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02 November 1999 <br /> AGE-NC Project No. 99-0628 <br /> Page 6 of 8 <br /> 5.2.5. RCRA Metals <br /> Barium, chromium and lead were detected in each sample at concentrations ranging from 5.6 mg/kg <br /> (lead, DW2-28) to 180 mg/kg (barium, B1-5). Cadmium was detected only in sample DWI-28 at <br /> 0.59 mg/kg. Arsenic, mercury, selenium or silver were not detected in the dry well or discharge line <br /> samples. <br /> 5.3. ANALYTICAL RESULTS OF STOCKPILED SOIL SAMPLES <br /> Four soil samples were collected from the soil excavated from the dry wells. The samples were <br /> composited 2:1 at the laboratory for analysis. A summary of stockpiled soil sample analytical results <br /> are included in Tables 1, 2 and 3. The laboratory analytical report is presented in Appendix A. <br /> Stockpiled soil sample analytical results are detailed below. <br /> 5.3.1. Benzene, Toluene, Ethylbenzene, and Total Xylenes <br /> Toluene and xylenes were detected in composite sample SP-1-2 at concentrations of 0.007 mg/kg <br /> �- and 0.039 mg/kg. No BTEX compounds were detected in composite sample SP-3-4. <br /> 5.3.2. Total Petroleum Hydrocarbons <br /> TPH-g was detected in both composite samples at concentrations of 6.2 mg/kg and 12 mg/kg. TPH-d <br /> and TPH-mo were detected in both composite samples at concentrations of 260 mg/kg and 7,100 <br /> mg/kg. Results of TPH analysis are summarized in Table 1. <br /> 5.3.3. Volatile Organic Compounds <br /> Seven target VOCs analytes were detected in the composite stockpile soil samples at concentrations <br /> _ ranging from 6.6 µg/kg (sec-butyl benzene, SP-1-2) to 55 Acg/kg(1,2,4-trimeth.ylbenzene). No other <br /> VOCs were detected in the composite samples. <br /> 5.3.4. Semi-Volatile Organic Compounds <br /> There were no reported detections of SVOCs in the composite stockpile soil samples. <br /> Advanced GeoEnvironmental.Inc. <br />