Laserfiche WebLink
19 July 2000 <br /> AGE-NC Project No 96-0232 <br /> Page 13 of 29 <br /> • <br /> 5 5 2 Laboratory Results of Ground Water Samples <br /> During the 15, 16 May 2000 sampling event of multi-level wells MW-8 through MW-13,TPH-g was <br /> detected in samples collected from MW-9A,MW-I2A, and MW-I3A (First Zone) at concentrations <br /> as high as 130 µg/1 in MW-13A TPH-g was detected in samples collected from MW-8C (Primary <br /> Aquifer Zone) and in MW-I OE (Primary Aquifer Zone) at concentrations of 54 µg/1 and 88 µg11, <br /> respectively <br /> TPH-d was detected in samples from Second Zone (MW-8A, MW-9A) and from First Zone <br /> (MW-12A, MW-13A) at concentrations as high as 700 µg/1 in MW-12A TPH-d was detected in <br /> samples collected from MW-11C, MW-12C, and MW-13C (Secondary Aquifer Zone) at <br /> concentrations as high as 940 µg/1 in MW-13C TPH-d was detected in MW-10E and MWA ID <br /> (Primary Aquifer Zone) at concentrations as high as 580µg/1 in MWA ID Toluene was detected in <br /> samples collected from MW-12A and MW-13A at concentrations of 33 µg/1 and 063 µg/l, <br /> respectively <br /> MTBE was detected by EPA Method 8260 in samples MW-9A,MW-11 A, MW-12A, and MW-13A <br /> at concentrations as high as 2,500µg/l (MW-13A) MTBE was detected in samples collected from <br /> 0 MW-11D (Primary Aquifer Zone) at a concentration of 7 0 µg/1 <br /> 0 ETBE was detected in sample MW-11D at a concentration of 2 5 4g/1 TAME was detected in a <br /> sample collected from MW-13A at a concentration of 87 µg/1 TBA was detected in samples <br /> collected from MW-8C,MW-10A,and MW-10C at concentrations of 7 8µg/l, 24µg/1, and 8 6µg/l, <br /> respectively <br /> Ethanol was detected in a sample collected from MW-11D at a concentration of 1,200,000µg/1 As <br /> noted in the 19 June 2000-Problem Assessment Report, the high ethanol content is probably caused <br /> by use of bentonite having an ethyl alcohol/ethyl acetate coating EDB was detected in the sample <br /> collected from MW-IOA at a concentration of 1 6 4g11 <br /> Methanol, ethanol, MTBE, TBA, DIPE, ETBE, and TAME were not detected In the water samples <br /> collected from the Flag City municipal well No I and No 2 above the laboratory reporting limit by <br /> EPA Method 8260B <br /> Analytical results of the ground water samples are summarized in Tables 3 and 4 The laboratory <br /> reports and chain-of-custody forms are presented in Appendix I <br /> 0 <br /> • Adtianeed GeoEn%ironment2l,Inc <br />