CHANGE Environmental, LLC was contracted to provide expert consulting on an asbestos concern in a private residence. A sampling plan for bulk, dust and air samples was constructed and carried out by EFI Global and Environmental Management Solutions, Inc, (EMS) under direct management of CHANGE.
A sampling plan was provided by CHANGE to the sampling groups based on previous information provided. All samples were collected at various locations. A total of 18 bulk samples were collected and analyzed using Polarized Light Microscopy, (PLM) coupled with dispersion staining as detailed in the EPA’s “Method for Determination of Asbestos in Bulk Building Materials” (EPA/600/R-93/116). Using a positive stop method, 10 bulk sample results indicated that Chrysotile asbestos was found in several areas of sampling. Dust wipe sampling results found that six out of the 14 locations, samplings contained Chrysotile asbestos. Air samples collected on site indicated the air concentrations of asbestos fibers were found to be below the limit of detection, analysis under NIOSH Method 7400.
Based on the results of this assessment, it was recommended by CHANGE that until a full remediation was conducted and further samples collected to show all samples (bulk, dust, and air) are below limit of detection, to limit all activity and exposure to the site.