Cleaning NOAA Bldgs. 1 and 2 Statement of Work.docx

! Marine Operations Center Norfolk Virginia Statement of Work fMay 15, 2020

NOAA Gulf Marine Support Facility Bldg. 1: 1st and 2nd Floor - Clean Air Conveyance System (to include 3 Air Handling units, supply ductwork, return ductwork, outside air intake, registers, diffusers, grilles, turning vanes and dampers) and commercially sanitize both Bldgs. 1 and 2.

Bldg. 1: Clean 10 mini splits and 3 window units Bldg. 2: Clean Air Conveyance System and all associated ductwork 439 W. York St., Norfolk, VA

DESCRIPTION OF WORK:

All Indoor Air Quality (IAQ) procedures will be performed according to the National Air Duct Cleaners Association industry standard ACR-2013 and current CDC guidelines.

The HVAC system is cleaned using mechanical cleaning methods designed to dislodge and extract contaminants from within the HVAC system components. Mechanical cleaning techniques employ sizeable vacuum collection units, portable vacuum collection units, mechanical agitation systems, hand brushing tools, pressurized air sources, pressurized water sources, plus other tools and equipment to dislodge attached particulate and debris and convey it to a collection device in a safe and controlled manner. Ducts are accessed by service openings. Service openings are made in accordance with SMACNA standards as required to satisfactorily perform assessment, cleaning and restoration procedures.

Contact vacuuming utilizing HEPA-filtered equipment is performed in designated areas of the HVAC system. Cleaning is performed by the application of the vacuum in combination with a brush attachment directly to the contaminated surface. The HVAC component being remediated using HEPA contact vacuuming is negatively pressurized using a vacuum collection device. Cleaning methods are employed such that all HVAC system components are visibly clean. Registers, grilles, diffusers and other air distribution devices are cleaned and restored to their previous position. Visible surface contamination deposits are removed in accordance with NADCA ACR 2013.

Commercial cleaning will be done in IAW current CDC recommended guidelines. All walls, ceilings, flooring, furniture and office equipment will be cleaned using a HEPA vacuum system to thoroughly sanitize structural surfaces. In additions contractor will be damp wiping porous and semi-porous surfaces with 5-7% Hydrogen Peroxide solution and fogging 5-7% Ionized Hydrogen Peroxide (H202) Solution.

Work Procedures:

· Prior to the commencement of any cleaning work, Vendor shall perform a visual inspection of the HVAC system to determine appropriate methods, tools and equipment required to satisfactorily complete this project.

· Damaged system components found during the inspection shall be documented and brought to the attention of the owner.

· All work shall comply with OSHA standards. Vendor technicians maintain a copy of the SDS (Safety Data Sheet) on all products stored and used in the duct cleaning operations.

· HVAC System will be locked and tagged out for our safety, as well as the safety of the equipment.

· Technicians will bring equipment to the area and prepare the workspace by covering furnishings as necessary.

· Where possible, ducts will be accessed from pre-installed access doors or by removing supply diffusers and return grilles.

· Where necessary, access panels are installed at various points of the HVAC duct system for physical and mechanical entry and inspection in accordance with industry codes and standards. All access panels are installed according to SMACNA standards.

· Technicians utilize ladders and lifts as necessary to access ductwork, according to OSHA standards (or specific job site requirements).

· The following NADCA cleaning methods are used:

· Contact vacuuming consists of using HEPA-filtered vacuum equipment, hoses up to 100’ long with extension wands and a brush to agitate the dust for collection.

· Air Washing utilizes compressed air and agitation devices, along with HEPA-filtered vacuum equipment.

· After cleaning each section is complete, the service opening will then be closed but will remain unsealed until inspected and signed off on by the owner’s appointee.

· Upon completion of each area, technicians will perform another walk through to ensure everything is closed and sealed to prevent re-contamination, as well as verify work area has been cleaned.

· It is recommended that all personnel items be removed by the customer prior to cleaning

· Prior to re-entry into the facilities the Contractor shall verify H202 levels are within OSHA permissible exposure limits (At or below 1ppm) using sorbent tubes.

· Upon completion of each area, technician will obtain sign-off with owner appointee to verify work was done satisfactorily.

439 West York St, Norfolk VA 23510

(757) 441-6779 email: willie.williams@noaa.gov