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I SeptNrnber 1999 Y <br /> AGE_NC pralect Na - <br /> Page 4 of 96-0232 <br /> Analytical results of the <br /> (C'astle Ana} ground water sarn <br /> throU Analytical Laboratory Reference ples are <br /> gh I2730)and chain- No 2298 summarized in Table 2 <br /> of-custod and McCanipbel}Anal T}�e la#�oratory repo rt <br /> y forms are presented iii A Ytical Inc I D <br /> _ 4.0• �U��ARY Appendix B No 12723 <br /> I - <br /> Based on'd AND <br /> CaNCLUSIpnT� _ _ - - <br /> ata collected during the June" 1999 <br /> • ground <br /> w rt <br /> Ground water in the water monitoring, AGE <br /> direction g area of weIIs MrW< concludes <br /> generally toward the I Mw-S and Mir_ <br /> of wells A�FW_I no at a 7 indicated a , <br /> o w ells e ' MW-2 MW-4 and west gradient of 002 ftlft ground water flow <br /> northeast-east at a gradient -6 00 suggeste a , ground <br /> ground ��, �ater to the area <br /> Ground water elevatio atcr flow direction <br /> and the Ju n at the site decreased an generally <br /> ne I999 ground - <br /> water monitarin average 3 51 feet between the F <br /> Ile Ground water $ events elznia <br /> MLV6-B to as approxtmatel ry 1999 <br /> therefore this «_ « y '-- feet above _ <br /> Screened e11 is draINned» the screened intervals i <br /> ground water , and Yields a sam n nionitoriti <br /> ° TPH_g was ple representative g W ell <br /> detected in the of the deeper <br /> Sampling event at a concentratwater sa AIe collected <br /> reported that the from MW_ <br /> Characteristics gasoline chromatogiariiiforgmms I dllriiig the June <br /> " per Inter C,ugl} 1999 '} <br /> this sarn ), however the laboiarory <br /> TP14-d w ple, did not have-as detected in a w e typ1eal gasoline <br /> TPH-d was detected deeper <br /> sample collected fro ` <br /> The laboratoryin deeper screened w on" MW-2 at a co <br /> rCporied that the diesel chromatogram W- ncCiitraticn Of 160 /1 <br /> did not have tron' 6B at a concentration of i 10 g <br /> typical diesel characteristic$ s for the MW- <br /> MTBE was 2 and MW_ ug/l <br /> concentrationetected from all seven ¢ 6B samples <br /> s as hi 64Q round water samples <br /> "'W-1, MW-2, MW 4, as <br /> �gll, MTBE was ConfarieS utilizing EPA Method <br /> MW-6B ned in saniples frons water we at <br /> MTBE was detected at 3 and IVIW..� i.ltilizin ;ells ' <br /> between 43 a lug/I in the r g EPA Method 8260 <br /> nds4$ feet bsg ,g ound water sample collected fr <br /> MTBE c r ' Mtn 6B <br /> co Ce have oin �_ <br /> ' betivee e sreadii � , sCrebned, <br /> n July 1996 and Ju y increased in <br /> ne 1999 ground water saniples coIIected frons MW-' <br /> MTBE has i <br /> mpacted <br /> site B a the domestic 1 <br /> concentration Fater well located 1 <br /> of I I ,ug/1 0 feet west- <br /> southwest of the subject <br /> r + <br /> w i <br /> �'"ran+nrnral,Inc <br />