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Table 3.2 summarizes the analytical results associat d with the two USTs which were <br /> removed. Laboratory results are included in Appendix B. <br /> Table 3.2 - UST Removal:- Soil Sampl Analyses <br /> Item ! Soil Pile I S Tk W end ; S k E end 1 N Tk W end 1 N Tk E end <br /> - —..— — <br /> TPN -G __--_ iND ---rND -- - IND I'JD—� _ � SND .—...—_ <br /> T—PH - D SND— IND 1ND — _ — IND IND <br /> BTX& Ei.ND ...—_ N1 — .—_.!ND —ND ..— .-- i.ND Cr HC IIVD ND ND _IND _ __ iND <br /> MTBE etc-* ND ' IN <br /> ND ND — — iND D _ <br /> —� . — <br /> Metals in mglkg <br /> Silver ND i _ _--I _— — <br /> _�._L-- —. ND. .—. — _�ND � �.—iND �ND I <br /> Arsenic_ 2071. 0.84181 _ _ _ — <br /> 0-718! 0.63 -_ _ 0.753 <br /> � <br /> ill! <br /> -- - � - - - <br /> _Barium 217� 111 1011 — 128� —— 131 <br /> Berylium —_.. �Nq.. _LND _. �.ND _ _ ND —— © <br /> Cadmium ND SND — IND _ 1ND <br /> Cobalt ..._ .�__ 8.� 8.22 — 7.171 —_. —9.91. — 10.4 <br /> Chromium �._ 26.7 — 22.21— 18.31 — —— 291 — — _32.5 <br /> Copper 311 E — 43-4i —181 —..—.. 2521—. —. 24.5 <br /> Mercury iND SND ND ND [ND <br /> y 22 — .—.i� .--- — — — <br /> Nickeldenum - �� 25.2 ND _SND .. .—�D .— — ND ­ <br /> Nickel 2 9.�l — 2.32 <br /> 31 <br /> 5.64 1.94 I — 2.02 — — — _— <br /> Antimony - _—J ._ 1.541 ND —iND —�fVD ——. ND _ —— <br /> Selenium IND — IND IND _ ;ND — — ,ND_ — <br /> Thallium SND _ IND !ND _ IND ND <br /> Vanadium 29AL 23.81 — 20.21 — _ 29.5 — 28.8 <br /> _..— <br /> Zinc 522E 40.6 51.71 52.3 60.8 <br /> FIM-TBE, TBA, DIPS, LT--BA, TAME, EDB & 1,2 DCAi 1 i <br /> 5.0 Discussion and Recommendations <br /> 5.1 Closed in Place UST <br /> The sample from under the closed in place UST evidenced contamination from <br /> petroleum hydrocarbons. VOC levels are qui Le nominal, metals appear normal, <br /> but TPH diesel is significant. If the UST was the source of the diesel <br /> contamination,then it appears to be practical y immobile (the tank was emptied <br /> and filled with concrete in 1988). <br /> The sample from l ft. below the top of the tarik shows no evidence of <br /> contamination from petroleum hydrocarbons <br /> 4 <br />