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6.2 Non-ASTM Services Building Components (3 5� In general, building components that are in good condition are not expected to represent a health and safety concern to the occupants of a property. Please refer to the table below for a general 4-odescription of the building components observed during AEI's site inspection. Observed Building Components ` Material Location Condition Drywall Systems Throughout Main Building Interior Good Vinyl Flooring Throughout Office Space Interior Fair Acoustic Ceiling Tiles Throughout Office Space Interior Good Roofing Systems Roof Not Inspected Building components were observed to be in good condition during AEI's site inspection. Asbestos-Containing Building Materials For buildings constructed prior to 1980, the Code of Federal Regulations (29 CFR 1926.1101) states that all thermal system insulation (boiler insulation, pipe lagging, and related materials) and surface materials must be designated as "presumed asbestos-containing material" (PACM) unless proven otherwise through sampling in accordance with the standards of the Asbestos Hazard Emergency Response Act. Regardless of building construction date, the EPA's National Emission Standards for Hazardous Air Pollutants (NESHAP) requires that an asbestos survey adhering to AHERA sampling «- protocol be performed prior to demolition or renovation activities that may disturb ACMs. This requirement is typically enforced by the local air pollution control or air quality management district, and specifies that all suspect asbestos-containing materials (ACMs) be sampled to �- determine the presence or absence of asbestos prior to any renovation or demolition activities to prevent potential exposure to workers and/or building occupants. `- In general, the following commonly-encountered building components are considered to be friable materials: acoustical plaster, fireproofing, drywall systems, ceiling tiles, wall and ceiling texturing, thermal systems insulation (TSI), various mastics, and roofing products. The following commonly-encountered building materials are considered to be non-friable: vinyl floor tile, sheet vinyl flooring, and asbestos-cement products. Lead-Based Paint Lead-based paint is defined as any paint, varnish, stain, or other applied coating that has 1 mg/cm2 (or 5,000 ug/g by dry weight) or more of lead. Section 1017 of the Housing and Urban Development Guidelines, Residential Lead-Based Paint Hazard Reduction Act of 1992, otherwise known as "Title X", defines a lead-based paint hazard is "any condition that causes •- exposure to lead that would result in adverse human health effects" resulting from lead- Phase I Environmental Site Assessment AE 1 Project No.274968 .� October 11,2007 Page 24