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---------------------------------------------- ----------------TABLE 1 _----_____.._..�......-,. ..-.�.�
<br /> GROUND-WATER MONITORING DATA
<br /> ARCO Service Station No 2168
<br /> 441 Charter Way
<br /> Stockton, Catifornie
<br /> Page 1 of 2
<br /> Well/ Static
<br /> Sample Elevation of Water Elevation of Ethyl- Total
<br /> Number Date Top of Casing Level Ground Water TPHg Benzene Toluene benzene Xylenes Observations
<br /> ---------------------------------------------------------------------------------------------------------------------------
<br /> MW-1
<br /> W-40-MW1 05/11/92 10 45 40 27 -29 82 60,000 5,900 1,600 430 800 No FP No S, Yes 0
<br /> MW-1(54) 08/24/92 10 45 42 06 -31 61 14,000 4,100 330 310 490 No FP, No 5, Yes 0
<br /> MW-1(54) 12/17/92 10 45 42 79 -32 34 14,000 3,500 410 400 800 No FP, No S, Yes 0
<br /> MW-1(54) 01/20/93 NM NM NM NS NS NS NS NS NS
<br /> MW-1(54) 01/26/93 NM NM NM NS N5 NS NS NS NS
<br /> MW-1 2/23/93 10 45 40 98 -30 53 NS NS NS NS NS NS
<br /> MW-1(54) 03/10/93 10 45 40 42 -29 97 28,000 6,500 340 580 1,700 No FP No S, Yes 0
<br /> MW-2
<br /> W-40-MW2 05/11/92 10 83 40 63 -29 80 14,000 2 100 160 <50 1 100 No FP, No S, Yes 0
<br /> MW-2(53) 08/24/92 10 83 42 44 -31 61 12,000 2,400 1,100 110 600 No FP No S, Yes 0
<br /> MW-2(53) 12/17/92 10 83 43 18 -32 35 13,000 2,500 1,500 190 880 No FP No S, Yes 0
<br /> NW-2(53) 01/20/93 NM NM NM NS NS NS NS NS NS
<br /> MW-2(53) 01/26/93 NM NM NM NS NS NS NS NS NS
<br /> MW-2 02/23/93 10 83 41 33 -30 50 NS NS NS NS NS NS
<br /> MW-2(53) 03/10/93 10 83 40 77 -29 94 16,000 3,300 1,500 210 1,000 No FP, No S, Yes 0
<br /> MW-3
<br /> W-39-MW3 05/11/92 9 58 39 05 -29 47 65,000 13,000 3,000 1 800 8,300 No FP, No S Yes 0
<br /> MW-3(54) 08/24/92 9 58 40 84 -31 26 77,000 15,000 9,400 2,300 2,300 No FP, No S, Yes 0
<br /> MW-3(53) 12/17/92 9 58 41 69 -32 11 67,000 12,000 5,500 2,100 7,200 No FP, No S Yes 0
<br /> MW-3(53) 01/20/93 NM NM NM NS NS NS NS NS NS
<br /> MW-3(53) 01/26/93 NM NM NM NS NS NS NS NS NS
<br /> MW-3 02/23/93 9 58 40 04 -30 46 NS NS NS NS NS NS
<br /> MW-3(53) 03/10/93 9 58 39 54 -29 96 51,000 16,000 1,300 1,800 4,900 No FP, No S Yes 0
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<br /> See notes on page 2 of 2
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