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0 <br /> CLOSURE REPORT FOR UNDERGROUND STORAGE TANK 805-DlU1 <br /> SUMMARY OF ENVIRONMENTAL SAMPLES COLLECTED: <br /> Sample Identification Matrix Depth below Grade <br /> (Inches) <br /> 1) TK-01-805-01-D1U1-SO-SP Stockpile Soil N/A <br /> 2) TK-01-805-02-D1U1-SO-SP Stockpile Soil N/A <br /> 3) TK-02-805-01-D1Ul-SO-11.0 Tank Excavation 132 <br /> 4) TK01-805-03-D1U1-SO-SP Stockpile Soil N/A <br /> 5) TK02-805-02-D1U1-CO-9.0 Concrete Pad 108 <br /> Under Tank <br /> Matrix codes: W(water),S(soil)TC(tank contents) <br /> [X] Environmental Sample Collection Map(Figure 1)is enclosed as Appendix D. <br /> SUMMARY OF LABORATORY ANALYTICAL RESULTS: <br /> Sample Identification Analyte EPA Method Sample Concentration <br /> Number <br /> 1)TK-01-805-01-D1U1-SO-SP TPH-D TPH-D TPH-D <br /> Diesel Fuel 8015 7.4 mg/kg <br /> BTXE BTXE BTXE <br /> AVOC 8020 ND <br /> EVOC EIVOC 1VOC <br /> HVOC 8010 ND <br /> 2)TK-01-805-02-D1U1-SO-SP STLC/TTLC STLC TTLC STLC TTLC <br /> Arsenic 6010/7000 6010/7000 ND 2.6 mg/kg <br /> Barium 6010/7000 6010/7000 8.2 mg/L 130 mg/kg <br /> Chromium 6010/7000 6010/7000 ND 25 mg/kg <br /> Cobalt 6010/7000 6010/7000 ND 9.3 mg/kg <br /> Copper 6010/7000 6010/7000 ND 20 mg/kg <br /> Nickel 6010/7000 6010/7000 0.62 mg/L 25 mg/kg <br /> Vanadium 6010/7000 6010/7000 ND 48 mg/kg <br /> Zinc 6010/7000 6010/7000 2.3 mg/L 47 mg/kg <br /> CRI SBICRI <br /> pH 9040 7.5 <br /> Cyanide/Sulfide 9010/9030 ND/ND <br /> Flashpoint 1010 >140 degrees F <br /> 3)TK-02-805-01-D1U1-SO-11.0 TPH-D TPH-D TPH-D <br /> Diesel Fuel 8015 ND <br /> BTXE Em BTXE <br /> AVOC 8020 ND <br /> 4)TKOl-805-03-D1Ul-SO-SP Gross Alpha (Radiological Analytical ND <br /> Gross Beta Method Numbers ND <br /> Tritium Not Specified) ND <br /> Gamma 12ectrOSCODV Tn <br /> a Spectroscgpy <br /> Potassium-40 R 1.2E-05±0.14E-05µCi/mLgm <br /> Ra-226 4.1E-07± 0.66E-07µCi/mLgm <br /> Ra-228 6.4E-07± 1.41E-07µCi/mLgm <br /> Th-228 6.5E-07± 0.79E-07µCi/mLgm <br /> 5)TK02-805-02-D1U1-CO-9.0 diologi <br /> Method: <br /> Tritium Not Specified) <br /> Gamma 512ectrOSCODV <br /> Potassium-40 R 6.6E-06± 1.238-06µCi/mLgm <br /> Ra-226 4.1E-07± 0.54E-07µCi/mLgm <br /> Ra-228 3.6E-07± 1.32E-07µCi/mLgm <br /> —Th-228 3.9E-07±0.57E-07µCi/mLgm <br /> NOTE: <br /> mg/Kg=milligrams per Kilogram <br /> µCi/mLgm=microCuries per milliliter-gram <br /> ppm=parts per million <br /> ND=Not detected above laboratory detection limits <br /> [X] Laboratory analytical results and chain of custody records for the environmental <br /> sample(s)enclosed as Appendix E. <br /> 4 <br />