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29 January 2002
<br /> ' AGE-NC Project No. 98-0466
<br /> Page 20 of 25
<br /> metals concentrations exceed any environmental guidelines. Due to labor tory equipment issues,the
<br /> soil sample could not be analyzed for formaldehyde within the hold time.
<br /> ' Analytical results of soil samples are summarized in Tables 3 and 4. Copies of the laboratory report
<br /> (MAI Lab IDs 82791, 82800, 82809, 82546, 82556, 82564, 82565, 83738 and CLS Lab ID Nos.
<br /> T3003-1A through T3003-3A) and chain-of-custody forms are included in Appendix C.
<br /> ' 4.3. ANALYTICAL RESULTS OF GROUND WATER SAMPLE
<br /> Grab ground water samples were collected from soil borings PB 1 through PB3 and PB5 through
<br /> ' PB 12 at depths of approximately 60 feet bsg; a grab ground waters le was collected from soil
<br /> boring PB4 at a depth of approximately 55 feet bsg.
<br /> ' TPH-d was detected in the water samples collected from soil boring PB , advanced near the south
<br /> steam cleaning area, and from soil boring P1312, advanced near the north storm water basin, at
<br /> concentrations of 64 µg/1 and 51 µg/1,respectively.TPH-d and TPH-mo were detected in the ground
<br /> N water sample collected fromsoil boring P138, advanced near the Millwor Building wash-down area,
<br /> at concentrations of 89 µg/l and 330 gg/l, respectively. TPH-g, TPH d and TPH-mo were not
<br /> detected in the samples collected from PB 5, PB6, PB9 and PB 11.
<br /> Formaldehyde was detected in the water samples collected from PB 10, advanced near the 44x120
<br /> Storage Building, and PBI I and PB 12, advanced near the burn pits and Orth storm water basin, at
<br /> concentrations of 110 µg/1, 120 µg/1 and 150 µg/1, respectively. Formaldehyde was not detected in
<br /> water samples collected from borings P134 through PB9.
<br /> ' Dissolved chromiumwas detected at concentrations of 0.038 mg/l,0.073 mg1l,0.026 mg/1 and 0.095
<br /> mg/1 in the water samples collected fromborings P135,PB6,PB 11 andPB 12,respectively.Dissolved
<br /> lead was detected at a concentration of 0.032 mg/l in the water sample collected from PB 11.Arsenic,
<br /> copper, nickel and zinc were not detected in the analyzed samples.
<br /> ' VOCs, SVOCs and phenols were not detected above laboratory repoiting limits in the analyzed
<br /> ground water samples.
<br /> ' Analytical results of the grab groundwater samples are summarized in T bles 5 and 6. Copies of the
<br /> laboratory report(MAI Lab IDs 82532, 82533, 82534, 82833, 82834, 8 835, 84130, 84131, 86911
<br /> and 86912 and CTEL Laboratory IDs 0111-013-1, 0111-013-2, 0111-013-3, 0111-096-1,
<br /> ' 0111-096-2,0111-096-3,0111-096-4,0112-076-1 and 0112-076-2)and chain-of-custody forms are
<br /> included in Appendix D.
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<br /> Advanced Ce Envkoa nta4Inc.
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