Mold Remediation - Bld 122

Contractor to supply submittals on all materials not specified below for Contracting Officer approval and coordination. Substitutions require Contracting Officer approval. Work site contains no ACM Dispose of all building material in accordance with base regulations. This Statement of work outlines the work done in B122 to remove mold in HVAC system and countertops. The building is 10,000SF. I. Cleaning / Removal of Mold Contamination in HVAC System A. Air Handling Units - Remove all visible, surface contamination from the following locations using either Microban, Sporocidin or equivalent products: a. Blower unit (housing, blades, shaft, supports) b. Inside AHU cabinet - all surfaces c. Outside air intake (OAI) ducts and louvers d. Return air ducts and supply air trunk lines i. Install hinged access doors (24"x 24") in bottom of main trunk lines to facilitate entry for cleaning. Note: Wherever lined ducts (main) are encountered and mold growth is established, the liner shall be removed and replaced with new insulation liner or externally insulate the ducts. - Clean and disinfect drip pans - HEPA vacuum all surfaces once removal is completed. B. Supply Air Ducts - Brush and vacuum all lateral ducts including flex ducts - Remove and clean all supply air diffusers using surface cleaner (Sporocidin, Microban or equivalent); replace after drying. C. Spray Sealers The internal components of the AHUs shall be sealed with a high volume spray sealer to protect the surfaces from dust and mold collection. The sealers will provide a smooth surface to resist dust and mold accumulation. Contractor shall determine applicability of sealers to supply facility project and provide submittals on recommended compound. The following products are listed for reference: - Foster 40-20TM - Fungicidal Protective Coating or equivalent. For use in un-lined duct systems which guards against re-growth and spread of odor-causing bacteria and mold on the coated surface of the HVAC system and its components. - Foster 40-10TM - Duct Liner Adhesive Coating or equivalent. For faced or unfaced fiberglass duct liner insulation or duct board insulation. This will act as an effective air erosion preventive; resists molds and staining. - Foster 40-60TM - Drip Pan Coating or equivalent. Used for protection of metal drip pans used in HVAC systems. Products shall provide long-term resistance against fungus, algae, and bacteria. Foster Products may be purchased from ARAMSCO, Dallas, TX (+1 (555) 000-0000) or ordered directly from any Foster supplier (Contact: +1 (555) 000-0000). D. Wet Wipe Occupied Spaces - Wet-wipe all horizontal surfaces in offices using a mild detergent solution or commercial cleaners (e.g. Mr. Clean Multi-Surface or Spic and Span everyday antibacterial spray cleaner); cleaners shall contain multiple-dimethy ammonium chloride compounds that are anti-bacterial and antifungal. E. Carpet and Hard-floor Cleaning - Steam clean carpeted areas and wet-wipe hard floors with approved anti-bacterial and antifungal cleaning solution. Contractor shall determine phasing of project to minimize relocation of personnel. F. UV Lighting - Provide and install appropriately sized and rated Bacteria and Mold inhibiting Ultra Violet lighting system in each air handler. Submittal Required. G. Clearance Inspection - A final clearance inspection and testing shall be accomplished following the completion of the abatement project. Government shall independently contract for inspection services. Air and surface testing will provide needed clearance criteria data that the building HVAC system is safe for use. Discrepancies shall be remedied as identified in final report. Contractor shall determine if phasing of project is necessary to ensure absolute safety of occupants during the cleaning and treatment process. Only one HVAC unit (EAST or WEST) will be treated at one time. The other unit will remain active to provide partial conditioning during abatement.