SOW (W)15554116 REPLACE DAHU 16 IN ROOM 211 - DN-355.pdf

DAM NECK-355 (W): 15554116 (eProjects): 1714205

REPLACE DAHU 16 IN ROOM 211

DAM NECK ANNEX, VIRGINIA BEACH, VIRGINIA

SCOPE OF WORK 24 March 2023 Page 1 of 18

***UNCLASSIFIED***

DAM NECK-355

At the

Naval Air Station Oceana, Dam Neck Annex Virginia Beach, Virginia

PREPARED BY:

NAVFAC MID-ATLANTIC, PWD OCEANA,

Facility Engineering and Acquisition Division (FEAD), Facility Support Contract Branch (FSCB), PRA23 NAS Oceana, 953 Hornet Drive, Building 820, Suite 213

Virginia Beach, Virginia 23460-2197

Work Package Developer: Frederick Clark

APPROVED BY:

Facilities Management Division Director: Mark Outman FSC Branch CAT III/IV Team Lead: Kevin Miller

SCOPE OF WORK 24 March 2023 Page 2 of 18

1. POINTS OF CONTACT:

FEAD Contracting Officer: Tanya Corcoran, (757) 433-2668 FEAD Contract Specialist in charge: TBD Work Package Developer: Frederick Clark, (757) 433-4212 Facility Maintenance Specialist (FMS): Andrea Thompson, (757) 433-3431 Activity POC: Adam Bellefeuille, (757) 862-9007

2. GENERAL:

2.1 The Contractor must provide supervision, labor, material and equipment required to perform all work for the following project: Replace DAHU 16 in room 211 and rooftop unit, ACC 16 at building Dam Neck-355. All work must be done in a manner to provide a complete, usable and finished end product. See paragraph “7. WORK REQUIREMENTS” for an expanded and detailed Scope of Work.

2.2 The Contractor must comply with the requirements and specifications of the most current Contract.

2.3 A Pre-Proposal site meeting may be scheduled at the project site to review and discuss the Scope of Work and assess existing field conditions, prior to Award of this Task Order.

2.4 Existing reference drawings may be available upon request. Reference drawings must be used for informational purposes only, and may not accurately reflect current as-built conditions. The Contractor must not solely rely on the reference drawings to determine existing conditions, but must field verify all existing conditions pertinent to the project.

2.5 All work must be performed in accordance with, but not limited to, standard industry practices, applicable local, state and federal codes, laws and regulations, contract specifications, Unified Facilities Criteria (UFC’s) and Unified Facilities Guide Specifications (UFGS’s).

2.6 Supervision: Have a Supervisor fluent in English on the job site during working hours at all times.

The Supervisor must be a United States Citizen or a Documented Legal Resident of the United States of America.

2.7 Equipment Inventory Form: The Contractor must submit an Equipment Inventory Form for existing equipment to be demolished/removed, or for new equipment to be provided under this contract.

The Equipment Inventory Form must be completely filled-out and provided for each piece of equipment as stated in “PART 8 – ATTACHMENTS, EQUIPMENT LISTING”. Further clarification on the equipment types must also be discussed at the PAK or Pre-Construction Meetings, or as directed by the Contracting Officer.

Submit all Equipment Inventory Forms to the Contracting Officer, prior to demolition of the existing equipment and prior to installation of the new equipment. (See PART 8 – ATTACHMENTS for the Equipment Inventory Form to utilize).

SCOPE OF WORK 24 March 2023 Page 3 of 18

3. SPECIAL SCHEDULING REQUIREMENTS/WORK PROCEDURES:

3.1 The project Contract Completion Date (CCD) must be 120 calendar days from Award of this Task

Order.

3.2 Existing and adjacent spaces to remain in operation during construction must be protected from damage, dust, and debris at all times. Damage to any existing spaces, finishes, items, furniture and equipment, as a result of the Contractor’s operations, must be replaced in-kind by the Contractor at no expense to the Government.

3.3 UTILITIES LOCATION AND VERIFICATION (Exterior): Prior to digging, the appropriate digging permit must be obtained. All underground utilities in the work area must be positively identified by a private utility locating service in addition to any station locating service and coordinated with the station utility department, prior to any digging. Any markings made during the utility investigation must be maintained throughout the contract. The Contractor must physically verify underground utility locations by hand digging using wood or fiberglass handled tools when any adjacent construction work is expected to come within three feet of the underground system. Digging within 2 feet of a known utility must not be performed by means of mechanical equipment; hand digging must be used. If construction is parallel to an existing utility expose the utility by hand digging every 100 feet if parallel within 5 feet of the excavation.

3.4 UTILITIES LOCATION AND VERIFICATION (Interior): Utilities located within concrete slabs or pier structures, bridges, and the like, are extremely difficult to identify due to the reinforcing steel used in the construction of these structures. Whenever contract work involves concrete chipping, saw cutting, or core drilling, the existing utility location must be coordinated with station utility departments in addition to a private locating service. Outages to isolate utility systems must be used in circumstances where utilities are unable to be positively identified. The use of historical reference drawings does not alleviate the contractor from meeting this requirement. The contractor must perform positive identification and locating of existing utilities prior to any concrete chipping, saw cutting or core drilling of any kind.

3.5 The Contractor must utilize existing isolation valves (if available and usable/pressure holding) and other types of non-destructive system(s) isolation to minimize the draining of potable water, chilled water, condenser water, heating water piping systems to provide the necessary system connections and disconnections. All water drained from existing systems must be captured and containerized for sampling. Prior to any discharges, the Contractor must submit the Water Test Report(s) to the NAS Oceana Waste Water Manager (through the Contracting Officer) for determination and documentation of disposal method(s). The test report submittal(s) must include an estimate of volume (gallons) and date of scheduled discharge(s). The contractor must provide the disposal of all drained water in accordance with all applicable federal, state and local regulations.

3.6 Refrigerants in the HVAC system to be demolished must be evacuated prior to disposal. Remove air conditioning, refrigeration, and other equipment containing refrigerants without releasing chlorofluorocarbon refrigerants to the atmosphere in accordance with the Clean Air Act Amendment of 1990. Refrigeration, and other equipment containing refrigerants and dispose of in accordance with UFGS 02 41 00 DEMOLITION AND DECONSTRUCTION.

3.7 In the event that hazardous waste is generated or mobilized, the hazardous waste program manager must be contacted for the appropriate guidance. In addition, any movement of soil/fill material outside of project boundaries, meaning both soil brought onsite and soil from the site relocated to other areas, must be coordinated with the hazardous waste program manager to ensure environmental compliance.

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3.8 In the event asbestos containing material (ACM) or presumed asbestos containing material (PACM) is discovered, all work shall be stopped and the contractor shall set up a temporary regulated area around the ACM/PACM and contact the PWD Oceana Asbestos Program Manager.

3.9 Pre-Outage Coordination Meeting:

Apply for outages at least 15 days in advance to the Contracting Officer. As a minimum, the request must include the location of outage, areas being affected, duration of outage and any necessary sketches. Any/all outage requests must be approved by the Contracting Officer prior to starting the work. Once approved, and prior to beginning work on the system requiring shut down, attend a pre-outage coordination meeting with the Contracting Officer to review scope of work and the lock-out/tag-out procedures for worker protection. No work will be performed on energized electrical circuits unless proof is provided that no other means exist.

3.10 Control of Hazardous Energy (Lock-out/Tag-out):

Provide and operate a Hazardous Energy Control Program (HECP) in accordance with EM 385-1-1 Section 12, 29 CFR 1910.333, 29 CFR 1915.89, and paragraph HAZARDOUS ENERGY CONTROL

PROGRAM (HECP).

3.11 Continuity of Fire Protection:

The Contractor must coordinate all work related to the Fire Protection System with the Contracting Officer, Base Fire Department and local installation Alarm Center. During disconnection and demolition work as stated in Paragraph section 7. WORK REQUIREMENTS, there must be no loss of alarm transmitting or receiving capability. If temporary interruption of individual alarm connections will have to occur in order to perform the work, it must be minimized and must be approved by the Contracting Officer and Base Fire Department prior to work being performed. Interruption of alarm or communications functions at the fire alarm watch office is prohibited.

3.12 In general terms, demolition work and the use of word “demolish”, must include the removal and effective management and disposal of existing construction and or structures. Contractor must take care to prevent damage to existing utilities and construction that are not scheduled for demolition. If damage occurs, the Contractor must make repairs, or replacement with new, to the satisfaction of the Contracting Officer and at no cost to the Government. Selling of demolished or salvaged materials and equipment on government properties is prohibited.

3.13 Work Hours: The Contractor’s normal working hours must be between 0700 to 1630, Monday through Friday, excluding Federal Holidays. Advance approval is required for contractor personnel to work outside of normal working hours.

3.14 Passes and Badges: All Contractor employees, including subcontractors, and subcontractors’ employees, suppliers, and suppliers’ employees must be required to comply with the Installation Security Requirements regarding personnel, vehicle, equipment, security passes/badges and access to the jobsite. Nothing in the contract must be construed in any way to limit the authority of the Commanding Officer to prescribe new, or to enforce existing security regulations governing the admission or exclusion of persons and the conduct of persons while aboard the station, including but not limited to, the rights of search of all persons or vehicles aboard the station. All Contractor employees/subcontractors must have current and valid government issued Contractor Base Access Passes and Badges, in order to perform work under this contract.

SCOPE OF WORK 24 March 2023 Page 5 of 18

Responsibility for Escorts: The Contractor must be responsible for coordinating escorts with the Building Activity/Tenant at all times. The Contracting Officer and other NAVFAC personnel “must not” be responsible for the coordination of escorts for Contractor personnel.

For DEVGRU occupied facilities, a formal request for escorts must be submitted to the DEVGRU POC (TBD at the PAK/PRECON Meeting) by NLT COB each Thursday, prior to the week the Contractor requires escorts. Failure of the Contractor to submit escort requests by NLT COB each Thursday must result in possibly having no escorts for the following week, and thus not allowing work during that week!

3.15 The Contractor must provide detour signage for redirection of occupants during the entirety of construction.

3.16 To minimize downtime for the area, construction activities may not start until the Contractor provides confirmation of receipt of all new products and materials necessary to complete the work, prior to start of construction.

4. SAFETY:

SAFETY STATEMENT: The contractor shall comply with the most current edition of the USACE EM-385-1-1, OSHA CFR Part 1926; along with all other federal, state, and local laws and regulations. Where differences occur within, the most stringent shall apply.

5. HAZARDOUS MATERIALS (HAZMAT) DISCLOSURE STATEMENT(S):

HAZMAT STATEMENT: Contractor shall comply with all USEPA and OSHA laws and regulations, along with all other federal, state and local laws and regulations. Where differences occur, the most stringent shall apply.

5.1 For repair, remodeling, or minor construction and demolition, the contractor may be required to work in areas that have, but not limited to, flooring, walls, ceilings, insulation, roofing materials and paints etc., that may contain hazardous materials requiring abatement and/or management according to applicable laws and regulations. If during the performance of the work the contractor encounters hazardous substances not known prior to issuance of this Task Order; the contractor must immediately stop work and inform the Contracting Officer.

SCOPE OF WORK 24 March 2023 Page 6 of 18

6. SUBMITTALS:

6.1 The Contractor must submit the following for government approval, prior to the start of any construction activities:

6.1.1 Manufacturer’s Product Data: Submit manufacturer’s written detailed product data cut sheets, with instructions for installation, adjustment, cleaning and maintenance instructions.

6.1.2 Contractor shall provide documentation in writing that the new units are equivalent (or superior) in every respect. Written documentation shall contain efficiency of new unit, complete serial numbers and model numbers of proposed equipment.

6.1.3 Manufacturer Warranties: Contractor shall submit to the Government all warranties against defects of equipment, material and workmanship.

6.1.4 Accident Prevention Plan (APP):

6.1.5 Activity Hazard Analysis (AHA):

6.1.6 Quality Control Plan:

7. WORK REQUIREMENTS:

The Contractor shall provide supervision, labor, material, and equipment as required to perform the following work. Work shall be done in a manner to provide a complete, usable, and finished end product.

Unless otherwise stated, all materials, components, and equipment procured and installed by the Contractor shall be equivalent (or superior) in every function and feature to what exists.

All materials, components, and equipment shall be installed in strict adherence to manufacturer’s specifications.

7.1 Provide supervision, labor, material and equipment as required to perform the following work and shall be done in a manner to provide a complete, usable and finished end product, to replace dehumidifier (DAHU 16) in room 211 and the condensing unit (ACC 16) located on the roof of building DN-355 at Dam Neck Annex, Virginia Beach, VA.

7.2 The Contractor shall give the Activity 15 day’s prior notice before starting any work, and shall apply for an outage through the contracting officer in accordance with paragraph 3.9 above.

7.3 The Contractor shall secure the electrical power to the existing DAHU and Condensing Unit, utilizing proper OSHA approved Lock out/ Tag out procedures outlined in paragraph 3.10 above.

DAHU 16 is energized by electrical panel P2B, breaker 32, the contractor must field verify prior to commencing work. The roof top condensers (ACC16) electrical wiring must be disconnected.

ACC16 is powered from panel 3A, located in room 348, circuit number 31, the contractor must field verify prior to commencing work.

SCOPE OF WORK 24 March 2023 Page 7 of 18

7.4 The existing equipment drying rack in room 211 must be disassembled and removed by the Contractor and salvaged for reinstallation.

7.5 Evacuate the line set as per requirements and instruction listed in paragraphs 3.5 and 3.6 above.

All refrigerant contained in the unit must be recovered appropriately utilizing approved pressure rated tanks and recovery equipment.

7.6 Disconnect and selectively demolish all piping, electrical wire, conduits and control wires from existing DAHU and Condensing Unit to hook up and install the new units. Maintain existing ductwork and utilities in working order for reconnection associated with new work.

7.7 The existing overhead lights must be removed from their electrical circuit and demolished for access to the ceiling. The electrical circuits must be salvaged for reinstallation.

7.8 The Contractor shall provide and install approximately 14 new 24”x48” lighting fixtures, to be installed using existing lighting electrical circuits.

7.9 Approximately 900 SF of sheet rock ceiling must be demolished within the room, and new ceiling provided that meets the following requirements: Fire Performance ASTM E84, ASTM E1264 Classification Type IV, Form 2, Patter E Fire Class A, Humidity and sag resistant, Mold/Mildew and Bacterial Protection, NRC 0.80, and CAC 35.

7.10 The existing line set shall be disconnected from the DAHU and roof top condenser to allow for removal of the existing dehumidifier. Existing roof penetrations must be reused, no new roof penetrations are permitted.

7.11 Remove necessary insulation from the supply and return duct to allow for the duct to be disconnected from the DAHU. Provide new insulation, duct transitions, and flexible connectors to reattach ductwork to the new DAHU. All ductwork must be completed in accordance with SMACNA standards.

7.12 The Contractor shall provide and install new DAHU and Condensing Unit which is equivalent (or superior) to the existing unit with respect to capacity and features. Contractor shall provide documentation in writing that the new unit is equivalent (or superior) in every respect. Written documentation shall contain complete serial numbers and model numbers of existing and new units.

AHU when installed shall fit above the existing ceiling with free and unobstructed access to all maintenance components. Set roof top condensing unit utilizing proper vibration isolator pads.

7.13 Select AHU size and configuration similar to existing, to fit in available spaces above ceiling and connect to existing ductwork. AHU shall be mounted and connected to existing condensate drain so condensate shall flow freely. AHU when installed shall fit above the existing ceiling with free and unobstructed access to all maintenance components.

7.14 Provide and install new hanger assembly capable of supporting the new AHU. Install the new

AHU to allow for ease of access for maintenance while maintaining air flow parameters. Installation of new equipment shall be in accordance with all applicable codes, regulations and manufacturer’s written instructions.

7.15 Provide and install ductwork, flexible connectors, transitions, air intake register and fittings to the new AHU. All ductwork shall be insulated and sealed air tight using duct sealant for all joints and seams. Replace any duct insulation that was previously removed from the supply and return ducts.

Galvanized ductwork shall conform to ASTM A653 and A653M and coatings shall be in accordance

SCOPE OF WORK 24 March 2023 Page 8 of 18 with ASTM A90. Duct shall conform to the requirements of NEPA 90A, NEPA 90B and in accordance with SMACNA.

7.16 Provide and install new refrigerant line set with insulation, hangers and supports, complete, to meet the manufactures specifications.

7.17 Provide and install new auxiliary drain pan. Auxiliary drain pan shall be equipped with a water detection condensate overflow switch conforming to UL 508 that will shut off the equipment prior to overflowing the drain pan.

7.18 Reconnect electrical and piping to new AHU and Condensing Unit. Provide and install new thermostat and thermostat wire, humidistat, any conduit, piping, valves, fittings, condensate pipe and condensate trap for a complete and usable HVAC system.

7.19 The Contractor shall demolish the existing Condensing Unit disconnect. Provide and install new exterior fusible stainless steel disconnect switch for the condenser. Provide and install liquid tight electrical whip for Condensing Unit. All electrical work shall be in compliance with the most current NEC (National Electrical Code).

7.20 Provide and install new pipe supports for the new condenser.

7.21 Provide and install new insulation with aluminum jacket to all piping as required that meets or exceeds the requirements of ASHRAE 90.1

7.22 Patch roof at points of refrigerant line set penetration. All roof repairs shall be accomplished by a Certified Manufacturer Installer. Roof repairs shall be performed in a manner approved by the roofing manufacturer, so as not to void the existing roof warranties.

7.23 Perform manufactures start up procedures on new system and check for proper operation.

7.24 Testing Adjusting and Balancing (TAB): All HVAC water and air systems shall be TAB’ d in accordance with NEBB and AABC standards.

7.25 All information here-in is for reference only. The Contractor must FIELD VERIFY all existing conditions, prior to fabrication and placing orders for any new items/equipment within this

SOW.

7.26 The Contractor must dispose of all existing demolished/removed materials off base and will completely clean up job site after work is performed. Maintain daily site clean-up at the end of every workday during the entirety of the construction period, to prevent any hazard potential. Disposal must be in accordance with all existing Local, State, Federal and NAVFAC MIDLANT EV rules and regulations.

7.27 The Contractor shall ensure all new equipment information and equipment inventory forms are delivered to the PWD Oceana.

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8. ATTACHMENTS (following the Scope of Work):

8.1 Location Map.

DN-355

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8.2 Photographs.

Drying Rack and Ceiling Access

DN-355

ACC 16

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DAHU 16

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ACC 16 Roof Top Condenser

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ACC 16 Roof Top Condenser Plate Data

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8.3 Floor Plan

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8.4 Equipment Inventory Form.

EQUIPMENT INVENTORY FORM:

The Contractor shall provide an Equipment Inventory Form for all equipment that is demolished / removed or provided as new:

EQUIPMENT INVENTORY FORM

BUILDING: __________________________________________________________

LOCATION: __________________________________________________________

DESCRIPTION: _______________________________________________________

MANUFACTURER: ____________________________________________________

MODEL NUMBER: ____________________________________________________

SERIAL NUMBER: ____________________________________________________

CHECK ONE:

ADD TO INVENTORY: ________ REMOVE FROM INVENTORY: ________

DATE REQUESTED: ___________________________________________________

REQUESTOR: ________________________________________________________

SIGNATURE: ________________________________________________________

**End of SCOPE OF WORK**