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collected from Test Pit 1, two additional test pits wero eucavated in t6e same area (Tast Pits lA and IB) to <br /> fuither explore potential petroleum con►eminated soil. �• <br /> Test Pits IA and 1B <br /> Test Pits lA and 1F!were located just soutl�and east, respectively, of Test Pit 1. Construction debris was <br /> encountered betwezn 1.5 and 7 fa:t bgs in Test Pit lA and between 1.5 and ti feet bgs in Test Pit 1B. T6e <br /> composition of the cowtruction debris encou�rtered in Test Pits lA and IB was similar to that encountaral <br /> in Test Pit 1. Petroleum hydroca�bons and VOCs were not detacted in samples collected from Test Piu IA <br /> or 1B. <br /> 5.1.2 Test 't <br /> Test Pit 2 was located at the eastem end of the nort6 paccel. Constmction debris was encounteced <br /> betwcen 1.5 and 10 feet bgs and was limited to soil, asphalt and conerete. <br /> Petrolwm hydrocarbons in the heavy oil range wero detected in t6e sample collected from 2 feet bgs at <br /> a concenhation of 130 ppm and wece not detected ia the sample collected at a depth of 8 feet bgs. T6e <br /> petroleum hydrocarbon conautratioa at 2 fcet bgs was below the MTCA Method A residendal soil cleanup <br /> level. <br /> 5.1.3 est 't <br /> Test Pit 3 was locate3 at the sout6an end of the notth parcel. Constmction debris wes encountered in <br /> this test pit between 0.5 and 6 feet bgs. Stained soil was observed at a depth of approximauly 2 fxt bgs. <br /> Duria� excavation, other debris was observed, including the romains of a 55-gallon dcum, bottles, cans, end <br /> automodve romnants. <br /> Pdroleum hydmcarbons in the heavy oil tange and the diesel cange wero dUected in t6e sample�llected <br /> at 2 feet bgs at a concentcatioas of 1.7A0 PPm and 47 ppm, respectively. Pdrolwm hydrocarbons were not <br /> duxted in t6e sample collxted at 4 feet bgs. T6e heavy oil concentraGon at 2 foet bgs is above the MTCA <br /> Melhod A residential soil cleanup level. <br /> prsenic and lead wero detected in the samp�e wllectod at 4 feet bgs at concentratioas of 43 and 270 ppm, <br /> respec6vely, ea�ceeding 1v[TCA o�eanup levels (the cleanup level far lead in residential soil is 250 ppm). <br /> Hased on the analytical �esults of semples coUected from Test Pit 3,three additional test pits(3A, 3B and 3C) <br /> were excavated in the same area. <br /> Test Pit 3A <br /> Test Pit 3A was located direcUY wast of Test Pit 3. Consuuction debris was encountered betwxn 0.5 <br /> and 5 fcet bgs. During excavation, other debris was observed including brick, ceramic material, as6, and <br /> remnanu of e stove. <br /> Petroleum hydrocarboos in the heavy oil range and diesel range were detected in t6e samples collected <br /> from 2 and 4 bgs in Test Plt 3A at concentredons which ezcceded the MTCA Method A residenGal soil clean ,_. <br /> up level. Heavy oil-range petroleum 6ydrocnctwns were deteeted at concentrations of 270 ppm at 2 fcet bgs <br /> and 760 ppm at 4 feec bgs. Diesel-range petrolwm hydrocarbons were detected at concentrations of 1,100 <br /> ppm at 2 feet bgs and 1,400 ppm at 4 feet bgs. • <br /> 6 ►. <br /> r+ <br />