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ky i <br /> a - # <br /> 1 <br /> r <br /> •TABLE 2 CUMUI_A'TiVE SUMMARY Op'CONCi:N'T1ZA'I'IONS(}tg/L=ppb),1' <br /> PETROLEUM HYDROCARBONS IN'l'1 iE GROUNDWATER,FORMER <br /> EXXON RS 7-3942,4444 PERSI ZING AVIJNUE, 5'TOCKTON,CA ,_ <br /> Total <br /> Ethyl_ Hydro- <br /> Well T of n^ I .nom? Xy <br /> Eta' l_-tt� _�2 - <br /> 0 <br /> _No, Date__ -am-mils- --� - <br /> GW1 <br /> {}y/23186 40,000 43,000 NA 9,900 130,000 <br /> 1 <1 NA <} <50 <br /> < <br /> MWI 01187 <0.50 <100 <br /> <1 0.5 1.5 A 5 <br /> MWI 07/16/87 0.5 <1.5 <0.-) <0.5 <100 <br /> MWI 04/1 1/88 <1,9 2.5 <0.5 <0.5 70 <br /> MWI 09/13/98 <0.5 9.5 <{},5 <0.5 130 <br /> MW1 11/16/88 1.7 0.2 0.2 0.6 <250 <br /> MWI 02/09/89 <0.5 <0.5 0.8 <250 <br /> MWI 05/31/89 <0.5 <0.5 <250 <br /> <Q,5 L <br /> 1.59 c0.<0.5 <br /> MWI 08/17/89 <0.5 < S <250 <br /> MWI 12/19/89 <0.5 <0.5 0.8 <2.y 80 <br /> MWI 03/21190 <0.5 4.5 <0.5 <0.5 120 <br /> MW1 05/17/90 7.0 },{} 4.7 170 <br /> MW1 00/25/90 <0.5 <br /> MWI 12/19/90 Not s Implc6 well was dry <br /> MWI 01/30/91 Not sampled-well was dry <br /> MW1 05/02/01 Not sampled- well was dry <br /> 26 190 NA 1,100 11,000 <br /> MW2 01187 68630 1,320 4,800 <br /> MW2 07/16/87 94 <20 240 880 11,000 <br /> MW2 04/11/88 60(1 62 520 1,900 7,400 <br /> MW2 09/13/88 840 }40 650 1,600 10,000 <br /> MW2 11/16/88 480 55 660 1,700 7,200 <br /> MW2 02/09/89 680 62 S0{} 3,100 17,000 <br /> MW2 05/31/89 430 350 1,700 15,(}00 <br /> MW2 08i i 7/89 2,100 <br /> MW2 12/19/89 Not sampled-well was dry <br /> MW2 03/21/90 sampledNot <br /> Not samled-well was dry <br /> MW2 05/17/90 Not sampled-well was dry <br /> MW2 09/25/90 Not sampled-well was dry <br /> MW2 1211}190 P <br /> MW2 011301[)1 Not sampled-well was dry <br /> MIA.12 05/02/91 Not sampled-well was dry <br /> 17 64[1 NA 400 32,000 <br /> MW3 01187 830 6100 190 436 1,700 <br /> MW3 07/16/87 450 970 210 860 4,600 <br /> MW3 04/11/88 <br /> MW3 09/13/88 Not sampled- LPPIi t 8,600 61,000 <br /> MW3 11/16/88 <250 3,200 l ,){}(} <br /> MW3 02/09/89 Not sampled-LPPH <br /> MW3 05/31/89 Not sampled-LPPIi <br /> <indicates that the concentration was below the noted detection limit. <br /> NA=not analyzed. <br /> LPPH=liquid-phase petroleum hydrocarbons. <br /> Data from 1/87 from HLA report 1987. <br /> 17J134t7l1WJSR <br />