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Asbestos Containing <br />Materials Survey <br />4629 Nodh Ovedand Trail <br />La Porte, Colorado <br />1. Introduction <br />ARCADIS G&M, Inc. (ARCADIS) has compieted an ACM survey at the Holcim, Inc. <br />Plant located at 4629 North Overland Trail, La Porte, Colorado. ARCADIS utilized <br />Landmark Environmental, Inc. (Landmark) to complete the sampling and reporting <br />portions of the scope of work. <br />The purpose of the ACM survey was to identify the presence, location, quantity, <br />~ri~bility, and condition of ACMs located within the structure. The survey was <br />cotducted according to EPA Asbestos Hazard and Emergency Response Act <br />(AHERA) and Occupational Safety and Health Association (OSHA) 29CFR1926.1101 <br />protocols, as well as generally accepted industry standazds. Asbestos inspection <br />activities were conducted by AHERA and CDPHE accredited personnel. <br />2 Asbestos Sample Collectlon and Analysis <br />Bulk samples of the suspect ACMs were collected in a random and representative <br />manner, as determined by the inspector. Inspectors collected bulk material samples by <br />taking a composite core that includes all layers within the suspect ACM. <br />The bulk suspect asbestos samples were submitted to Reservoirs Environmental <br />Services, Inc., (Reservoirs) located in Denver, Colorado. Reservoirs is a National <br />Voluntary Laboratory Accreditation Program (NVLAP) accredited laboratory and is <br />accredited by the American Industrial Hygiene Association (AIHA). The samples <br />were analyzed by Polarized Light Microscopy (PLM) to determine asbestos type and <br />content. If PLM analysis identified less than 3 percent asbestos (except in window <br />glazing putty samples), additional point count analysis was performed to more <br />accurately determine asbestos content in those materials. <br />The total asbestos reported is the average of all components in the material, with the <br />asbestos content of separate layers also identified. Unused portions of samples are <br />azchived for 60 days unless the client requests special handling. Laboratory analysis <br />sheets are included in Appendix C. <br />t~ nots~woi a,n..m"9mia ~wecsvbanwvNmmmwwy~+~wnn ~oul+~aotdoc <br />