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CAMBRIA <br /> e^x k � <br /> J far,«` s <br /> -30���� ��'� � .�'�T <br /> e,i i �ah"e`*-r ,mow ' VAN <br /> .h <br /> � xa , ,.';�" "" '7�`" <br /> Table 2 Gratindwater Extraction System Analytic l Results,S1ae11�?ratid Ser4+ice Station;2� 5 CountryFCIubg��vard;StgC ctpa;California <br /> 1 "t a a go-i F r rr <br /> Influent Nbdfltuent 1 Mtdfluent 2 Effluent <br /> Sample TPHg Benzene MTBE TPHg Benzene MTBE TPHg Benzene MTBE TPHg Benzene MTBE TP14 pH <br /> Date Cone Cone Cone Conc Cone Cone Cone Cone Cone Cone Cone Cone Cone <br /> (rrLrWdd/ ) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) ( b) (Ppb) <br /> 010-4/03 4 900 670 10 000 <100 30 420 <50 <0 50 29 <50 <0 50 <0 50 <1 000 721 <br /> 02106/03 NA NA NA NA NA NA <50 <0 50 7 3 NA NA NA NS NS <br /> 02/21/03 17 000 2 400 20 000 <250 <2 5 1 400 <50 <0 50 77 <50 <0 50 <0 50 <t ow, 6 94' <br /> 03/05/03 3300-0 3 400 28 000 <2 000 <20 11000 <50 <0 50 46 NA NA NA NS NS <br /> 03/25/03 37,000 5,500 47,000 <5,000 X50 20,000 <50 <0 s0 51 <50 <0 50 <0 50 <1,000 6 63 <br /> 04/04/03 29,000 3,500 33,000 <10,000 <100 32,000 <50 <0 50 5 2 <50 <050 <0 50 <1,000 697 <br /> 04/16/03 39,000 4,800 33,000 <10,000 <100 36,000 <50 <0 50 780 NA NA NA NS NS <br /> 05/20/03 26,000 2,900 14,000 <50 051 230 <50 <0 50 85 <50 <0 s0 17 <1,000 689 <br /> 05/29/03 NA NA NA NA NA 180 NA NA 83 NA NA 13 NS NS <br /> Abbrertations&Notes <br /> TPHg=Total purgeable hydrocarbons as gasoline <br /> MTBE=Methyl ten-butyl ether <br /> Conc =Concentration <br /> ppb=parts per billion equivalent toµgll <br /> TPHg benzene and MTBE analyzed by EPA Method 8260 <br /> TPH(hexane extractable=oil and grease)analyzed by EPA Method 1664 <br /> pH analyzed by EPA Method 150 1 <br /> Discharge Limits TPH=100 mg/L benzene=0 5 mg/L,MTBE=0 5µgf1.,pH=5 0<x<10 0 <br /> NS=Not sampled <br /> NA=Not analyzed <br /> 'TPH and pH were sampled on 2125103 not 2/31/'03 <br /> 0783 Page 2 of 2 <br />