ARCHIVED REPORTS_XR0008102 CASE 1

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i TABLE 1 -SUMMARY OF RESULTS OF GROUNDWATER MONITORING WELL DATE OF CASING DEPTH TO PRODUCT GROUNDWATER TPH-G B T E X MTBE DO LAB ID SAMPLING/ ELEVATION (a) WATER THICKNESS ELEVATION (b) (ugll!) (ug1L) (ug/L) (uglL) {ug/L} (ug/L) (ppm) MONITORING (Feet) (Feet) (Feet) (Feet) AMW-1 04/26/90 2653 535 --- 2118 100 ND<0 3 ND<0 3 ND<O 3 ND<O 3 Y - ANA AMW-1 07/12/90 2653 558 --- 2095 70 ND<O 3 ND<O 3 13 06 SUP AMW-1 08/27/90 2653 598 --- 2055 — — — — — - — AMW-1 11/02/90 2653 594 — 2059 --- -- -- -- -- AMW-1 11/05190 2653 597 — 2056 ND<50 ND<O 3 ND<0 3 ND<O 3 ND<0 3 — - - — SUP AMW-1 02/25/91 2653 479 --- 21 74 ND<50 ND<0 3 ND<O 3 ND<0 3 ND<O 3 — SUP AMW-1 06127/91 2653 589 --- 20 64 ND<50 ND<O 5 ND<0 5 ND<O 5 ND<O 5 - — CHR AMW-1 09/25191 2653 653 -- 20 00 ND<30 ND<O 30 ND<O 30 ND<O 30 ND<O 30 — — SEQ AMW-1 12/10191 2653 567 — 2086 45 ND<0 30 ND<O 30 ND<0 30 ND<O 30 SEQ AMW-1 03/25/91 2653 475 --- 21 78 ND<30 ND<O 30 ND<O 30 ND<O 30 ND<O 30 SEQ AMW-1 06125/92 2653 662 --- 1991 ND<30 ND<O 30 ND<0 30 ND<O 30 ND<O 30 - - SEQ AMW-1 12/08192 2653 565 --- 20 88 ND<50 ND<0 5 ND<O 5 ND<O 5 ND<O 5 — ANA AMW-1 03/10/93 2653 477 — 2176 ND<50 ND<0 5 ND<O 5 ND<0 5 ND<O 5 --- {I) PACE AMW-1 06/16/93 2653 527 --- 2126 — — — — — — — AMW-1 10/22/93 2653 589 — 2064 — — — — — - — — AMW-1 01/24/94 2653 538 — 2115 --- ~- — -- -- AMW-1 06/07/94 2653 581 — 2072 ND<50 ND<O 5 ND<0 5 ND<O 5 ND<0 5 ND<5 0 (1) 33 PACE AMW-1 09113/94 2653 646 --- 2007 AMW-1 01/10/95 2653 486 --- 2167 --- ~- -- -- r- — AMW-1 03/23195 2653 460 — 2193 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 — 83 ATI AMW-1 10104195 2653 622 --- 2031 — — — -- — AMW-1 01/04/96 2653 512 — 2141 AMW-1 03/29/96 2653 452 --- 2201 ND<50 ND<0 5 IND<1 ND<1 ND<1 ND<10 34 SPL AMW-1 07/01/96 2653 510 --- 2143 --- -~ — -- '- `- — AMW-1 10/15/96 2653 531 — 21 22 -- — — — — AMW-1 04/16197 2653 388 — 2265 — AMW-1 10/15/97 2653 604 — 2049 — — — — — AMW-1 03/17/98 2653 560 -- 2093 --- --- — AMW-1 01/06199 2653 555 — 2098 — — — — — — — AMW-1 09/13199 2653 510 — 2143 — — — -- - — AMW-1 01/19/00 2653 519 — 21 34 AMW-1 04/12/00 2653 612 — 2041 — — — — - — AMW-1 07/22/00 2653 598 --- 2055 — -~ -- -- -- — —_ — AMW-1 10126100 2653 580 -- 2073 - - — — — — — AMW-1 01/17/01 2653 588 — 2065 — — — — — — — AMW-1 04/12/01 2653 536 — 2117 - — — AMW-1 05123/01 2653 565 --- 20 88 ND<50 ND<O 5 ND<0 5 ND<O 5 ND<1 5 ND<O 5 - - PACE AMW-1 07/31/01 2653 605 --- 20 48 69 ND<O 5 ND<O 5 ND<O 5 ND<1 5 ND<0 5 PACE AMW-1 10/30/01 2653 611 --- 2042 ND<50 ND<O 5 ND<0 5 ND<O 5 ND<1 5 ND<O 5 --- PACE AMW-1 01/29/02 2653 486 --- 2167 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<1 0 ND<O 5 --- PACE a e17 Blame T Services,Inc,Report,020129-KF-1,BP Of 11994 at 2375 Tracy Blvd.Tracy,Cal �a �g '