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; ���w, �Vl..��� <br />�'� �"'-'�'�'"-�- <br />� ���� <br />Citizens far����: Water�rc�ur�c� �����r <br />June6,2005 <br />Asbestos in Concrete at U.S. Military Bases <br />.:}brc �Ar arrl�.�aF �nskn! a�m�rrk rr man� �:asv4rh Aa�f�rnV�hr��a6rrrFrtk �ik�i aJi a�vq,,r �?�,�'n� �sr rax;drx� cu� ar:r <br />•F . :F�verre"2�r�a�ee�sv�m-�aderr��vvd�ito-aeir, , <br />:���•ra- :�� x•�t:i� .,: d:iiar-tatita�•x��N� rrr.-0tirxf; -0o-aurx�� rr r�7�7�id � r: �� 1t14ti��1a s.a:�.� �rri+Mra•� <br />lJrl�e.rCos fiGerspost a beallh �zrk �r�be�e x�n��dto �e air anrl anha�erl. .S•tir.•, �:.ti•: n; rriZd i�rternalzonalhealtl� ugencies <br />b�ru,tia �.;�, :� u.rGesto,r as a known cur�cev°caurin,�.nrGstance. A.rGerto.r is k�ro�v�a to ��:� ::,�� eun��er, me.rotl�elaomca (a <br />rnrB carac'erof tlae ltr�t� linings), andrr��f: rti�:r� (a s7D71-crinceY�� jn•�� •�'�..:� clirease�. <br />Test Methods and Precautions <br />Asbestos was added to a variery of building materials and is found in concrete and concrete-like <br />products. In addttion to asbestos in the concrete itself, asbestos can be �zesezat in materials used to <br />coat the asbestos such as paints and asphalt rype coarings. Some caulks,used to seal seams or joiF�sCS, <br />contain asbestos. Th�rc can also be asbestos concrete pipes or transite siding (a £ireproaf composite <br />material made of asbestos and cement), and cement ducts embedded in the concrete. Cement-like <br />products used to patch or f L� concrete and brick may contain asbestos. Literally hundreds of <br />cement-based products used Eor insularion, masonry, stueco, finishing, roads, and other applicarions <br />contain asbestos. In other words, even if the concrete does not contain asbestos that does not mean <br />that there ase not other asbestos containing products that may need to be addressed. <br />A�i important fact to keep in mind is that the procedures used to take samples of concrete a«cl the <br />inethod used to analyze those samples for asl�escos can vary. Taking samples properly is not as simple <br />�s just obtaining a piece of the concrete and sending it to a�L+ with instrucrions to test it for asbestos. <br />Poi example, in some floors, there are different layers of concrete which contain different materials. <br />There may be asbestos in one layer of the floor but no asbestos in other layers. If samples arc taken <br />for analysis, it is important that when the samples are calcer€ that a11 of the different layers or rypes of <br />concrete are analyzed individually. <br />The test methods most commonly used will not detect ail asbestos. Although the L3.S.�1�A bas started <br />the process of approving better test methods, that process is not complete. What that means is that a <br />test using polarized light microscopy may not detect all of the asbestos that is present. The fact that a <br />sa�np�e is CesCed using a method approved by �1'�. does not zxaea�� that you can be certain that the test <br />found all the asbestos in the sample. <br />Asbestos in Applied Flooring Materials <br />: T•�'�vt! u� t is the brand ��ame for a poured seamless floor that cntcred the �nael.e� in the 1940s and is <br />an example �r[applied flooring may contain asbestos. �I�l�beJJite applied to concrete floors at <br />Wisconsin's Badger Army l�mmunition Plant contains approximately 10 percent chrysnule or "white <br />