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rid xates 1� r rs'gat ar?e t <br /> p ddtttiosa4 So5',u two <br /> G501 s far yrush(?ark Street) <br /> ]u�Y i2 2004 <br /> Page 2 <br /> Mr Wong of the <br /> 7, 20o1+ d vertical <br /> dated SePterrxber e lateral a�pared the <br /> a letter investigate <br /> the <br /> In 2a 1 to inatton ')i)oI -aTLd received <br /> ater inter£ac lan by October ��° antam lQ 1 <br /> zone oundw work P extent Of sort e dCtobex Condition was <br /> d submittal of a and the vertical dated The approval <br /> to the vadose vestigativn, 1 <br /> ueste er 2') 24fi well�-1 <br /> p11S#E rod ,,tater contamination} zrct water n Octob <br /> aurid Gray dated near monitoring <br /> extent of � °�� Rnd#EHE in a letter le location =2��2 through <br /> lilark Of — Addlitonal Stye p 15 oundwater sarnP Nlarch 25 desCxtbCd <br /> roval from direct push site from. a roval as <br /> conditional aPP oposed activities at the the €orir4er <br /> matron of a Pr anon and the coedrtionl��p l l 1 near <br /> the elan anndwater tnvestrg work plan 'T boring e ltthology at <br /> o€ `two Cv 5ubsurfac e�terit <br /> ducted <br /> "all and gro", with the nor to characterize the vertical <br /> Condor con erleral accorda Ce the rnstallatian evaluate p l hough <br /> 20a2 tri g included STs, to <br /> Iareh 2g, activities erg fs unCh borrngs at and <br /> atton the tomer a ear the form drop <br /> above- The tnvestrg adient af -p,,tentY-one by `,nater cantaminatlon <br /> wn-gr ,was in n <br /> d CV12, do ound <br /> i1 barrng (5S1) e former U STs <br /> SSTs an so of th vertical extent of <br /> cations 01 e the vrcrnity lateral and <br /> those to rnatton in ate the centrattans a€ <br /> Of sot l contam to investig elevated c82 feetbgs) The <br /> xp21) were installed that reiatrvelf inm"tely 82 feet b&s <br /> adrent of the site SBI ;ndtcated <br /> down £ron� le collectedapPle collected at it <br /> caliected C deepest sarti*P the same orted detection as <br /> the sari samples enit do t°tb were detecte o the laborator7' rep liar P <br /> de <br /> encs r ab £torn Hl'1 at a sim Marl F-es' of eats'NerC Pres con orders Of <br /> gasoline canstitu o fg��liBE) was not detected at o le collected to two artitioning <br /> conte-avations 1 The groundwater camp centr ,tlon one as P <br /> lowest butyl etYt S� H_G Corr that the gasoline fine-gxatrLed ,soil <br /> methyl tertral_ tamed TP rndicating telattvely <br /> les from a <br /> soil same feet bgs) Con the soil samPles, of the <br /> of thea result <br /> in any samples ('l9 to 83 abablY T <br /> the soil trattons present in CP <br /> 'Y <br /> e dlf iculh`� PT <br /> v(It been £Ily <br /> wet than the base with Sam s associated <br /> into th wrounduater P dropunch boring inatton had n the <br /> from the by contam samples indicated thatthe <br /> texture les collected h droCarbon aundwarer at or above <br /> ound,Nater same etroleuTn d apunch gr constituents h of the site had <br /> the Vertical extent of P hallow by asaltne EabQratory <br /> }Zesults of tcated that the of the aha acted by gter ii�itriedlateAy Hort <br /> s ind Tlie result�he site was not imP oundwa coastittaent d vertrcal <br /> boring at the site shallow of gas"d t latem, ache hlgneat <br /> characterized dwater northeast of the baits that the <br /> but thatdenote conceri�a dtcated the site <br /> shallow grIMdetection limits, to ester samples in nr,rth of <br /> oundw investigated ester sample Collectednrso- <br /> lam ria L pTB <br /> a d by tom the at" ldo� fln Chad °t Veen fully liow €�Taundvr <br /> b t}re sha er liter (4��''� indicated a <br /> . tcal res'alt5 £ trioti at <br /> in a�� rriicrograins p vestigatron the <br /> anal}t -v�satCT COU t�`m were at l�, from the rn d no from <br /> exterxt of gx"16M nstituents ben7,ane dwater data srte an <br /> s of gasohrie C�S fs with ,zest of the <br /> of the with the shallavr doe located sauth <br /> conCentratio�ocatian Cted site sours <br /> the forme urs Constru off- oimd'92Lter <br /> tion contouxsEE Plume fxotn an additional e Condor <br /> Concentra T ended <br /> ntratron ,Condor res° ' cantamlfta plum Bier <br /> low conte the site atiQn, of the Cone Pe <br /> formez SSTs at 21302 investig dlstTiblatxon ataon by discrete <br /> N3arch the vesical vesttg borings' <br /> Of the ha evaw t* ant G�°'� water n addrtranal G Tvertical extent of <br /> Based an the result site to girt bed included lateral and letter dated <br /> atzon at the pian for 4dditlon The work descrt SSC in a <br /> i�rrvestig Work 2p()2 further evaluate t e <br /> prepared the dated November 1, was approved by <br /> well installation to <br /> flan ducted <br /> estang (CPI)' and nionitormg the site then attonbe cots <br /> depth sampling, at and neon that a phased tnvestig <br /> tamr vlt t e cartditl <br /> gasoline c 2aa3 with the GpNI <br /> March 1 <br /> Jf- <br />