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a. 06 November 1997 - AGE-NC Project No. 97=0347 Page 3 of 4 4.2. 'ANALYTICAL•RESULTS OF SOIL SAMPLES- - Organic vapor was detected at. depths of 15 feet, 20 feet, 25 feet, 30 feet .and 35. feet bsg-at [ concentrations of 804•parts per'niillion (ppm),.11 ppin, .3 ppm, L5 ppm and 1 ppm, respectively: Neither organic vapor nor hydrocarbon odor«-ere encountered in the remaining samples collected. TPH-g, ethylbenzene and xylenes.were detected at,a depth of 15 feet at concentrations of 4,100 ppm' (reported as milligrams per.kilogram), 17 ppm and 1,50 pprn;respectivcly. Petroleum hydrocarbons.. were not detected in the remaining samples analyzed (131=20,-B1=253 B1-46 and 131-64).'Analysis - of samples B1-15 and Bi-46 by EPA method 8260 detected ethylb.enzene, o-xylenes,m&Ii-xylenes, sec-butylbeilzene, isopropylbenzeire, p-isopropylLei�zeaie,` naphthalene,) n-propylben�ene, 1_,2;4= r trimethylbenzene and 1,3;5-triinethylbenzene at concentrations of 12 ppm, 10 pl)m, 89 ppm 4.3 l ppm;.8.5 ppm, 1 Z ppm, 17 ppm; 23. ppin, 160 ppin aild 56.ppii.;.respectively, only in the sai Pld _ collected from a depth of 15 feet bsg. MTBE and acetone were detected in-'the sample collected from. [ ' a depth of 4< feet bsg at concentrations of 7.4 and "IAO pp respectively. MTBE BE was no[detccted at a depth. of 1.5 feet bsg.,Other oxygenating compounds were not detected at the site: Analytical- results of soil samples are summarized on Tables 1:and`2. The laboratory report.(AAL Batch No. 97-0820-010) and chain-of-custody forms are included iii-Appendix B1..- 5.0. 5.0. SUMMARY AND CONCLUSIONS Based upon data collected from the site, AGE:concludes-the following:" Petroleum hydrocarbons were detected in the sample collected at a-depth..o:f 15.feet bs Petroleum hydrocarbons were not.detected i.nsample-s collected at depths of 20, 25, 46,and 64 feet bsg. n • _ MTBE and,acetone were detected iii the:soil sample collected from a-depth of 46 feet. HoNvever, these constituents were not detected in the sample collected at a depth of 15,feet, directly beneath fhe former.UST location. y K Seven additional consfiiuents were detected at-a depth of 15 feet bsg by EPA-method 8260. However, none'of these' constituents havo" stab'fished-concentrations for drinlciiiQ.watei standards. Additionally; none of these constituents were detected in the sainple collected-at { a depth of 46 feet bsg: _ 6. cnN, t ' - ^-•- Advan cyd GeoE' -�i�oniiTen aI,Inc.