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TABLE 11MMARY OF RESULTS OF GROUNDWATER MONITORING WELL DATE OF CASING DEPTH TO GROUNDWATER TPH-G TPH D TPH B T E X MTBE HVOC DO ID SAMPLING/ ELEVATION (a) WATER ELEVATION (b) (ugA) (ugll) (tig/l) {(19n) (ug") (ug/l MONITORING (Feet) (Feet) (Feet) ) (ug/1) (ug/l} NO) (ppm) MW 2 03/03/95 482 1735 -1253 2600 (e) 540 68 96 644 9 MW 2 04/12/95 482 1623 -1141 1800 360 33 70 50 W — 76 QC-1 (d) 04/12/95 –' 1900 360 32 70 51 — W _ MW 2 07/20/95 482 1645 -1163 8800 (e) 1600 22 290 290 W QC 1 (d) 07/20/95 --- --- 6 4 7200 (e) 1300 17 240 240 W MW 2 11/02/95 482 173 -1248 5000 --- 780 14 150 140 7900 -- OC 1 (d) 11/02/95 — 52 4800 840 15 160 140 8400 MW 2 01/16/96 4 82 1666 -1184 2000 300 86 62 OG 1 (d) 01116!96 --- 48 3200 2000 290 84 59 44 3000 r — MW-2 04/22/96 482 1482 -10 680 140 4 36 12 1700 QC 1 (d) 04/22/96 -- --- 490 130 3 34 11 2100 OC i (d) 07/12/96 2 07/12/96 4 82 15 12 103 4800 890 19 190 52 19000 --- 2 2 OC -- 5300 --- 990 21 220 55 20000 MW 2 11/14/96 4 82 1603 -1121 24000 590 25 70 QC 1 (d) 11/14/96 --- ND<25 1$000 23000 — 2 9 570 ND<25 68 ND<25 21000 MW 2 03/11/97 482 1286 -804 770 2 05/22/97 12 ND<5 D ND<5 0 NDcS 0 970 ~ C 4 82 13 45 -863 2700 16 1 2 93 21 3100 ... 4 0 O QC 1 (dy 05/22/97 2800 - _ --- 4 2 MW 2 08106/97 482 1432 .95 _- 77 1 1 9 5 2 1 3400 --- _ MW 2 09/22/97 482 1341 -859 2400 10 ._ — 6 3 V1W 2 01/07/98 482 1437 730 10 7 9 74 2100 -- 65 QC 1 (d) 01/07/98 - 9 55 16 90 ND<5 0 ND<5 0 ND<5 0 17000 — 60 12 110 ND<1 0 ND<1 0 23 18000 AW 2 07/01/98 4 82 1078 -596 1200 )2 ND<1 0 2 1 ND<1 0 4900 --- ')C 1 (d) 07/01/98 1000 --- 48 AW 2 09/18/98 4 82 12 5i -7 69 12000 22 ND<1 0 1 9 ND<1 0 4800 -- X 1 (d) 09/18/98 --- ___ _ 69 1 8 ND<100 77 14000 — 56 13000 56 1 7 ND<100 59 15000 AW 2 01/19/99 482 1251 -769 3500 -- ND<1 0 ND<1 0 NDtI D ND<1 0 3600 — _ 1W 3 12/21/92 5 15 21 52 -1637 170 28 ND<0 5 ND<D 5 ND<0 5 1W 3 04/04/93 5 15 1859 -1344 270 3 ND<0 5 ND<0 5 ND<0 5 ... r WV 3 04/26193 515 1834 -13 19 --- _ — — — 11v 3 10/05193 515 191 -1395 920 80 ND<0 5 ND<0 5 10 160 (c) --- W IW 3 01/07/94 515 1882 -1367 130 12 ND<0 5 ND<0 5 15 W 3 04/20/94 515 1807 -1292 99 (t) 26 ND<0 5 ND<0 5 ND<0 5 35 (C) — 38 `W 3 04/25/94 515 1804 -1289 --- W 3 07/28/94 515 185 -1335 360 (e) 46 09 09 21 m 36 VV 12/09/94 515 1899 -1384 610 140 29 34 2839 W 3 03/03/95 515 1762 -1247 ND<50 23 ND<0 50 ND<0 50 ND<1 0 W W 47 W 3 04/12/95 515 16 34 -11 19 ND<50 0 75 089 ND<0 50 ND<1 0 — -- 81 Blaine Tech Services Inc Report 990119-J 2,BP Oil 11193 at 3202 W Hammer Lane Stocklon California Page 2