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Page 1 Sampling Methodology EP utilized visual observations to determine the sampling strategy in accordance with current industry standards for a pre-renovation asbestos survey to determine the presence of suspect asbestos-containing materials. th Mr. Matthew Romer (TDSHS License # 60-3643) performed the asbestos sampling on August 25, 2023. On this date a walk-through was conducted within the subject property to determine the presence of suspect materials that were accessible and/or exposed. Materials that were similar in general appearance were grouped into homogeneous sampling areas. Following the walk-through, the inspector collected samples of all building materials defined as suspect Asbestos- Containing Building Material (ACBM). Sampling locations were chosen to be representative of the homogeneous sampling areas that would be disturbed during renovation activities. A total of eighty-seven (87) samples were collected representing twenty-nine (29) homogeneous areas. Laboratory Methodology Bulk samples obtained from the facility were analyzed in an independent National Voluntary Laboratory Accreditation Program (NVLAP) laboratory using Polarized Light Microscopy (PLM) with dispersion staining (Crisp Analytical, L.L.C.,1929 Old Denton Road, Carrollton, Texas 75006; NVAP #200349-0; TDSHS #30-0235). Samples were analyzed using Polarized Light Microscopy (PLM) (EPA 600/r-93/116) with dispersion staining. The results of this analysis are summarized in the ÐFindingsÑ portion of this section. Analysis was performed by using the bulk sample for visual observation and slide preparation(s) under microscopic examination and identification. The samples were mounted on slides and then analyzed for asbestos (chrysotile, amosite, crocidolite, anthophyllite, and actinolite/tremolite, and fibrous non-asbestos constituents). Asbestos was identified by refractive indices, morphology, color pleochroism, birefringence, and extinction characteristics. The same characteristics were used to identify the non-asbestos constituents. The laboratory report and chain of custody is attached to this letter. Findings Of the twenty-nine (29) homogeneous areas analyzed, ten (10) tested positive (>1% asbestos) for asbestos- containing materials. A positive stop was issued for all samples. A copy of the Laboratory Report showing asbestos content and material layers is appended. th Materials identified to contain asbestos from the initial survey conducted on August 25, 2023, consist of the following: Roofing MembraneCeiling Plaster Roof FlashingFlange Gasket Parapet WallThermal System Insulation 12x 12Ñ Vinyl FloorAggregate Wall Covering Ceramic Wall TilePlaster Ceiling (Rough) These are the ACM present within the subject Grand Theatre of renovation See Appendix A Table for further details. It has been a pleasure to be of service to you. If you have any questions or comments, please do not hesitate to contact EP at (214) 303-1099 ext. 104 or email at matt@envirophase.com. Sincer ely,