Laserfiche WebLink
4.r•aH' <br /> S <br /> r <br /> FEEL-01-0000 00'26 F FI it I <br /> not exhibiting any detectable concentrations for TPHV, exhibited <br /> 23mg/kg for the TPH fingerprint. Both of these concentrations are <br /> above the RecorLmended Maximum Allowable concentration (RMAC) for <br /> TPH of 1.7mg/kg. Additionally, both samples were ca.lected from <br /> depths of nine feet to ten fnnt BGS, which is directly above the <br /> saturated 20118 at the Mite- <br /> The <br /> ito.The TPH fingerprint rea>;ult for sample MCW 01 FO-ems to indicate that <br /> weathered gasoline is present at the rite in excess of the RMAC. <br /> The TpHV fractions of result <br /> gasolineBarele MCW present0betweenIndicates <br /> tanksthat <br /> T2 and Tvolatile <br /> 3 <br /> 2.2 � ,ea <br /> Each sample analyzed exhibited detectable concentrations of total <br /> lead. however, only two aamplen exhibit total lead concentrations <br /> in excess of the RIKAC. These were namples PL01 and FL, with <br /> total <br /> respectively. <br /> lead concentrations of 164 mg/kg and 676 mg/kg <br /> The: two samples collected from near the fuel tanks (MCW #1 and MCW <br /> #2-5) exhibited elevated concentrations of lead which approach the <br /> RMAC, while the samples from MCW #2 and PL 12 exhibited total lead <br /> uin <br /> valley soil ad background concentrationsiand can be assumed cal of the San t be <br /> valley soil <br /> ator near background for this site. <br /> ad concentrations are detected within <br /> Since elevated total four <br /> le <br /> of the cisamples collected and several of the elevated <br /> concentrations occur in samples which exhibit no TP11 concentrations <br /> and there is no other readily apparent source for the lead <br /> detected, the assumpt;.on can be made that spillage of leaded <br /> gasoline in the areas near the sample locations had occurred. <br /> Natural degradationcitrant leadP} compounds s fraction of the occurredleavingonly <br /> the highly <br /> 3.0 Conclusions and Recommendations <br /> of the nix samples collected from the Miner AvenuF-- car Wash site, <br /> four contain petroleum hydrucarbon related compounds in excess of <br /> the recommended maximum allowable concentrations as established in <br /> the LUFT Manual. <br /> Through TP11 f ingerprint analysis, it can be determined that the TPH <br /> concentrations detected in sample MCW 01 is weathered gasoline. <br /> Additionally, elevated total lead concentrations in samples <br /> exhibiting nondetectnble concentrations of TPHV seems to indicate <br /> that apillage of leaded gasoline had occurred ly llendlead that <br /> fraction <br /> natural. degradation and evaporation, Y <br /> remains. <br /> 7 <br /> �on�llI�Im�fIC7@��7�RfMTWiKR17Mi1� <br />