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Project No S8100-06-62 <br /> August 22, 1996 <br /> Page 2 of 4 <br /> TABLE 1 <br /> SUMMARY OF GROUNDWATER ELEVATION AND ANALYTICAL DATA <br /> CALTRANSSHOP10 <br /> 1603 SOUTH B STREET,STQCKTON,CA <br /> TOC Depth to Groundwater' Ethyl- Total <br /> Well Elevation Groundwater Elevation TPHg TPHd Benzene Toluene benzene Xylenes MTBE Sampled by <br /> Number Date (MSL) (feet) (MSL) (ug/l) (ugll) (ug/l) (ug/1) (ugll) (ugll) (ugll) <br /> MW-7 05/04/90 10000 5078 4022 <50 NA 15 <05 <05 <05 — WCC <br /> MW-7 05/17/91 10000 64 50 3550 <50 NA <0 5 <0 5 <0 5 <0 5 - WCC <br /> MW-7 07105!91 10000 6496 3504 --- NA -- --- --- -- — WCC <br /> MW-7 04/07/92 2103 6528 -4425 <30 <30 <0 3 <0 3 <0 3 <0 37 -- ALTON <br /> MW-7 10/22/93 2103 6714 4611 ND -- ND ND ND ND --- EA <br /> MW-7 05/24/94 2103 6490 -43 87 — --- --- -- — -- --- NM <br /> MW-7 07/94 Well abandoned/removed <br /> MW-8 05/11/90 10036 5989 4047 1,900 — 200 5 1 0 7 22 --- WCC <br /> MW-8 05/17/91 10036 6474 3562 <50 <0 3 <0 3 <0 3 <0 3 --- WCC <br /> MW-8 07/05/91 10036 6522 35 14 --- --- — — — --- --- WCC <br /> MW-8 04/07/92 2135 65S6 -4421 <30 <50 <0 3 057 <0 3 <0 3 — ALTON <br /> MW-8 05/24/94 2135 6518 4383 -- --- -- -- --- — _ NM <br /> MW-8 07194 Well abandoned/removed <br /> MW-9 05/10/90 10087 6042 4045 3,400 -- 60 90 <0 5 170 --- WCC <br /> MW-9 05/17/91 10087 6534 3553 2,100 -- 310 10 1 7 32 --- WCC <br /> MW-9 07/05/91 10087 65 83 3504 --- --- --- --- -- --- WCC <br /> MW-9 04/07/92 2188 DRY — — -- --- --- --- — — ALTON <br /> MW-9 05/24/94 2188 65 84 4396 --- — -- --- — — --- NM <br /> MW-9 04/23/96 2188 6075 -3887 90 <50 1 1 13 <0 5 14 14 GEOCON <br /> MW-9 07/02/96 2188 5966 -3778 200 70 89 24 53 30 1 8 GEOCON <br /> i <br /> MW-10 04/07/92 2187 6626 -44 39 5,600 18 920 460 38 520 --- ALTON <br /> MW-10 10/22/93 2187 6718 -4531 8,000 --- 1 300 1,000 190 700 -- EA <br /> MW-10 05/27/94 2187 6594 -44 07 2,570 ND 13 000 3 400 229 2,800 — NM <br /> MW-10 07/94 Well abandoned/removed <br /> MW-11 04/07/92 2137 6594 -44 57 420 <50 33 068 037 064 -- ALTON <br /> MW-11 10/22/93 2137 6792 -4655 150 --- 4 2 22 ND i l — EA <br /> MW-11 05/27/94 2137 6563 -4426 ND ND 658 189 ND ND — NM <br /> MW-11 04/22/96 2137 DRY NA --- - -- — -- -- --- GEOCON <br /> MW-11 07/02/96 Well blocked with debris --- --- -- --- — -- --- GEOCON <br /> MW-12 04/07/92 2123 6586 -44 63 X30 <50 <0 3 <0 3 <0 3 <0 3 — ALTON <br /> MW-12 10/22/93 2123 6774 4651 ND --- 06 17 ND 1 1 -- EA <br /> MW-12 05/27/94 2123 6563 4426 ND ND 137 069 ND ND -- NM <br /> MW-12 04/24/96 2123 6046 -3923 300 <50* 11 55 11 52 <05 GEOCON <br /> MW-12 07/02/96 2123 5920 -3797 500 140 23 110 7 9 110 <0 5 GEOCON <br />