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EXECUriv su <br /> The objectives <br /> groundwater, and to the project were <br /> achieve to defer to further <br /> Collectedthese Ob mine If any nea define the ve <br /> at three 1Q , cone penetratro y domestic t land l <br /> Monitoring wells Canons water ateral <br /> {CPT n testing and wells had bee extent o f Impacted <br /> FaboratorY anal ' °n-site domestic A, Cpl- disci <br /> encroachme ysIs The instal►afro well, and four Pr 8), and roundwater samples pasted To <br /> 'n the nt permitting and contra of b+vo add arby residentraJ groundwater frotewere <br /> ground sur monitoring wells actor schedulrngal groundwater mon welltawas sam existing <br /> AFed for <br /> surface elevation(bgs)in mi/v the depth to the Ino '.11s Is Pending <br /> of 14 61 anon ranged from 1 to 23 28 feet b roundwater table g <br /> dipping to th msl at -¢ m a high of 18 gs in V11-q ' ranged from <br /> June he north The res q4 feet ab rhe curies 22 08 feet <br /> e 28� 2t?p oast at a ulting ground above mea ponding below <br /> gradient in 2 the ground gradient of a water surfacen sea l$vel(msl groundwater <br /> less than creased from water pprox►mateJ aPPears 1 at 11,tW- <br /> n five degrees to t ©Q$3 to p ace dropped an aver gags foo#Jfovt g �g�,Far planeo a low <br /> has shifted over a range ofe east ��0r theoof/foof, and the a of 3 84 feet en March ? <br /> From? the four pproximately a past groundwater flohe gr0undwater�' and <br /> grvundw degree, t quarter w drreCtion <br /> contained detectable afar table s, the gr°Lndw shifted <br /> Monitorin Ater f ow direction <br /> 49/1 Of benzene concentration g welts, only <br /> The-1a M '3 and M g!F of ethylbenze�e arne compQy� ssample collected fr <br /> groundwater W`4 did not 480µg/F of TPM-as <br /> am MW_2 <br /> dornestic wells also Collected <br /> detectable c Of MTgE <br /> o did not c cted frorn th conC The samples 1 $ <br /> The three Cp ontaln dete a on-site Wateentrations of an +ales collected from <br /> r borings stable conC supply weFJ �gasoline co m <br /> CPT-4R, a dis gs were adv entratlons of and the f mential <br /> fee <br /> dedicated trete ground anted fa total de gasoline our residen <br /> t bgs fro sQrl bonn9', and afar sanlpFe was depths o f betty compounds fiat <br /> Of aAproxi m a separate soil groundwater samcollected of a depth f and 15p f <br /> calla rnatel an boring At pies depth of eat bgs <br /> collected of appmx7 d 88 feet from GAT b, grore collected of pproxrmafety 78 f At <br /> groundwatermately 124and a single sort b dwater sam lespproxima#ely ?24 eat from <br /> from a single boring samples were callecfed aap 139 cogs from a se ad groundwa fir collected at depths <br /> p x mately 23, S0, 6 881 boring amp1e$were ✓v hs <br /> Froin the 14 Wring At ePr-6 <br /> contained groundwater sam , discrete <br /> a detectable co pies Coll ' 120` and 139 feet <br /> 8 contained a con �fro <br /> not contain concentration of <br /> detectabFe <br /> The ground rn afer�' CPT-$ <br /> Bas Concentra oB s of 9asy g 6 fag/l All ample�Oilected t 8` only one Sample <br /> Based on the Sam flline cfl of the other 139 fact from <br /> groundwater sa pie results from mpounds groundwater a CPT <br /> to be defined to mAlrng data m the wafer supply rnples did <br /> concentrations the first , the vertical pply and reside <br /> groundwater and and <br /> residential welts, and <br /> MTBE detected beneath the extent of i 1 <br /> same int be oye ban the monitoring site rnpacte CP7 and discrete <br /> rval at elow groundwater g wells have declined ne ver the past ergh groundwater <br /> source removal e Ain dune 200 table at Cp7-� in Sed significantly Concentrations <br /> appears <br /> fforts, natural attenuafiQnhdecline <br /> pteMber 2a0 ncet fou i d of <br /> nd/or d1 s MTBE concentratronsere not found in the <br /> tion processes a resin <br /> may be t of <br />