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M <br /> P <br /> Z N-M it EMU ON <br /> -r- -=jog .,r 11 .01 _-�----V-—g.--- 7 'Ilm <br /> M, <br /> �-g <br /> A, M <br /> .5,00 <br /> RM, ew <br /> *RRM <br /> E72: <br /> gr <br /> PAN <br /> ON M <br /> IMJ. <br /> N. <br /> F. <br /> 2.0 SITE HISTORY Market and Cafe has been the focus of several tank <br /> The Collegeville Ma site characterizations- The following <br /> removals and preliminary 51t vided. to TPE by <br /> upon our review of information pro <br /> summary is based <br /> the owners and SJCLHD. the <br /> Construction removed two Of <br /> 12 1988 Nor-Cal TP_3. (1 gallon <br /> On December r An <br /> underground tanks from tank location oil tank) - <br /> existing 5()o gallon waste while <br /> regular gasoline tank and I of unknown contents, found <br /> additional 250 gallon tank was also removed. Laboratory <br /> excavating the aforementioned tanks, beneath <br /> sults indicated gasoline contamination was present - -e <br /> soil re Analytical results from tt <br /> the 1000 gallon and 250 gallon tanks- gallon waste oil tank <br /> was <br /> soil sample taken beneath the 500 <br /> nondetectable for petroleum hydrocarbon constituents. <br /> AAA Tank Removal Ser%j,ice (AAA) overexcavated <br /> on February 7, 1�)91 I enlarge the excavation the remaining <br /> In order to <br /> tank pit TP-1- removed. Laboratc�-v results <br /> lar gasoline tank was r collected by Uriah, <br /> l000 gallon regu n verification Soil samples on. Subsequently, <br /> of overexcavatio residual contaminati <br /> Inc. indicated lo,,Pl 1p-vels Of backfilled and compacted the tank <br /> after approval by SjcLHD, AAA <br /> excavation. 1991, AAA excavated and removed the 4,000 gallon <br /> Or, November 27, y, from tank location TP-2. A TPE <br /> underground) unleaded gasoline tan les from the northern and <br /> under collected soil samP In addition, soil <br /> representative f the excavation (see Figure 2) . ockpile. Chemical <br /> southern ends 0 soil excavation st <br /> samples were taken from the soil sample detected total petroleum <br /> "4000 North" 2,900 parts <br /> analyses Of th� concentration of Xylenes <br /> as gasoline (TPHG) at a concen <br /> ;hydrocarbons benzene, toluene, ethylbenzene and <br /> million (ppm) and 00 ppM, 130 ppm, and 830 PP-ms <br /> per concentrations of 3.6 ppm, 2 <br /> (BTEYQ was detected at a concentration of 6-5 <br /> respectively; total lead I e (EDB) was detected at a concentration <br /> ppm, and et}-:lene dibrov was nondetectable for all of <br /> ,Oil Sample 114000 south' xylenes <br /> of .099 ppm. I constituents tor which it was tested exceptetectable <br /> the hydrocarbon 15 ppm. EDB was nond <br /> which detected a <br /> concentration of •-0 concentration of 3.8 PPM- <br /> '; detected at a concent etected in the <br /> and total lead W�- constituents were also d <br /> hydro. -carMn c <br /> ---Petroleulll-- <br /> 2 <br />