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CLOSURE REPORT FOR UNDERGROUND STORAGE TANKS 879-GlU1&879-G2U1 <br /> SUMMARY OF ENVIRONMENTAL SAMPLES COLLECTED: <br /> Sample Identification Matrix Depth below Grade <br /> (Inches) <br /> 1. 9400818 Water in Excavation N/A <br /> 2. TK-01-879-G1U1-001-01-SO-192 Tank Excavation Soil 192 <br /> 3. TK-01-879-G2U1-001-01-SO-222 Tank Excavation Soil 222 <br /> 4. TK-02-879-G1U1-001-01-SO-186 Tank Excavation Soil 186 <br /> 5. TK-02-879-G2U1-001-01-SO-192 Tank Excavation Soil 192 <br /> 6. TK-05-01-879-G1U1-36-SO* Trench Excavation Soil 36 <br /> 7. TK-06-01-879-G1Ul-SP-SO-1** Stockpile Soil N/A <br /> 8. TK-07-01-879-G1Ul-SP-SO-2 Stock ile Soil N/A <br /> 9. TK-08-01-879-G1U1-SP-SO-3 Stockpile Soil N/A <br /> 10. TK-09-01-879-G1U1-SP-SO-4 Stock ile Soil N/A <br /> 11. TK-10-01-879-G1U1-SP-SO-5 Stock ile Soil N/A <br /> 12. TK-11-01-879-GlUl-SP-SO-6 Stockpile Soil N/A <br /> 13. TK01-879-131U1-01-SP-CO(concrete) Stock ile Com osite Bld s 827,836,&879 <br /> 14. TK02-879-D1Ul-01-SP-AS(asphalt) Stockpile Com osite Bld s 827,836,&879 <br /> 15. TK03-879-D1U1-01-SP-SO(soil) Stockpile Composite Bldgs 827,836,&879 <br /> *Reported as TK-03-01-879-G1U1-36-SO from California Laboratory Services. <br /> **Reported as TK-05-01-879-G1Ul-SP-SO-1 from California Laboratory Services. <br /> Matrix codes: W(water),S(soil)TC(tank contents) <br /> [X] Environmental Sample Collection Maps(Figures 1 &2)are enclosed as Appendix E. <br /> SUMMARY OF LABORATORY ANALYTICAL RESULTS: <br /> Sample Identification Analyte EPA Method Sample Concentration <br /> Number <br /> 1. 9400818 VH/Normality pH/Normality pH/Normality <br /> (Water In Excavation) pH 9040 8.5 <br /> Sampled 3 cava HVOC/AVOC HVOC/AVOC HVOC/AVOC <br /> Benzene 8260 0.8µg/L <br /> Toluene 8260 3.0µg/L <br /> 1,2,4-Trimethylbenzene 8260 1 gg/L <br /> 1,3,5-Trimethylbenzene 8260 0.4 gg/L <br /> m-Xylene and p-Xylene 8260 1 gg/L <br /> o-Xylene 8260 1 gg/L <br /> TPH-D and TPH-G TPH-D and TPH-G TPH-D and TPH-G <br /> Total Petroleum Hydrocarbons Gas Chromatography 2 m /Las weathered diesel fuel <br /> 2. TK-01-879-G1U1-001-01-SO-192 TPH-D TPH-D TPH-D <br /> (Tank Excavation Soil) Diesel Fuel 8015 ND <br /> Sampled 3/28/94 BTXE BTXE BTXE <br /> AVOC 8020 ND <br /> TPH-G PH TPH-G <br /> r <br /> Gasoline Fingerprint 8015 ND <br /> Total Lead Total Lead Total Lead <br /> Total Lead 6010 ND <br /> EDB EDB EDB <br /> Ethylene Dibromide 8011 ND <br /> 3. TK-01-879-G2W-001-01-SO-222 TPH-D TPH-D TPH-D <br /> (Tank Excavation Soil) Diesel Fuel 8015 ND <br /> Sampled 3/28/94 BTXE BTXE BTXE <br /> AVOC 8020 ND <br /> TPH-G TPH-G TPH-G <br /> Gasoline Fingerprint 8015 ND <br /> Total Lead Total Lead Total Lead <br /> Total Lead 6010 25 mg/kg <br /> FD EDB EDB <br /> Ethylene Dibromide 8011 ND <br /> 4 <br />