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4633 Soil Characterization Report
<br /> Proposed Parking Structure
<br /> May 27,2005
<br /> Page 3
<br /> on this sample due to the results of the STLC. Based on the results of the TCLP (non detectable), the soil
<br /> must be removed and/or transported to another facility capable of accepting the levels of lead detected.
<br /> Initial laboratory analytical results indicated an elevated lead concentration in composite sample 4633-(1,
<br /> 2, 3, 4)-4 at 220 mg/Kg. The composite sample was analyzed discretely by the laboratory. Discrete
<br /> sample analytical results for sample 4633-(1, 2, 3, 4)-4 indicated a maximum concentration of 34 mg/Kg
<br /> lead in sample 4633-3-4. Since the discrete results were inconsistent with the original composite result,
<br /> another composite analysis was performed. The second composite analysis was approximately 10 times
<br /> less (28 mg/Kg lead) than the original result (220 mg/Kg). The laboratory analytical results for discrete
<br /> sample analyses are included in Table 3, below. Copies of laboratory analytical results and chain-of-
<br /> custody records for the samples are included in Appendix C.
<br /> Table 1 Summary of VOCW5/10/05 <
<br /> OCP,PCB,Asbestos, and TPH Anal tical Results
<br /> R10,
<br /> ethods082 VOCs OCP PCB Asbestos TPH-G,-
<br /> (mg) (pig) (µg/kg) PLM(%) D,M,K
<br /> Limits ) 0.005 2.0-85 PQL 16 0.25 (mg/kg)
<br /> 1.0
<br /> ple ID
<br /> 2,3,4)-4 <0.005 <2.0-<85 <16 <0.25 <1.0
<br /> 4633-(5,6,7,8)-4 <0.005 <2.0-<85 <16 <0.25 <1.0
<br /> 36(4,4'DDE),
<br /> 1,12)-4 <0.005 55(4,4'DDT), Arochlor <0.25 <1.0
<br /> v 71(Chlordane), 1260:31
<br /> 2.3(Dieldrin)
<br /> 633-(13,14,15,16)-4 5/10/05 <0.005 <2.0-<85 <16 <0.25 <1.0
<br /> 4633-(1,2,3,4)-9
<br /> 33-(1,2,3,4)-9 5/9/05 <0.005 <2.0-<85 <16 <0.25 <1.0
<br /> 633-(5,6,7,8)-9 5/9/05 <0.500 <2.0-<85 <16 <0.25 <1.0
<br /> Units: Analytical
<br /> mg/kg=milligrams per kilogram VOCs=Volatile Organic Compounds(see Appendix C for list of constituents)
<br /> =parts per million(ppm). OCP=Organochlorine Pesticides
<br /> V
<br /> gg/mg=micrograms per kilogram PCB=Poly Chlorinated Biphenyls
<br /> =parts per billion(ppb) , TPH-G, TPH-D, MO, K= total petroleum hydrocarbons, quantified as gasoline,
<br /> diesel,motor oil,and kerosene,respectively.
<br /> Table 2-Su mary of CAM 17 Metals Results
<br /> Arsenic Barium Chromium Cobalt Copper Lead Nickel Selenium Vanadium Zinc
<br /> Analytical Method: 6010B 6010B 6010B 6010B 6010B 6010B 6010B 6010B 601013 6010B
<br /> 6.' Reporting Limit(mg/kg): 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
<br /> Sample ID Date
<br /> 633-(1,2,3,4)-4 5/9/05 1.2 200 46 14 35 *28 41 <1.0 54 71
<br /> 633-(5,6,7,8)-4 5/9/05 <1.0 220 48 13 32 27 38 <1.0 55 58
<br /> 633-(9,10,11,12)-4 5/10/05 <1.0 230 43 12 31 56 35 <1.0 49 110
<br /> 633(13,14,15,16)-4 5/10/05 1.2 180 43 12 31 6.7 37 1.5 65 46
<br /> r
<br /> 633(1,2,3,4)-9 5/9/05 <1.0 190 49 14 34 7.9 44 <1.0 59 51
<br /> 633(5,6,7,8)-9 5/9/05 <1.0 160 51 15 36 7.3 46 <1.0 64 53
<br /> mg/kg:milligrams per kilogram,parts per million
<br /> *Initial analysis reported as 220 mg/kg lead.Discrete and second composite results indicate non-reproducible concentration
<br /> ar
<br /> �•1� CONDOR
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