All building material samples will be analyzed using Polarized Light Microscopy (PLM) according to current EPA regulations. If sampled materials are identified to contain less than 10% asbestos the point count method as specified by EPA NESHAP regulations can be performed at the Client's request.

The inspector will list the type of materials identified and determine the quantity of each material. Some areas may be inaccessible and not all materials can be fully quantified. For those areas, the inspector will report only the quantity observed and note that there is the possibility that additional materials are located in inaccessible areas.

EPA guidelines require that the condition of the suspect materials observed be noted. The material assessment will involve touching the materials to determine whether the material is friable and assessing the material in accordance with EPA guidelines.

Roofing materials will be sampled as a part of this project. Roof sampling typically voids a roof warranty. While Tierra is not a qualified roofing contractor, a temporary patch (roofing patch/tape or similar) can be placed over the sample location(s). Tierra recommends roof patchwork, if required, be conducted by qualified personnel. For roofs above 14 feet height, if a hatch/ladder are not present, the client will provide access (ladder, lift, etc.) to the roof if testing is required prior to demolition.

No sampling will be conducted in areas deemed a confined space, or on electrical wiring/components while energized. These will require specialized safety precautions. Tierra will attempt to collect samples from adjacent similar materials. Electrical wiring/components may be assumed ACMs until testing proves otherwise after the equipment has been de-energized with proper safety procedures in place.

A written report will be submitted which includes findings and recommendations. Field sketches (no drafting) showing the sample locations will be provided.

Under EPA regulations lead-impacted (and other metals) waste generated during demolition and abatement activities is handled as a solid waste or a hazardous waste, depending on the amount and form of the lead. Tierra will obtain representative paint chip samples for analyses of total concentration for lead. The samples will be submitted to a NELAC certified laboratory for total concentrations for lead using EPA Test Method 6010. The following is a partial list of the typical suspect lead-based paint materials that may be sampled: metal canopies, support beams, security bars, pipes, pumps, bollards, handrails, metal girders/frames, fasteners, floors, walls, siding, etc. A written report will be submitted which includes findings and recommendations. Field sketches (no drafting) showing the sample locations will be provided.