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4�__c <br /> l "'�r:• Y r4'_�(yV r ,< - •r ;r r �' �. 4 -`rte•^ ;- - _ _ - <br /> Adv' a4n'c-e' vt <br /> t4 h } n £ � `O` � -� '<- •�� fid •• <br /> N Ge-oEnviron' nentalri hnc f� 5 <br /> -+„ - '� .-.tom � ' .,/�.fr'� 1 '•1_✓YYYCC� 4 <br /> x <br /> 4f 27 June 2005DEO <br /> E T <br /> AG.E NC Project No. 03 1100 Z g °Z <br /> Al- <br /> Mr. Jeffrey Wong 2 9 2005 <br /> San Joaquin County Environmental Health Department F r$ =x =Eflf►�R � <br />{ 304 EastNT <br /> Weber Avenue, 3rd hloor _ _ { F -_ <br /> Stockton .CA .95201,. ' <br /> r 1 j <br /> Subject:= - `Interim Remediation Confirmation Borings ;�",2 - F <br /> `x Y <br /> 'Former STEFANO'S GAS STATION *'1 <br /> _ 1419 East Charter Way, Stockto n Lfornia, Ca - ` <br /> - F <br /> - leP. ;�� 4 -1 �"°"ri-'' '; 4 be t .Y• #{. v ^r <br /> Dear Mr. Wong: r; }"x <br /> �_ - r- .fie•. <br /> On behalf of Ms Winifred Alexander of the Mary Gardella Trust;Advanced GeoEnvironmental,Inc <br /> -_ r(AGE)'has prepared the thisletter,to implement confirmation soil-`sampling at 1419 East Charter`. R <br />$i Way, Stockton, .California:°The scope of _work was outlined'in the CAGEY prepared rinteram <br />�} Remediation Work Plan, dated 14 September 2004 <br />` a t T w t T 3€ rT <br /> The workplan proposed that-after approximately six months of operation of the soil vapor extraction-. <br /> -(SVE)aysfi r,m,''soil-sam:ples`would be col'leeted=from th('petroleurri hydrocarbon impacted area at e _ � <br /> �-� <br /> the site. Analytical results=of the:soil samples will,serve to assess tlie.-remaining petroleum <br /> hydrocarbon mass • � ;� y •Y �' E <br /> } .a - _ '. <br /> The probe borings for confirmation soil sampling wxlY be advanced using,a=van mounted Geoprobe <br /> t <br /> 5400A1 rec7PUsfi probing unit equipped with:1.25-inch�probiing rods The Geoprobe advances soil' <br /> probe bdrings using a hydraulic or;pneumatichammerto drive sozl and ground water sampling tools. y z <br /> to specified,depths.' <br /> Soil samples'will be collected using_Geoprobe push-dnvef 1.25-inch diameter discrete samplers <br /> fitted with four, six-inch long brass-sleeves: Discrete soil-samples:will be collected at five-foot : - <br /> : .intervals beginning at a d"e th-of 5 feet below surface. rade`bs <br /> g g p g ( 'g) and ending at.40 feet bsg.. Upon <br /> = removal from the sampler;'the-sample sleeves-will be separated. The exposed.ends of-the second <br /> ''sieeve will be covered with Teflon sheets, capped and sealed:with tape ,Soil samples encountered <br /> in the borings will be visually classified by an_AGE geologist in accordance with the.Umfied Sail .- <br /> r Classification System(LTSCS).Additionally;soil samples Will he=field screened for the presence of <br /> it <br /> volatife or anic,com ounds-usin 'an or anic va or'meter OVM <br /> g p ., g g P ( ) TL <br /> fi- e � X-^� <br /> �+- -- - - - t- - •' 4v � F .-'� .'+' ° '-- � is "` fi� iw-; 3 v t"'i..� g' - " ' <br /> Road StiicktoiiCahforEiia 95215- f <br /> w <br /> - _Te1eplioiie(209)4671006Fax(209)467--1 I"l8 <br /> - ��-ri __ "` - �'. .] - � � '-` - tr.� '' •� -;-,".• ms's Y- ' �-' r:� x i S` <br />