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<br /> ��l All
<br /> e
<br /> -1997,1; . '4
<br /> .0 TsFiebfii.ar
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<br /> 7
<br /> 'AGELNC'PrOject No
<br /> -1.'95-61,14� 0 �d
<br /> �
<br /> ""Page,2 6f.5'
<br /> -,p I , ��• } i L C -5 y � >{. ti""I, s 'f rt,'!?. � K "p -�+., t !� � j
<br /> EachBarri pl �ed,-for,total'$'eiiio'leU'ni. ro&iibd���-qii�tified,-a�'.'stb�ddard'�,
<br /> .4 1,- .1,
<br /> L;
<br /> '(.TPH ss)jyoldtil� b�tori�atics,(be'rizehe,.,toluen'e,'ethy e en and ioiA,xyIeh6§:'BTE&X) ',,,..
<br /> solvents
<br /> hAlocarbons (chlbiiiididd-h�dro-c&bbhs)�i�-d666rdahce wi
<br /> andwlatile'' th
<br /> e -a new in esponse,,.-.
<br /> ,;.i602���.,601.-/8.010,-r6spectively.'MAI,was silected as lil �rat,or*y-forthis-projeot -r-
<br /> 1`.`.to.a requestr'6ffijhe P.HS=EHD to achievelower detection'limii's fof BTE&Xi"
<br /> 2
<br />"'�' .
<br /> 3 0 FINDINGS-
<br /> 3.1-,"-GROUND WATER!GRADIENT AND:DIRE
<br /> Dueing`the'Pe at the 30193-6 -"
<br /> December 1996,.sampling,-the,t4e,depth'td ground water s
<br /> ..2
<br /> n
<br /> '"'32 60 feet.beloW,Wp� oft� '._,%V sings.'The d watefeleydti the site
<br /> 'd I ICA.
<br /> the�September-1996 mrnpjjng event. Relative grbund'water
<br /> iikreasedapprPximatF6Iy 9.94 feet since
<br /> ele'ation summarized in Table i.,
<br /> ns are
<br /> ' v' in,Decembdr 199
<br /> Th'd doffiiha�jt ground water flow diiectio'nfbr,-'the-sampling event 6was toward the
<br /> east,qo,,northeast (N76'.E)zi:a9 rddient,,of 0'.-009--ft/ft, in.,the�Vicifiit of'the'former:UST dr6a,'311'ee`
<br /> -D at
<br /> ground water flow-difection in� . e�ember,-19q6".shifted"ALDroxim elY 45' to-the east,- from the
<br /> '
<br /> ater
<br /> ground water flow direction dete'r'mined during ili6'Sepiember 1996,sampling event. Ground,w
<br /> flow,dir6ction is depi6te&in Fipr'e-3,Relative Ground WaterElevaiion.
<br /> 3.2. PETROLEUM HYDROCARBON IMPACTED GROUND WATER
<br /> Dding thePecembe't..1.996.s. ampling'; TPH7ss was deted
<br /> tedinni"onitorin'gwells
<br /> MW-1, M'W
<br /> =2a"hd"'
<br /> and;', z' ''
<br /> '' MW-3R.-At concdntrations'6f.120 parts per billioh.(ppb;_reporiedas-micrograms-per'liter)".680 b
<br /> „BMW
<br /> cid 1,100 ppb"'spqctivelYTPH-sswas notdetecte Jdti�e- ampI s•c11eaed fron'MW-4 or MQ-5,'". '
<br /> 'd1frifig.the,136ceinber 1996"sampling evi-_nt.
<br /> tE&X-,:cdfii'pound s,were detected in the,water sample,colleCied4m.r6each
<br /> �monitorrng;well at Yv''
<br /> ,,qonce
<br /> ntrati6n's,as-.- ig as.J4,ppb (xy enes-M-W73). ;B0.7c. e was:detected In 'each sample ataa,;,;�� r
<br /> conc
<br /> 'e"n t r Ali�6"n s, 4.6,,ppb. ( 'MW,-3).�" Analytical-'resuifs 'of-2rotffid-'wat6r- samples are �,F
<br /> d'iri Table 2- _,esults of Stoddard'and BPE&X-Aha��ses: The laboratb port.i""-
<br /> ry re
<br /> SUMManZ e
<br /> chain'6f-c.�sfody and-.QA/QC- ft"are
<br /> (MAI Laboiatory.ID numbers 721 7,1A1uod'kh72"17' 5) - !X_
<br /> repo
<br /> rncluded in 4ppepdiN,B'.,
<br /> ,, �,' •' s, ••F. r .r � _ t-.i r- - ;• a +,.L,E � 7�1
<br /> j,
<br />
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