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Appendix D Direct Push Boring Investigation
<br /> Phase 11 ESA Multi-Modal Station `Six-Block Project'
<br /> January 0,2003
<br /> Page I I of 15
<br /> respectively 1,2,4-Tnmethylbenzene was detected at concentrations of 0 007, 25, and 120 mg/kg in
<br /> samples DBK4-730-10-6, DBK4-730-10-25, and DBK4-730-10-30 5, respectively Sec-butylbenzene was
<br /> detected at concentrations of 2 3, 0 22, and 3 6 mg/kg in samples DBK4-730-5-15, DBK4-730-10-15, and
<br /> DBK4-730-10-30 5, respectively 4-Isopropyltoluene was detected at a concentration of 5 1 mg/kg in
<br /> sample DBK4-730-10-30 5 N-butylbenzene was detected at concentrations of 3 3, 0 43, 2 2, and 17
<br /> mg/kg in samples DBK4-730-5-15, DBK4-730-10-15, DBK4-730-10-25, and DBK4-730-10-30 5,
<br /> respectively Naphthalene was detected at concentrations of 17, 2 1, 3 7,and 17 mg/kg in samples DBK4-
<br /> 730-5-15, DBK4-730-10-15, DBK4-730-10-25, and DBK4-730-10-30 5, respectively TPH-G was
<br /> detected at concentrations of 480, 370, 2,100, and 1,900 mg/kg in samples DBK4-730-5-15, DBK4-730-
<br /> 10-15, DBK4-730-10-25, and DBK4-730-10-30 5, respectively The sample chromatograms for TPH-G
<br /> in samples DBK4-730-5-15 and DBK4-730-10-15 did not appear to match the standard chromatogram for
<br /> TPH-G and the reported concentrations are estimated TPH-D was detected at concentrations of 6,100,
<br /> 7 6, 220, and 1,100 mg/kg in samples DBK4-730-5-15, DBK4-730-5-36 5, DBK4-730-10-15, and DBK4-
<br /> 730-10-25, respectively The sample chromatogram for TPH-D in sample DBK4-730-10-15 did not
<br /> appear to match the standard chromatogram for TPH-D and the reported concentration is estimated
<br /> Laboratory analytical results indicate I,I-DCE, 1,1-dichloroethane (1,1-DCA), cis-1,2-DCE, 1,2-DCA,
<br /> TCE, toluene, PCE, ethylbenzene, m,p-xylene, isopropylbenzene, n-propylbenzene, 1,3,5-
<br /> tnmethylbenzene, tett-butylbenzene, 1,2,4-trimethylbenzene, sec-butylbenzene, 4-isopropyltoluene,
<br /> naphthalene,TPH-G, and TPH-D were detected in the groundwater samples from the Block 4 properties
<br /> 1,1-DCE was detected at concentrations of 11, 3 7, 25, 25 17, 21, 14, 7 0, 5 1, 16, 34, 5 4, 6 0, 9 2, 7 2
<br /> µg/L in samples DBK4-701-1-9112102, DBK4-701-2-9116/02, DBK4-730-1-9/9/02, DBK4-730-2-9/9102,
<br /> DBK4-730-3-9/10102, DBK4-730-4-919/02, DBK4-730-5-9/9/02, DBK4-730-6-9/10102, DBK4-730-7-
<br /> 9/10/02, DBK4-730-8-9/10102, DBK4-730-9-9110/02, DBK4-730-11-9/11102, DBK4-730-12-9/11/02,
<br /> • DBK4-730-13-9/11/02, andDBK4-730-14-9112/02, respectively l,l-DCA was detected at concentrations
<br /> of 1 1, 1 1, 0 8, 0 8, 0 6, 0 7, and 0 7 gg/L in samples DBK4-701-1-9/12/02, DBK4-730-2-9/9/02, DBK4-
<br /> 730-3-9110102, DBK4-730-4-9/9/02, DBK4-730-5-9/9102, DBK4-730-9-9110/02, DBK4-730-11-9111/02,
<br /> DBK4-730-12-9/11/02, DBK4-730-13-9/11/02, and DBK4-730-14-9/12102, respectively Cis-1,2-DCE
<br /> and 1,2-DCA were detected in sample HBK4-730-1-9/13102 at concentrations of 0 7 and 1 3 µg/L,,
<br /> respectively TCE was detected at concentrations of 0 6, 10, 2 1, 0 7, 0 7, and 1 8 gg/L in samples
<br /> DBK4-730-2-919/02, DBK4-730-3-9110102, DBK4-730-4-9/9/02, DBK4-730-5-9/9/02, DBK4-730-8-
<br /> 9/10/02, and DBK4-730-9-9110102, respectively Toluene was detected at concentrations of 0 7, 0 5, 16,
<br /> and 0 5 gg/L in samples HBK4-701-1-9116/02, DBK4-730-6-9/10/02, HBK4-730-2-9/16/02, and HBK4-
<br /> 730-3-9/16102, respectively PCE was detected at concentrations of 1 0, 0 8, 1 0, 0 6, 0 7, 1 1, and 19
<br /> gg/L in samples DBK4-730-1-9/9/02, DBK4-730-2-9/9/02, DBK4-730-3-9/10102, DBK4-730-5-9/9102,
<br /> DBK4-730-6-9/10102, DBK4-730-8-9110/02, and DBK4-730-9-9/10/02, respectively Ethylbenzene was
<br /> detected at concentrations of 0 7 and 450 gg/L in samples DBK4-730-5-9/9/02 and DBK4-730-10-
<br /> 9/11/02, respectively M,p-xylene was detected at concentrations of 0 6, 1,100, 1 1 gg/L in samples
<br /> DBK4-730-5-9/9/02, DBK4-730-10-9/11/02, and DBK4-730-11-9/11/02, respectively Isopropylbenzene
<br /> was detected at concentrations of 1 7, 4 5, and 64 gg/L in samples D13K4-730-4-9/9/02, DBK4-730-5-
<br /> 9/9IO2, and DBK4-730-10-9/11/02, respectively N-propylbenzene was detected at concentrations of 0 7,
<br /> 3 3, and 120 gg/L in samples DBK4-730-4-9/9/02, DBK4-730-5-919/02, and DBK4-730-10-9/11/02,
<br /> respectively 1,3,5-Trimethylbenzene was detected at concentrations of 7 2 and 280 pg/L in samples
<br /> DBK4-730-5-9/9/02 and DBK4-730-10-9111102, respectively Tert-butylbenzene was detected at a
<br /> concentration of 170 gg/L in sample DBK4-730-10-9/11/02 1,2,4-Tnmethylbenzene was detected at
<br /> concentrations of 29, 960, and 13 gg/L in samples DBK4-730-5-919102, DBK4-730-10-9/11/02, and
<br /> DBK4-730-11-9/11/02, respectively Sec-butylbenzene was detected at concentrations of 4 6 and 7 0 gg/L
<br /> in samples DBK4-730-4-9/9/02 and DBK4-730-5-9/9102, respectively 4-Isopropyltoluene was detected
<br /> at a concentration of 2 3 gg/L in sample DBK4-730-5-9/9/02 N-butylbenzene was detected at
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