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1
<br /> ' S'TI 13A(-KGRO[ ND
<br /> (fin Ocitif,,s 3O Ir1c11 ih rrlCll f (Jnme,, f Xcavatuig ]tie C of filo Vl„ta
<br /> E " I” ( I K I TK2 and J KI) from the ,rte Ih4 f S1 ,, contarl,ta Jhfornla excavated and rurioved three
<br /> lcpr(,Scntatrve 1V,,,, ()1I ,,rte dell to the I l gasoline, a 1d diesel Erre[ A C t�ndor
<br /> g 5T removal to t.oflect soil samples 1[ic field activities were Observed by
<br /> of (Ile f H5/1�f ff� A small hole wati found (In the iowsr Flt enct of l K3 (diesel t er P
<br /> Stalnmu } Petroleum
<br /> r and o(knr ti �A cit nertcd In the ti'oll beneath the former IneatronS of the [ 157 S (3i ourlcJu iter was not
<br /> dptils (ded durin tfu t f retnov,il �]\ ,,nil 5,Impfe5 wet-L eoiiected by Condor from the (' )T Ltcavatron at
<br /> depths of t) tt) l 2 feta helou The
<br /> l "ronlyd ,rrfaLe +amper were � aJ] 3 let �vledhnmied fol 7 Pl f-{,
<br /> rtTFFHCP11-(r JIHuc13 ) I ,Yl( ) antataf lead f.aboratol ,jai
<br /> lonstltuer)t5 rrr the 1,011 ,arnples y yse5 indicated cicvatedeinetniratrcns of
<br /> E-3repared by ( ondor dated Novclnher 19 1991 or id in torratronicier to [ujak
<br /> Pull
<br /> At the dlree,tron t,f the l'[fS/[ HU, { oil dor Pis-pared a
<br /> contamination associated with the former 1,S I s Sol/uucl(fwnrrad ork putcr Inl c srrfan to esttgate the gIW7, a and y 30,
<br /> 1995) 1 he work. plan was approved by the f'HS/[ HD and the Reclamation District c#2p2grk Plu�z, dated May 30,
<br /> Oil August 22 1995 lhrt,e hydropunch boreholes ([fP-1 HP-2, and HP-3) were drilled at the site (see the figure
<br /> attached to the, back of Appendix B for borehole locations) Ronald Rowe of the PHS/I.HD was ort gsite
<br /> periodically to observe the fieldwork (,Ilbert ( Oslo of ;Murray, Burns, and Kienlen ) ngineerin
<br /> g was on observe the dr riling activities as a Reclamati
<br /> and I1P-2on District representative Two of the hydr punch boreholes siteto) were located on the levee and were drilled to depths of approximately 16 and 1 1 feet below the to of
<br /> the levee (btl) respectively The third hydroputic-11 borehole (tiP 3) was located below the levee and was drtlpfe
<br /> to a depth of �approxnnately (� feet below ground surface (hgs) Sort samples were collc,cted at five; font intervals
<br /> (�loundwater samples were col[eeted using a Hydroplinch II groundwater sarnplcr (rasolme odor,, were noted m
<br /> each borehole I ahoratory analyses indicated concentrations of rPH-(j and BTI-X
<br /> samples analysed frorn each bore,I7olc (see I abler 13 1 and B 2, below) to the sorI and groundwater
<br /> TABLE B.1
<br /> Laboratory Results (Sot] -August 1995)
<br /> F x
<br /> TPH-G TEP}{
<br /> n 50 so 1 0 1 0-10
<br /> Detection 5 0
<br /> Sample ! D ] rrttrngfkg rnS
<br /> g mg/kg Ing/kg rng/kg rtrg/kg
<br /> 1432-1{P1 ] I fat 1 200i 100 5 500 22000]432 11 P2-1 I (t#) 300 190(dit.sel)
<br /> '30 2 RUU
<br /> 2z �D1432-I il'3-5 5 N ND 1
<br /> f'l fix
<br /> 52
<br /> 91 75 16fdtL�L1)
<br /> flit I,nt 11UMbel in e,1c,11 sanlple lD uldrt�2tes the d-Wh at which the sample%v.as ultlec ted
<br /> llrlil(n11 1n11y.
<br /> nlz/l � Ilat ty
<br /> Anal tl(.al
<br /> ptl 1111111Ut1 fpp;11l
<br /> LIT[X - hcnLetle toluene ethyl he ncc,nt mid total xylenes
<br /> =total petroleum hi droc,arbons quandfred as gasoltne
<br /> r[ PI I total,Xlraad khic 1lctrn1ai1111 hvdim-arburls tluantitted is d1t NLJ nxrlut 1711
<br /> and kerosene
<br /> ND—none detected at or above laboratory detection runits
<br /> IDdetection irtnrts raised clue to gasoline mterterence
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