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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 # Station A SAMPLE LOCATION <br /> Laboratory Sample# 1 1323-00010-001 <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(Ipm) 2.0 <br /> Area(sq mm) 385 <br /> Volume(liters) 1080 <br /> CALCULATED ASBESTOS <br /> FIBER CONCENTRATION <br /> IDENTIFIED FIBERS <br /> ASBESTOS OTHER Fibers Per CC Air>S Length <br /> AMBIG. NON-ASB. Width>0.25 um <br /> ND 12 ND ND ® 0.0113 <br /> COMMENTS <br /> Non-Regulated Amphibole(Mg-Homblende and FILTER LOADING: HEAVY <br /> Fe-Homblende)Detected 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 <br /> NOTATION KEY <br /> Chrys.-Chrysotile Asbestos ND-None Detected ` <br /> Amph.-Amphibole Asbestos I um= I micron=0.001 mm ANALYST SIGNATURE <br /> Ambig.-Ambiguous ID I mm= 1 millimeter <br /> Non-Asb.-Non-Asbestos I cc= I 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 />