — —— — 1699 000 —1556 <br /> 03/17/92 63 23 370 57 3,900 1695 000 —1552 <br /> 06/29/92 4 3 49 ND 750 1848 000 —1705 <br /> 12/10/92 ND 32 34 06 700 1908 000 —1765 <br /> 02/04/93 NO 17 03 ND 620 1699 000 —1556 <br /> 05/18/93 ND 37 1 5 so 760 1518 000 —1375 <br /> 08/05/93 ND 77 39 1 6 1,300 1605 000 —1462 <br /> 11/09/93 35 1 4 ND 08 630 1659 000 —1516 <br /> 1/18194 61 28 1 4 08 470 1625 000 —1482 <br /> 6/27/94 35 1 1 16 35 320 1556 000 —1413 <br /> MW-7 <br /> 314 03/11/92 -- -- -- -- -- 1724 000 —1410 <br /> 03/17/92 ND NO NO ND ND 1715 000 —1401 <br /> 06/29/92 NO ND NO ND NO 1913 000 —1599 <br /> 12/10/92 NO NO NO ND NO 1960 0 00 —1646 <br /> 02/04/93 ND ND NO NO ND 1753 000 —1439 <br /> 05/18/93 NO ND ND ND ND 1566 000 —1252 <br /> 08/05/93 NO ND ND ND ND 1656 000 —1342 <br /> 11/09/93 NO NO NO ND ND 1729 000 —1415 <br /> 1/18194 ND NO NO NO NO 1668 0 00 —1354 <br /> 6/27/94 NO NO ND NO ND 1627 000 —1313 <br /> MW-8 <br /> 1 18 1/18/94 ND NO NO ND 51 1602 000 —1484 <br /> 6/27/94 NO: ND NO ND NO 1533 000 —1415 <br /> MW-9 <br /> 265 6/27/94 09 05 05 ND 9016 60 000 —1395 <br /> Page S of 3 <br /> EXPLANATION <br /> Well elevations given in feet above mean sea level D = Duplicate <br /> TOC =Top of casing NO = Not detected at or above method detection limit <br /> TPH—G=Total petroleum hydrocarbons—as—gasoline -- = Not analyzed/not measured <br /> DTW= Depth to water ' = Does not match typical gasoline}pattern <br /> SPT= Separate phase thickness NOTE See laboratory reports for method detection limits <br /> NTE = Water table elevation <br /> WTABI wK1 <br /> i <br /> -_-�L GROUNDWATER <br /> TECHNOLOGY <br />