Laserfiche WebLink
I ' <br /> II <br /> I 1 u 1 1 <br /> ' 15 September 2003 <br /> AGE-NC Project No 97-0333 <br /> I i <br /> !I� Page 3o ll <br /> I I <br /> • Total petroleum hydrocarbons quantified as gasoline and diesel (TPH-'g and TPH-d, <br /> respectively)by EPA Methods 3550/5030/8015 Modified, I I o , <br /> • Benzene,toluene,ethyl benzene and xylene(BTEX)and methyl-tertiarybutyl ether(MTBE) <br /> by EPA Method 8020, and <br /> • Tetrachloroethene (PCE), trichloroethene (TCE), 1,2-dichloroethane (1,2-DCA), ethylene I I <br /> ' di-bromide (EDB), tertiary butanol (TBA), di-isopropyl ether(RIPE), ethyl tert butyl ether <br /> (ETBE), tert amyl methyl ether(TAME) and MTBE by EPA Method 8260 Modified ! <br /> I' I <br /> 2.4 /INFLUENT MONITORING RESULTS l <br /> 1 In accordance with the requirements of CMPWD Industrial Wastewater Discharge Permit No 02-1, 'I <br /> monthly ground water,pump-and-treat influent sampling was performed on 27 March, 15 April, 14 <br /> May and 19 June 2003 for laboratory analysis of contaminants listed in Section 2 3 ` <br /> , <br /> During all four monthly monitoring events,influent water samples detected TPH-g at concentrations <br /> as high as 13,000 micrograms per liter(µg/1) in the April 2003 sample TPH-d was detected in the ! <br /> May and June samples at concentrations of 260 µg/1 and 620 µg11, respectively , ' <br /> ' BTEX-constituents were detected at concentrations as high as:3,100 µg/1 (xylene) in the April <br /> ! E sample, in addition, the`highest benzene concentration was detected in the April sample at a y <br /> concentration of 550 µg/1 <br /> MTBE was detected by EPA Method 8260 at concentrations as high as 12,000 µg/1 in the 4nl <br /> i sample,TAME was detected from the March and April samples at concentrations of 79 gg/1 and 410 1, <br /> gg/l,respectivley, PCE was detected during all four months at concentrations as high as 230µg/1 in, <br /> the June sample, TBA and TCE were detected during the April sample at concentrations of 150µg/1 <br /> and 8 µg11, respectively <br /> The laboratory analysis did not detect any other constituents of concern Analytical results Of PUMP- <br /> and-treat influent-water samples(McCampbell Analytical Inc Work Order Nos 0305231,0306428 <br /> ' and Cal Tech Environmental Laboratories I D 03 04-095'`1/2/3) 'are' summarized 'in, Table'1, I�f <br /> !' laboratory reports are in Appendix A <br /> I � I <br /> I <br /> I III` <br /> I'. <br /> r + { I I I <br /> .advanced GeoEnvironmental,inc <br />