Attachment 1 - Statement of Work.pdf

DEPARTMENT OF THE ARMY

US ARMY INSTALLATION MANAGEMENT COMMAND

US ARMY GARRISON DPW

NATICK SOLDIERS SYSTEMS CENTER

10 GENERAL GREENE AVENUE

NATICK MA 01760

STATEMENT OF WORK (SOW)

Directorate of Public Works (DPW)

Building 45 Repair Renovation

1. General:

1.1. All work is to be performed for building 45 Department of Public Work, located at the US Army Soldier Systems Center (NSSC), General Greene Avenue, Natick, MA, 01760.

1.2. The Contractor shall provide all labor, materials and equipment necessary to perform all work, purchase and installation of outlined in this SOW and accompanying documents. Submit construction schedule for approval prior to beginning any work.

1.3. The Contractor shall be responsible for performing all work as outlined in this Statement of Work (SOW) and all associated contract documents including Project drawings/specifications, and accompanying documents, for the bid price submitted. The Contractor is responsible for reading entire SOW and accompanying documents included in this contract for a thorough understanding and comprehension of all content and requirements. The Contractor shall carefully review the field conditions prior to bidding and performing any work.

1.4. Period of performance for all work shall be 220 (two-hundred and twenty days) working days from the date the Notice to Proceed (NTP) is issued. Failure to complete the project by the stated completion date, when delay is not attributable to the Government will lead to a negative performance evaluation.

1.5. The primary technical services shall be performed by or under the supervision of individuals licensed to practice in the state where the firm/company is located and commands the necessary expertise, in terms of knowledge and experience, to perform and undertake the general task identified in this SOW.

1. Project Descriptions:

1.1. The purpose of this project is to execute a Design-Build contract to advance the provided 35% conceptual design to 100% Construction Documents (CDs) and perform a comprehensive, turn-key interior renovation of approximately 7,000 SF of federal administrative space in Bldg. 45 at USAG SSC, Natick

1.2. As a Design-Build project, the Contractor serves as the single point of responsibility for both design and construction. The work includes hazardous materials abatement, complete MEP infrastructure upgrades (including a fixed-budget HVAC replacement and fire protection), acoustic privacy enhancements, architectural finishes, and compliant furniture integration.

2. Design Services Requirements

2.1. The Design-Build Contractor (DBC) shall provide all architectural and engineering services necessary to complete the design. The contractor will deliver a final set of drawings (2) 11x17 hard copies, CAD drawings, and PDF drawings, including warranties.

2.1.1. Design Advancement: Advance the Government-provided 35% conceptual design through 65%, 95%, and 100% Issued-for-Construction (IFC) phases.

2.1.2. Professional Registration: All drawings and specifications (Architectural, Mechanical, Electrical, Fire Protection, etc.) must be signed and sealed by a Registered Architect (RA) or Professional Engineer (PE) licensed in the Commonwealth of Massachusetts.

2.1.3. Target-Value Design (HVAC): The DBC must utilize Value Engineering (VE) during the design phase to ensure the comprehensive HVAC system replacement adheres to meeting federal energy efficiency mandates

2.1.4. Early Work Packages: To fast-track the schedule, the DBC is encouraged to submit “Early Work Packages” (e.g., Asbestos Abatement and Soft Demolition) for Government review and approval prior to the completion of the 100% architectural and MEP design.

US ARMY GARRISON DPW

NATICK SOLDIERS SYSTEMS CENTER

10 GENERAL GREENE AVENUE

3. Submittals & Deliverables

3.1. The Design-Build Contractor shall submit the following for Government approval:

3.2. Design Packages: 65%, 95%, and 100% Stamped Construction Documents.

3.3. Early Work Packages: Asbestos Abatement Plan & Demolition Plan.

3.4. Project Schedule: Integrated Design & Construction CPM Schedule.

3.5. Shop Drawings & Calcs: HVAC Mechanical Shop Drawings, TAB Report, Fire Sprinkler Shop Drawings, and NFPA 13 Hydraulic Calcs.

3.6. Product Data & Samples: Finishes, paint, carpet, Acoustic Grid Layout, and Sound Masking Tuning Report

4. Architecture

4.1. Demo/disposal the existing windows on the south and west side of the Bldg. 45, patch the openings above the window with CMU to match existing. Partially demo the existing exterior vertical CMU enclosure parallel to the existing windows to allow the new window size 4’W x 6’H installation, replace/upgrade the windows installing energy-efficient Low-E, noise reduction, durable windows to improve performance, aesthetics, durability, safety and operational efficiency, with double panel Dark Bronze aluminum to match existing Bldg. 3 on the NSSC (DPW architect approval required before purchase), Install manual roller shade with chain operator, light filtering fabric shall be PVC coated and the light blocking shade shall be Fiberglass with a vinyl backing. After resizing the window’s opening and new window installation, repair patch and paint.

4.1.1. The contractor shall remove all the non-active or active steamers including the pipes and all the elements attached to the obsolete steamers, will cap the pipes (if necessary), will disposal all the equipment removed from the project, the contractor will remove/re-install all the cabinets from different locations i.e. DPW printer room, env. Storage, corridors, etc. will coordinate with DPW POC.

4.1.2. Walls: Remove/disposal interior existing walls including the Transite asbestos walls, the interior walls shall de painted SW dove color and base board/wall base shall be 4” charcoal color.

4.1.3. Interior doors: install new sidelights doors, with dark bronze color frame, including the 2” hollow metal frame, the doors shall meet fire rating requirements. Remove existing room signage and install new signs following UFC guidelines for all sign types.

4.1.4. The conference room will have three insulated picture window style panels, distributed equally size 1’6” Width x 5’Height, with dark bronze metal frame.

Install an implosion double full-size frosted glass door with 4-1/16” Height brushed stainless steel square door rail without lock, hardware/headers/ to match color, the electrical will include the required outlets/switches/voltage to accommodate a projector/ sensor light, 2’x2’ carpet tiles. 4” charcoal base board.

4.1.5. Housing room 104: Install implos ion full size glass 10’height (approx imately)x3’wid th (wall facing the main Corridor) as shown in the elevation plan A-200 with 3’H frosted pattern horizontal band to partially block interior view. Floor: 24”x24” Network 1842-2851 data base KINETEX textile composite flooring. One wall shall accent color SW mid shinny TBD

4.1.6. Remove the door from the existing env. Storage and re-install it in the new housing office/Storage.

4.1.7. Breakroom: Install an implosion full-size single glass door with 6” H eight brushed stainless steel square door rail without lock, hardware/headers/handles/floor mounted closers to match color, install three glass/windows 2’ Width x 5’height double panel, dark bronze metal frame, the windows shall be spaced equally.

4.1.8. The contractor is responsible for removing and disposing existing FFE, including cubicles, desks, chairs (verify w/ DPW PM).

4.1.9. Remove/dispose/replace the existing ceiling tiles and metal grids, install 2’x 2’ white ceiling tiles and white tee suspension system.

4.1.10. Remove/disposal the existing carpet. Install LVT 20 mil wear layer minimum, size 18”x36”, 10 yrs warranty minimum for breakroom, corridors, cubicles floor, storage areas, printing area, kitchenette. Offices, and conference room: Install 2’x 2’ carpet tiles fiber type, high traffic resistance with PVC composite backing for flexibility: INTRINSIC 7096/2720 encore nylon NSF/ANSI certified, or better for the office, conference room. and cubicles area (see floor plan). DPW Architect to Approve colors and material

4.1.11. Demo existing Transite asbestos walls and replace them with new metal structure/gypsum board walls, shall

US ARMY GARRISON DPW

NATICK SOLDIERS SYSTEMS CENTER

10 GENERAL GREENE AVENUE

follow UFC requirements (see floor plan) the USACE asbestos test is attached to the contract; however, the contractor is allowed to obtain an independent test if desired.

4.1.12. The contractor shall submit a 24” x 12” sample board to specify the colors and material to be used/applied in the project.

4.1.13. Building Exterior painting: Prepare/repair/paint the exterior walls to match DoD Army requirements Service branch-specific, Ref; recommended Sherwin Williams or equal color Sandstone. See reference only, Englert Sandstone R51 E9 SRI59. Apply Buy American Act.

4.1.14. Interior painting: SW Dove color. Accent color will be applied i.e. Housing office, breakroom, shall coordinate with DPW Architect, approval is required. Kitchenette: remove/relocate and renovate (see floor plan).

4.1.15. Furniture: Remove/dispose existing furniture/cubicles/whips.

5. Electrical

5.1. Remove and dispose of all non-active power lines, conduits, lighting and devices including any conduit, cable or devices not meeting Federal UFC requirements or State and Local NFPA 70 Electrical codes.

Furnish and install all new electrical panels, circuit breakers, conduit paths, tele-poles, wiring, devices and lighting to meet the renovated office area layout plan.

5.2. The renovation shall require the relocation of existing or replacement of outdated motion / sound activated lighting controls and incorporate new energy conservation devices required to effectively meet the renovated office layout plan.

5.3. Install all new white devices (outlets, switches, thermos), wall or ceiling motion / sound energy conservation lighting control devices and combination emergency exit light units required for the renovated office area layout plan.

5.4. Existing exposed conduit paths, outlets/switches and conduits surface mounted on gypsum board / block walls shall be reinstalled inside the partition walls where applicable flush with the wall. All cubicle wiring junction box locations shall consist of the required 20 Amp 120 Volt circuits determined by the cubicle furniture plan.

5.5. All existing unused devices, boxes or anything installed not required shall be totally removed back to its source, nothing will be abandoned in place. Including but not limited to, low voltage, line voltage outlets above 4’ H and close to the ceiling tiles or items no longer in use.

5.6. The certified Electrical Engineer must design and stamp the submitted shop drawings for NSSC DPW, DES and Safety office approval prior to any installation.

6. Communication

6.1. Remove and dispose of all existing low voltage communication wiring and devices back to the communications room rack or source including telephone, computer and any other existing low voltage system in the renovated office area.

6.2. Communication: Install new CAT cables and NIPR where required, i.e. new conference room, new printer and plotter location.

6.3. Re-install all new CAT6E home runs shall meet the renovated office area layout plan and comply with the current UFC specifications. All wiring installed above ceilings shall be grouped away from any other conduit, duct work or similar items to allow proper J hook hanger spacing and future pathway availability.

Individual cubicle or office device locations shall be flush to the wall where applicable or in approved raceways on any surface mounted locations.

6.4. The certified Telecommunication Engineer must design and stamp the submitted shop drawings for NSSC DPW, DES and Safety office approval prior to any installation.

7. Fire Protection

7.1. Install a new, fully compliant wet-pipe automatic fire sprinkler system throughout the 7,000 SF area.

7.2. Tie into the building’s main fire service line based on approved hydraulic calculations.

7.3. Add / relocate smoke detection and AV devices required in the current version UFC and NFPA 72 to meet the renovated office area layout plan.

7.4. Consult the HVAC Engineer requirements to determine the need for any duct smoke detectors. No

US ARMY GARRISON DPW

NATICK SOLDIERS SYSTEMS CENTER

10 GENERAL GREENE AVENUE

overlapping / dual coverage will be allowed.

7.5. The certified Fire Protection Engineer must design and stamp the submitted shop drawings for NSSC DPW, DES and Safety office approval prior to any installation.

8. Mechanical:

8.1. The contractor shall remove the perimeter hydronic loop

8.2. The Contractor shall remove all electrical connections to the remaining wall convectors located in the work site. The circuit shall be secured at the electrical panel, by removing the wires from the breakers. The electrical feeds are to be removed in their entirety, conduits, junction boxes and fasteners.

8.3. The contractor shall remove the hydronic piping that feeds the wall convectors and baseboard fin heaters.

The main loop that circles the perimeter shall be removed. This removal will require the use of a certified and licensed asbestos abatement and removal company. The removal will follow all state and federal laws. The contractors’ plan shall be reviewed and approved by the NSSC environmental department director. Once the removal is completed and final air quality test has been provided, the work will be allowed to continue.

8.4. The main loop will be required to be secure outside the designated office space. The supply will be connected to the return with a globe valve. This will ensure that the small number of hydronic loops are still being utilized elsewhere in building with continue to operate as it should. The globe valve will set to ensure proper pressure in the supply.

8.5. The contractor shall remove the single zone from the director’s office. This will separate the RTU (roof top unit) that provides environmental controls to an interior space that will operate correctly. Interior and exterior environmental control should not be mixed

8.6. The contractor shall secure the operation of the current hydro air unit. This unit shall be locked out electrically and the supply water to and from the unit shall be secured. The contractor shall perform demolition to existing HVAC duct system to make way for new duct distribution system.

8.7. The contractor shall remove all supplies and return ceiling diffusers from the existing ceiling grid.

8.8. The contractor shall remove all the existing flexible duct from the main supply and return trunks.

8.9. The contractor shall remove the control wall sensor and its wiring to the unit.

8.10. The contractor shall remove the main duct trunks (supply and returns) from the ceiling. This removal includes all hangers and fasteners associated with the main trunks.

8.11. The contractor shall cap and seal the wall penetrations from the existing unit's duct work, which should be capped outside the office space

8.12. The contractor shall install new Carrier 20-ton RTU to serve the perimeter office space of DPW, the contractor shall be a Carrier Certified. The center spaces will be served by existing systems which will require some modifications to these systems. The contractor shall be required to utilize all parts and accessories compatible with NSSC's BACnet Carrier Ivu system. The contractor shall utilize a Carrier certified controls expert to integrate the new and modified controls to the NSSC's Ivu.

8.13. The contractor shall rework the spaces 127, 128, 129, 133, 132 and 134 duct systems (supplies and returns) to connect to the existing Carrier roof top. Spaces 129 and 133 will not have any return air utilized from this space due to the environmental conditions. The contractor shall ensure that space 129 will remain in slight negative pressure to ensure proper environment. The contractor should provide and connect all space sensors to the correct units.

8.14. The contractor shall rework space 130 to be connected to the hydro-split system that exists. This space would require more supply and returns to be added. The contractor shall ensure that this space also remains in slight negative pressure. The return volume larger (20%) than the supply. The contractor should provide and connect all space sensors to the correct units.

8.15. The contractor shall provide individual zone control for each of the perimeter office spaces 103, 104, 105, 106, 107, 111 and 115. The contractor shall ensure each branch has volume dampers installed. The contractor shall have the duct system balanced upon commissioning. The duct system shall conform with the ASHRE standard >5% loss. The duct system shall utilize bypass dampers to maintain adequate duct pressure to ensure proper changes of air. The contractor shall ensure the RTUs economizer is utilized to ensure the proper refreshing of the environmental air. The contractor shall ensure the RTU shall operate on the ASHRE 90.1 rule as one of the programing conditions along with temperature limitations and

US ARMY GARRISON DPW

NATICK SOLDIERS SYSTEMS CENTER

10 GENERAL GREENE AVENUE

NATICK MA 01760

scheduling which shall all be programmed by the certified Carrier control expert.

8.16. The contractor shall install the RTU to manufacture specifications. The roof penetrations shall all be watertight. The contractor shall ensure the roof and machine curbing are sealed. The contractor shall install all the utilities to the RTU following the manufacture's requirements following local Massachusetts applicable codes. The contractor shall add to the lighting protection from existing to the RTU. The RTU series will be chosen to meet or exceed the life cycle of 15 years. The contractor shall ensure there is a disconnect on the RTU, if the disconnect is mounted to unit, the contractor shall ensure that there is no damage to the refrigeration, or any warning and or Model number tags are covered. The contractor shall ensure that the unit has a convenience outlet (115v).

8.17. The contractor shall ensure the proper duct smoke and fire dampers are installed and communicate with the building fire alarm systems.

END OF SOW - SEE ATTACHMENTS