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TRANSMISSION ELECTRON MICROSCOPY <br /> ANALYTICAL REPORT <br /> Modified NIOSH 7402 Method <br /> Contact: Don Light Report No.: 328729 v.2 <br /> Address: Del-Tech Geotechnical Support,Inc. Date: Oct-06-14 <br /> 645 N.Yosemite Ave <br /> Date Received: Sep-22-14 <br /> Oakdale,CA 95361 <br /> Job Site/ Fall Air Monitoring 2014 <br /> No. Spring Semi-Annual Asb.Air Monitoring Total Samples Analyzed: <br /> CLIENT SAMPLE # I Station B —� SAMPLE LOCATION <br /> Laboratory Sample# 1323-00010-002 <br /> AIR FILTER DATA AIR PUMP DATA <br /> Type MCE 0.45um Sampling Date 091514 <br /> Time(min) 540 <br /> Diameter(mm) 25 <br /> Flow Rate(lpm) 2.1 <br /> Area(sq mm) 385 <br /> Volume(liters) 1134 <br /> CALCULATED ASBESTOS <br /> FIBER CONCENTRATION <br /> IDENTIFIED FIBERS ---- <br /> ASBESTOS OTHER Fibers Per CC Air>5um Length <br /> AMBIG. NON-ASB. Width>0.25 um <br /> ND 7 ND ND 0.0063 <br /> COMMENTS <br /> E <br /> ted(Tremolite)and Non-Regulated FILTER LOADING: MODERATE <br /> bole(Mg-Hornblende)Detected <br /> SAED PHOTO ID#'s. <br /> TEM/ANALYTICAL PARAMETERS <br /> Magnification: 15,000X ANALYTICAL SENSITIVITY <br /> Grid Openings Scanned 40 Structures/sq mm 2.6 <br /> Grid Opening Area(sq.mm) 0.0095 Structures/cc 0.0009 <br /> Scan Area(sq.mm.) 0.38 moil <br /> NOTATION KEY <br /> Chrys.-Chrysotile Asbestos ND-None Detected <br /> Amph.-Amphibole Asbestos 1 um= 1 micron=0.001 mm ANALYST SIGNATURE <br /> Ambig.-Ambiguous ID 1 mm= 1 millimeter <br /> Non-Asb.-Non-Asbestos i cc= 1 cubic centimeter <br /> *-Effective values when sample has been remobilized. <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 />