Lab Analysis.pdf

This document is a Report of Analysis from Marine Chemist Service, Inc. detailing asbestos testing for samples collected from the USCG Base Portsmouth. The laboratory analysis, conducted on 04/21/2025 using Polarized Light Microscopy, examined two samples: a black mastic with 8% chrysotile asbestos and a multi-layered tile sample with chrysotile asbestos detected in layers 3 (2%) and 4 (10%). The samples were collected on 04/15/2025 by the customer from the Coast Guard facility located at 4000 Coast Guard Blvd in Portsmouth, VA, with the analysis following EPA Method 40 CFR/Appendix E/Subpart E/Part 763. The report includes detailed composition breakdowns of both asbestos and non-asbestos materials in each sample layer, indicating the presence of asbestos in multiple sample locations.