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Table 1 <br /> Groundwater Analytical Data 1 oft <br /> 1 Unocal Service Station#5417 <br /> rvj•/J 1700 East Yosemite Avenue <br /> Manteca,California <br /> TPM as Ethyl- Total Tert- <br /> Sample Date Gasoline Benzene Toluene benzene Xylenes MtBE DIPE ETBE TAME butanol Ethanol Methanol <br /> Number Sampled (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> GP-1 07/23/98 NO ND ND ND ND ND ND ND ND ND ND ND <br /> 11«' :4&{�.fin l } <br /> +� GP-2 07/24/98 4,700 NO NO ND 1.3 ND ND ND ND ND ND NO <br /> { <br /> 'C- j f x .f..�6� a €- .. <br /> GP-3 07/24/98 7,400 t NO NO 17 21- 20 NO ND ND f 36 ( ND ND <br /> ! =7'714M...I.�a� 7'7 ;i 1 atilt[' all „. <br /> GP-4 07/24/98 ND ND ND ND ND ND ND ND ND ND ND NO <br /> , <br /> rt <br /> P-5 j 07/24/98 ND ND ND ND 0.81 NO ND NO ND ND ND NO, <br /> {a;talEi ;tt'[ <br /> GP-6 07/23/98 ND NO ND ND NO ND ND ND NO ND ND ND <br /> n &;n�a�? t 7 $ 77 i r7 a <br /> a rl t - k P <br /> GP-7 07/23/98 NO ND ND ND NO ND NO ND ND ND NO ND <br /> >;i(rlii�l [ I ! air It <br /> r tai er`i (I „tl . <br /> GP-9 07/23/98 ND ND ND ND ND 0.64 ND ND ND ND ND ND <br /> r—mmPguy ..� �� �1libsia � :a1tr�I� <br /> s[ <br /> GP-10 07/23/98 NO ND ND ND NO NO NO ND NO ND ND ND <br /> air [I [I' at ; : , •., <br /> TPH =Total petroleum hydrocarbons <br /> ppb =parts per billion <br /> ND =Not Detected a <br /> MtBE =Methyl tertiary-butyl ether <br /> DIPE =Diisopropyl ether <br /> TAME =Tert-amyl methyl ether <br /> ETBE =Ethyl-t-butyl ether <br /> Analyses by EPA Method 8260 <br /> Anafytica data supplied by Kiff Analytical <br /> 911-0071bUable7able1 August 7, 1998 <br />