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4634 Soil Characterization Report
<br /> Proposed Women's and Children's Pavilion
<br /> May 27,2005
<br /> Page 4
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<br /> Table 2-Summary of CAM 17 Metals Results
<br /> Arsenic Barium Chromium Hexacm Cobalt Copper Lead Nickel Selenium Vanadium Zinc
<br /> miu
<br /> Analytical Method: 6010B 6010B 6010B 7196A 6010B 6010B 6010B 6010B 6010B 6010B 6010B
<br /> Reporting Limit(mg/kg): 1.0 1.0 1.0 0.10 1.0 1.0 1.0 1.0 1.0 1.0 1.0
<br /> i.r Sample ID Date
<br /> 4634-(l,2,3,4)-4 5/11/05 <1.0 180 45 NA 12 37 41 37 <1.0 52 70
<br /> 634-(5,6,7,8)-4 5/12/05 <1.0 190 44 NA 12 28 6.3 37 <1.0 51 42
<br /> +� 634-(9,10,11,12)-4 5/12/05 <1.0 200 51 NA 14 35 7.5 43 1.1 56 48
<br /> 634-(13,14,15,16)-4 5/13/05 <1.0 210 52 NA 16 37 8.2 45 <1.0 58 50
<br /> 634-(17,18,19,20)-4 5/13/05 1.0 200 42 NA 13 28 8.9 37 <1.0 55 48
<br /> 634-(1,2,3,4)-9 5/11/05 2.9 150 51 NA 15 38 7.2 48 <1.0 70 54
<br /> 634-(5,6,7,8)-9 5/12/05 2.8 170 52 NA 14 37 7.4 48 <1.0 68 ::54
<br /> 634-(9,10,11,12)-9 5/12/05 2.3 180 54 <0.10 16 40 8.3 50 <1.0 69 57
<br /> 634-(13,14,15,16)-9 5/13/05 2.6. 160 54 NA 18 42 8.1 53 <1.0 71 58
<br /> 634-(17,18,19,20)-9 5/13/05 2.6 120 39 NA 13 28 14 35 1.1 58 59
<br /> 634-(1,2,3,4)-16 5/11/05 1.7 150 41 NA 12 29 5.6 37 <1.0 56 42
<br /> 634-(5,6,7,8)-16 5/12/05 1.4 110, 40 NA 11 27 5.3 35 <1.0 53 41
<br /> 634-(9,10,11,12)-16 5/12/05 1.2 150 51 NA 11 33 5.8 42 <1.0 56 44
<br /> 634-(13,14,15,16)-16 5/13/05 <1.0 160 48 NA 15 34 6.5 44 <1.0 58 47
<br /> 634-(17,18,19,20)-16 5/13/05 2.1 1 200 50 NA 15 36 6.7 1 48 <1.0 65 50
<br /> mg/kg:milligrams per kilogram,parts per million.
<br /> NA:not analyzed
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<br /> 5.0 CONCLUSIONS
<br /> Based on the laboratory analytical results, no petroleum hydrocarbons (TPH-G, TPH-D, TPH-M, TPH-
<br /> K), asbestos, or VOCs were detected in any of the 15 composite soil samples. One OCP, dieldrin, was
<br /> detected at 28 micrograms per kilogram (µg/kg) in composite sample 4634-(9, 10, 11, 12)-4, well below
<br /> the hazardous waste concentration of 8,000 pg/kg defined in Title 22 of the California Code Regulations.
<br /> Composite sample 4634-(1,2, 3,4)had a laboratory analytical result of 41 mg/kg lead.This concentration
<br /> of lead is above regional background lead levels, but is below the Title 22 limit of 350 mg/kg lead and is
<br /> also below the "trigger level" of 50 mg/kg lead that would requirea waste extraction test. All metal
<br /> 6w concentrations remain consistent with regional background data from the immediate vicinity and are not
<br /> considered contaminants of potential concern.
<br /> 6.0 RECOMMENDATIONS
<br /> Based on the laboratory analytical results,it is Condor's opinion that excavated soil can be used for
<br /> fill soil off Site, or disposed of at a non-hazardous waste disposal facility (subject to landfill
<br /> '-� acceptance). However, if indications of contamination are discovered during excavation activities,
<br /> Condor recommends that the affected soil be tested for the suspected contaminants. Any recipient
<br /> of this soil should be provided the results of this study.
<br /> i l� CONDOR
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