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MPC-6 <br />4 <br />7 <br />3' Jackhammer I I"-16"-Layer of wood. Unable to penetrate fully with <br />air pressure, so vacuum couldn't suck out soil. <br />2'8"-water level. Soil appeared to be dark brown, silty <br />CLAY, wet. <br />Slight petroleum hydrocarbon odor. <br />MPC-7 <br />4 <br />8 <br />3'8" Jackhammer V- Soft, brown, silty CLAY with coarse gravel and <br />fine cobbles. Probe pen. 13" <br />2% Transitions to gray -blue silly CLAY. Sample taken <br />for arsenic testing. <br />2.5'-Stiff ra) -blue silty CLAY. Probe pen. 1.5" to 2". <br />MPC_8 <br />4 <br />7 <br />4' Jackhammer Very Strong hydrocarbon odor throughout. <br />1 I" -Brown, silty fine to medium SAND. <br />2% Brown silty CLAY. Sample taken for arsenic <br />testing. <br />3'-Piece of concrete in hole; fill material. <br />3.5'-Dark brown, silt CLAY, wet. <br />MPC-9 <br />4.5 <br />1() <br />4' Jackhammer 15"-Stiff, brown, silty CLAY, trace fine sand. Fill. No <br />odor. <br />2.5'-Piece of wood in silty CLAY. <br />We completed the corings at 1:45 pm. APS cleaned up and left the site at 2 pm. <br />I took a composite sample of soil throughout the site, as requested by ZGF. The sample will be <br />tested for arsenic and compatibility for use as a landscaping base. <br />I left the site at 3"30 pm. <br />Please contact me with any questions 425-922-0898. <br />Carol Ravano <br />MPA Representative <br />Geotechnical and Tunnel Consultants <br />17270 Woodinville-Ruhnand Rd, Ste 703 w ntiIbur.p_Ll q t Phone (425) 486-6561 <br />Woodinville, WA 98072 Paget Fax (425)488.2660 <br />