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<br /> Table 1(Continued)
<br /> Groundwater Monitoring Data
<br /> ARCO Service Station 0548,1612 Hammer Lane,StocMon,California
<br /> Well Elevation Static Elevation
<br /> Sample of Top Water 01 Total
<br /> Number Date of Casing Level Groundwater TPHG Benzene Toluene Ethylbenzene Xylenes TOG Observations
<br /> MW-3
<br /> W-49-MW3 10/30/91 995 4900 -3905 <50 <0 50 <050 <050 <050 NS No FP,No S, No 0
<br /> MW-3(62) 03/18/92 995 4578 -3583 <50 <0 50 <0 50 <050 <050 NS No FP,No S,No 0
<br /> MW-3(62) 06/10/92 995 4747 -3752 60 <0 50 <050 <0 50 <0 50 NS No FP,No S,No 0
<br /> MW-3(62) 09/04/92 995 4922 -3927 "<73 <0 50 <0 50 <0 50 <0 50 NS No FP,No S,Yes O
<br /> MW-3(62) 12/04/92 995 4830 -3835 "<150 <0 50 <050 <0 50 <0 50 NS No FP,No S,Yes O
<br /> MW-3(62) 03/04/93 995 4543 -3548 "<140 <0 5 <0 5 <05 <0 7 NS No FP,No S,Yes 0
<br /> MW-3(62) 06/07/93 995 4375 -3380 "<150 <0 5 <05 <0 5 <05 NS No FP,No S,Yes 0
<br /> MW-3(62) 09/02/93 995 4,551 -3556 <50 <05 <0 5 <0 5 <0 5 NS No FP,No S,Yes 0
<br /> MW-3(62) 12/16/93 995 4364 -3351 "'140 <0 5 <05 <0 5 <0 5 NS No FP,No S,No 0
<br /> MW-3(40) 04/08/94 995 4050 -3055 330 27 16 25 17 NS No FP,No S,O=NE
<br /> MW-3 06/22/94 995 4082 -3087 <10 <0 5 <05 <0 3 <0 5 NS No FP,No S,O=NE
<br /> MW-3(44) 09/23/94 995 4302 -3307 110 <0 5 <05 <0 5 <0 5 NS No FP,No S,No 0
<br /> MW-3(47) 12/02/94 995 4232 -3237 <50 <0 5 <05 <0 5 <0 5 NS No FP,No S,No 0
<br /> MW-4
<br /> W-25-MW4 10/30/91 1157 5045 -3888 <50 <0 50 <0 50 <0 50 <0 50 NA No FP,No S,No O
<br /> MW-4(63) 03/18/92 1157 4724 -3567 <50 <0 50 <0 50 <050 <050 NA No FP,No S,No 0
<br /> MW-4(63) 06/10/92 11 57 4894 -3737 <50 <0 50 <0 50 <0 50 <0 50 NA No FP,No S,No 0
<br /> MW-4(64) 09/04/92 1157 5065 -3908 <50 <0 50 <0 50 <0 50 <0 50 NA No FP,No S,Yes 0
<br /> MW-4(64) 12/04/92 1157 4973 -3816 <50 <0 50 <0 50 <0 50 <050 NA No FP,No S,Yes 0
<br /> MW-4(63) 03/04/93 1157 4689 -3532 <50 <0 5 <0 5 <0 5 <05 NA No FP,No S.Yes 0
<br /> MW-4(63) 06/07/93 1157 4522 -3365 <50 <0 5 <05 <05 <0 5 NA No FP,No S,No 0
<br /> MW-4(63) 09/02/93 1157 4696 -3539 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S,No 0
<br /> MW-4(63) 12/16/93 1157 4488 -3331 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S,No O
<br /> MW-4(41) 04/08/94 1157 4197 -3040 26 12 20 05 26 NA No FP,No S,O=NE
<br /> MW-4 06/22/94 1157 4226 -3069 <10 <0 3 <0 3 <0 3 <05 NA No FP,No S,O=NE
<br /> MW-4(45) 09/23194 1157 4442 -3285 <50 <05 <05 <0 5 <0 5 NA No FP,No S,O=NE
<br /> MW-4(48) 12/02/94 1157 4369 -3212 <50 <0 5 <06 <0 5 <0 5 NA No FP,No S,O=NE
<br /> xIs10805114001\110494a1 As
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