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<br /> NAMlrIAN(; Ml;rlltlt)I�l,fN�11 :: WA.,l) ON •1-111;; hittilFt,t
<br /> STANUAli1) ittw'cll,lt 1NTFUVACK NA?'tPLV, : 114tl tntiK rrruliv„l rarirnplilia frill;lwr,i th"
<br /> rr(randnrd pt•t�tncol for ulitelriing int+�srfu�'r. s�nmlrt�0- Th^i+ r,tirt lttr,r, fall iotas
<br /> tarn crste)ts)ry Rif 11ntnliil'It ,Rhiell or- knOwn It) br or prisinry roncern to th+,
<br /> iriterented rrgulntory a}rrir•ir•ri f0r sletr,rnilntnit if ntidttitarsra! rsr,tlr+ti will l,!'
<br /> required nt n rlit+r slid like, mr,th()Eitzlrtgy titan t,r�esi r1„::r 1►' c#<•finctl iri State rind
<br /> ify voth
<br /> 12t+QCi1 pisblit nlirrna, sia►l,jtl,±mentor, MidArr is€rits3lt�irsr I`trr'r++' ,tlle clli+•
<br /> aCrt+ptnbl+r depth rand lat+!rr)l nitu at!nll of ntirnpl rolld.t'tl{,ti I:raintri,
<br /> nr_rcirdnnr;+r Willi ,leer a tel>}`if i4.Eit15iriErt sattiltl+! ('ti11[+'trSFr1 tE� !!%l'(I7t+.'l� rlrE I;IY7il�•
<br /> at, pcn,sibt++ to the erfita r Beta (t+�rafrit•arrlinnl axitil of tlr� t,uik a,isri saEi a
<br /> vertical axisi with Ill” fill pip!•. A Y'Yirr«rr>f,r,ndang t()cr,tt'in ill al±i') Irina!, at
<br /> the npf,AKitr r..ntl trf the ttink 4r11,•nr'��ai' r:tr,wlr►rd int:•rfnY r• nranilit+'ii rst'r tYt itr;t
<br /> Collected.
<br /> ❑rirfly, lila errethnci ei.rae,iutri of dis!rtrrirt up nlative r,iiit from clireCtly l;e< ,w
<br /> the fill pipe nasi the corretipondin); oF=1Xmile and of lite trunk yield t)t,tiiiriir)#; si
<br /> ssmpitt horn the linckfill/n„five hail interface or n „hurt dilantict, I)rlow lite
<br /> interfere. In thts conn of tankri heel than 1,000 91,1101111 iss caap.scit>', Drily
<br /> one rumple from ileneflLi) the tank in squired. A 0101•1, dh trirttrr has fir etc
<br /> defined by It„giot, 2 Iloard engineers u% not gr,-Ater thl,n twority-four tridws
<br /> below the bnckfill/native nail interface nod it: kei)Ct►siKi�uctjsi io.ntir0s 1$;trt ru!p
<br /> i foot below tl:c tile. brick fill/nritiVe "Oil intt:rfitef!,
<br /> in the backhoe bucket. A tihovel or trowel its ut:cd to cut away r;urfoce )coil
<br /> and backfill rriater:nl which may hove br_en inclusie.ci in the U%jeket, noel tlae
<br /> sample is taken by pushing or drivinb• ra brarsa uumple liner tett, the ftOwly
<br /> exposns ed tioii from tile dr.:tsigntitett depth Tinct k,cation. Adclitinnai
<br /> lndictstrsci liixt %:h+=n there. in
<br /> elarifientiona by Region 2 8riaard rnginecra have
<br /> cif €toil hrooght up from
<br /> an obvious difference to the rrtatit'r. cesntumiriatic+rt
<br /> the Interface depth, than it in the rilrstivrrly more rontrirr triol«eri hc,il that
<br /> should be, rrlrcted for inclusion in the -sampl+t.
<br /> ELECTIVE EXpl,ORATORY SAMpI,F:S: This type of arimlili"g amplr)yt: the rsame
<br /> sample collection and handling pros tidure?ri it” are ufi+!ti in s,l1andrsrd Itt.QCf3
<br /> interface ,sampling, but the taoil iri typically obtained rat n grc.,tr:r depth
<br /> or from a ;. jiltion that is Iaterolly offset from the interfucee I��ntian.
<br /> STOCKI)t1.R SURVEY MODIFIED BAAQMD PROTOCOL: Thi-: rsampling follows is survey
<br /> Of
<br /> pnttern, but uses a modified BAAQMD protocol for sem plies ri stockpiles
<br /> Titin
<br /> ng
<br /> materinI that have been newly removed from a tank p
<br /> protocol calls for a diacrete at,mple container to be oll+te icted of the
<br /> 12.5
<br /> ~• cubic yards of mitterial. The survey Includ”. op>>oti
<br /> stockpile. Strict observance of the SAlAQ*ifl protocol (far purpoucn of
<br /> evaluating the Istvels of fuel valor likely to lee disichart;cd from n r,tockpiln)
<br /> culla for inclusion of thtt surface material in the bracts liner which is
<br /> driven into the pile- tit is right angle Ito the aangt+t of repose) until the
<br /> 1s_na!r-is full. Unless sprcificully nuked to follow the f AAQMD protocol. our
<br /> --
<br /> - -
<br /> personnel routinely modify the prcrcedt,ta to exclude-lhr•_surfrsce_soil and
<br /> collect trod from n depth of eight to eighteen inches. While this prejudiceu
<br /> the enmpte in the direction of yielding highs-r r+raultta than would a iatrfr,t
<br /> BAAQMD rsnmple, it is mora repret,entnlive of the levels or fuel hydrocarbont,
<br /> Strplintlieix)rt F.H1f)f,^ht-3 t;^,hr.vrcan 191tl
<br /> SECTION FOUII/Paget G
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