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TRANSMISSION ELECTRON MICROSCOPY <br />ANALYTICAL <br />Modified NIOSH 7402 Method <br />Contact: Don Litchfield Report No.: 084032 <br />Address: Del -Tech Geotechnical Support Date: Jun -17-10 <br />645 N. Yosemite Ave <br />Date Received: Jun -10-10 <br />Oakdale, CA 95361 <br />Job Site / <br />No. Total Samples Analyzed: 5 <br />CLIENT SAMIPLE # A SANTLE LOCATION <br />Station A <br />Laboratory Sample # 1323-00001-001 <br />AIR FILTER DATA AM PUMP DATA <br />Type MCE0.45um Time (min) 480 <br />Diameter (mm) 25 Flow Rate (lpm) 1.8 <br />Area (sq mm) 385 Volume (liters) 864 <br />CALCULATED ASBESTOS <br />STRUCTURE CONCENTRATION <br />IDENTIFIED STRUCTURES <br />ASBESTOS I OTHER Fibers Per CC Air >5um Length <br />CHRYS. I AMPR. I AMB IG. NON -ASB. Width >0.25 um <br />ND- IM] ND I ND < 0.0011 <br />COMMENTS <br />No Asbestos Detected FILTER LOADING: MODERATE <br />SAED PHOTO ID #'s. <br />TEM / ANALYTICAL PARAMETERS <br />Magnification: 10,000X ANALYTICAL SENSITIVITY <br />Grid Openings Scanned 40 Structures/sq mm 2.5 <br />Grid Opening Area (sq.mm) 0.0099 Structures/cc 0.0011 <br />Scan Area (sq.mm) 0.4 <br />NOTATION KEY <br />Chrys. - Chrysotile Asbestos ND - None Detected <br />Amph. - Amphibole Asbestos 1 um =1 micron = 0.001 nun <br />Ambig. - Ambiguous ID 1 mm =1 millimeter <br />Non-Asb. - Non -Asbestos 1 cc =1 cubic centimeter <br />* - Effective values when sample has been remobilized. <br />ANALYST SIGNATURE <br />ASBESTOS TEM LABORATORIES, INC. 630 BANCROFT WAY, BERKELEY, CA 94710 (510) 704-8930 <br />www.asbestostemlabs.com With Offices in Reno, NV (775) 359-3377 <br />