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. 04 August 2000 - <br /> ' AGE-NC P1 oject No 98-0521 - - - <br /> - Page-9 of 11 <br /> 4 3 1 Gt ab Gt ound Water Samples <br /> • TPH-g was detected In samples B3-H2O and B6-H2O at 190 mitt ogl ams pet Met <br /> (µg11) and 67,000 ug/I tespecttvely <br /> • Benzene was detected to samples B3-H2O and B6-H2O at 6 3 ug/1 and 1,300 ug/1, <br /> t especttvely Toluene was only detected to sample B6-H2O at 4,400 pg/l <br /> -Ethylbenzene was detected t11 samples B3-H2O and B6-H2O at concentt attons of 3 8- <br /> _ ug/l and 2,000 ug/l,-t especttvely_Samples B6-H2O, B8-H2O, B9-HO and B 10-H2O <br /> _at concentt attons 1 angina fi om 0 78 ug/1 to 11,000 ug/I - <br /> _ MTBE was detected by EPA method 8020 to samples B3-HO (1,000 ug/1), 13441,0 <br /> (22 ug/l)`and B6-H2O (2,700 ug/1) The MTBE concentt attons �N et e t econftrined ui <br /> t -- these three samples by EPA method 8260M at 1,100 µg11, 29 ug/l and 3,400 ugd, <br /> 1 especttvely <br /> f ' TBA was detected In samples BI-HO, B2-H2O, B4-H2O and B8-H2O at - <br /> - r concentt attons as high as 43 ug/l No other fuel oxygenates wet e detected 1n the gt ab ' <br /> t• g1 ound water-samples <br /> t Anal}qtcal t esults of gt ab gt ound mater samples analyzed al e summat lzed ill Table 4 The labor atol y <br /> 1 eports(MAI Labor atoty ID 35104 to 351 11) duality assut ante and duality contt of(QA/QC)1 eports <br /> and chant-of-custody forn-is at e included in Appendix D <br /> 4 3 2 Gl onnd Water Monitol tng Wells - <br /> - ' - • TPH-g was not detected 117 the samples collected ft om the th1 ee molittot 1119 wells <br /> • Benzene was only detected to monttot tng well MW-2 at a concentt anon of 1 5 �g/1 - <br /> ' No additional BTE&X compounds vele detected to any of the wells Y <br /> • M_TBL« \ <br /> as detected by EPA method 8020 to ground water samples 7W-1 and MW- <br /> 2-at I 1 and 820 ug/l 1 especttvely Both samples wet e t econfirmed for MTBE by EPA <br /> method 8260M at 12-Etg/l and 890 ug/l, tespecttvely TBA was also detected to <br /> sample-IM W-1 at 9 ltg/l No other fuel o\ygenates NN et e detected to these samples <br /> AnaKttcal t esults fi om the monttot rlig well 91 ound water samples at e summal tzed In Table 5 The <br /> ' labor atory t eport (THAI Lab 1D Number s 39847 thl ough 39849),QA/QC and chain-of-custody al e <br /> . Included to Appendix E <br /> Idiaur4 if GcoL7,it unmcnt 11,1n <br />