Laserfiche WebLink
1 <br /> 09 September 1996 <br /> AGE-NC Project No 95-0173 <br />' Page 6 of 8 <br /> 43 ANALYTICAL RESULTS OF SOIL SAMPLES <br /> A total of twenty-six soil samples were submitted to Alpha Analytical Laboratories (AAL) for <br /> laboratory analysis Substantial concentrations of TPH-g and TPH-d were detected in soil samples <br /> collected from borings B-1 and B-2, with moderate concentrations detected from MW-1 through <br /> MW-3, and no detection in soil samples collected from boring MW-4 TPH-g concentrations ranged <br />' from 1 6 mg/kg (milligrams per kilogram, or parts per million ppm) in MW-1 to 9,900 ppm in B-2, <br /> TPH-d concentrations ranged from 1 3 ppm in B-1 to 1,100 ppm in B-2 <br /> The highest concentrations of BTE&X were detected in soil samples collected from borings B-1 and <br /> B-2, only trace concentrations of BTE&X were detected in soil samples from MW-1 through MW-4 <br />' BTE&X concentrations ranged from 0 005 ppm in MW-4 to 700 ppm in B-2 <br /> MTBE was not detected in soil samples collected from B-1, B-2 or MW-I through 11"IW-4 <br /> Analytical results of soil samples are summanzed in Table 1 The laboratory report (A AL Laboratory <br /> Nos 96-0730-006 and 96-0730-007) and chain-of-custody are included in Appendix C <br /> 4 4 ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br />' The highest concentrations of TPH-g and TPH-d were detected in MW-3 and MW-4 The lowest <br /> concentrations of TPH-g and TPH-d were detected in MW-1 TPH-g concentrations ranged from <br />' 32,000µg11 (micrograms per liter or parts per billion ppb) in MW-1 to 100,000 ppb in MW-3, TPH- <br /> d concentrations ranged from 680 ppb in MW-1 to 2,800 ppb in MW-2 <br /> BTE&X were detected in each well, benzene was detected at the highest concentrations, ranging <br /> from 7,000 ppb (MW-1) to 14,000 ppb (MW-4) The remaining aromatic hydrocarbons (toluene, <br /> ethyl benzene and total xylenes)were detected at concentrations ranging from 610 to 9,900 ppb All <br /> concentrations of BTE&X at the site are above State of California Maximum Contaminant Levels <br /> (MCLs) for drinking water of 1 0, 150, 700, and 1,750 ppb, respectively <br /> MTBE and total lead were not detected in ground Water samples from _.N4W-1 through MIX-4 <br /> Analytical results of ground water samples are summarized in Table 4 The laboratory report (AAL <br /> Laboratory Nos 96-0806-005) and chains-of-custody are included in Appendix C <br />