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' RI PoP T -odd rt.rn; S,d:u rl(,r..•a,J.,:urr I,,.r.x,g.,E,nn <br /> Il:,msn:.Il.3s,r. kL,nu, tilrk�te,rs (A <br /> I1t,�,nh.r 1 i. I�•1 <br /> TABLE 2.4 <br />' Chemieal Analyses (G round,.vater/G eop robe) <br /> 13 T L \ NIT BE TI11-G TLP11 <br />' Detection 0.3 0.3 0.3 0.6 LO 0.05 0.05-0.5 <br /> Sample I.D. Limits: µp/l, µ1;1L µg/i, µ);IL µ);IL In g/1' mg/L <br /> 1412-G 1'l R'29`96 ND 41.3 ND Nl) ND till ND <br /> l4-32-(")P—'-9 29r96 0 4 0(1 1\11) U.6 ND NI) NI) <br /> 1432-0114-8'29?96 69 600 66 400 1,3011 2,7 ND <br />' 1432-(il'5-9.,29;'96 ND ND NI) ND ND ND ND <br /> nitConversions: <br /> pg/1.parts per billion (pph) II,T•r,\ = benzene. toluene. ethyl benzene• and x)iene. <br /> Int/Lparts per million (ppm) MTnr — meth)I tertiar- butyl ether. <br /> TPI 1-6 total petroleum hydrocarbons. quantified as gawlinc- <br /> ')- PfI total extractahlc pctmtcum hydrocarhons, quantified as diesel, <br /> motor oil.and kerosene. <br /> N''D m none detected at or ahove the reported lahoratory detection limits. <br /> Based on the results of the Geoprobe investigation, Condor recomn)cndcd that monitor wells <br /> be installed at the site to investigate and monitor the lateral extent of the gasoline and diesel <br />' contamination plun)c (reference - Sod and Urowithi-wear Inve iigatinn Rel7ort, prepared by Condor, <br /> dated September 30, 1996). Nir. Ronald Ro% e of the P13S/E11D approved the proposal for the <br />' monitor well installation in correspondence to Condor, dated February 6, 1997. Condor subsequently <br /> prepared the 1'1•'ork Plan For Monitor Well Installation, dated May 30, 1997. As described in Section <br /> 1.0 of this report, the Work Plan \kas approved b}, the PHS/[IJD and the Reclamation District in July, <br /> 1997. The following is a description of the field and analytical methods used to conduct the <br />' investigation. <br /> 3.0 FIELD AND ANALYTICAL METHODOLOGY <br />' 3.1 Site Preparation <br /> Prior to the fieldwork, monitor well drilling permits were obtained from the PHS/EHD. The <br />' proposed drilling locations were marked -,with white paint and Underground Service Alert (USA) was <br /> notified 72 hours in advance of the fieldwork to locate and identify underground utilities in and near <br /> the %work area. It v,,as the responsibility of the property owner to locate all underground utilities prior <br /> 4" 1%4 <br />' %4 CONDOR <br />