Attachment 2.3 668-24-108 Drawings.pdf

This document is a set of construction drawings and specifications for repair of sanitary waste piping at the Mann-Grandstaff VA Medical Center. The project covers multiple floors (Fourth through Eighth) and includes replacement and installation of new sanitary pipe and bottle fill stations.

The scope of work encompasses demolition of existing elements including plaster walls, clay block, access doors, metal blank-off plates, and vinyl base, with selective retention and reuse of plastic bumper rails, handrails, wall finishes, and corner guards where undamaged. New work includes installation of 12-gauge framing with Unistrut supports, CMU filling of cavities, ceiling patching and replacement of ceiling pads within ICRA enclosures, wall preparation and painting to Level 5 finish, and installation of new base materials. Critical requirements include compliance with asbestos-containing materials (ACM) abatement practices and lead-based paint management, with ground-penetrating radar (GPR) scanning by contractors possessing five years of experience required prior to wall cutting. All existing cable trays, piping, and ducts must be replaced if damaged, and fire-rated assemblies must be maintained with proper labeling and draft stops. The contractor must notify the VA Contracting Officer's Representative (COR) if conditions are unsuitable for construction at the required pre-construction meeting, given that the VA has elected to proceed without comprehensive remediation of identified wall and door frame deficiencies observed during field investigation. Paint work includes HEPA-approved dust collection methods and fire-sealant closure of all chase cavity gaps to achieve UL-approved 1-hour fire-rated systems for insulated piping.