Attach 00 SOW for Somerville Office - HVAc.pdf

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May 29, 2021

STATEMENT OF WORK

Construction

1.0 CONTRACT PROJECT:

a. Project Number:

b. Asset Number: 620220B992

c. Project Title: Office and HVAC Renovation at Somerville Pecan Station for the USDA, ARS, Southern

Plains Agricultural Research Center, College Station, Texas.

2.0 PROJECT CONTACT PERSONS:

a. ADMINISTRATIVE CONTRACTING OFFICER (ACO):

Toinette Aranda 970-492-7016 toinette.aranda@usda.gov

b. RESEARCH PROGRAM REPRESENTATIVES (RPR):

Dr. G. Wayne Ivie

USDA, ARS, PA

Southern Plains Agricultural Research Center 2881 F&B Road College Station, Texas 77845

Phone: 979) 260-9372 FAX: (979) 260-9377

c. Location Administrative Officer

Rhonda Korger

USDA, ARS, PA

Southern Plains Agricultural Research Center 2881 F&B Road College Station, Texas 77845 Phone: (979) 260-9372 FAX: (979) 260-9377

d. FACILITY MANAGER:

Mark Buxkemper (LSM, COR)

USDA, ARS, PA

2881 F&B Road

Phone: (979) 260-9262 FAX: (979) 260-9377

e. ENGINEERING PROJECT MANAGER

Brian Dean

USDA, ARS, PA

Plains Area Office 2150 Centre Ave. Bldg. D, Suite 330 Fort Collins, CO 80526 Phone: (970) 492-7026

f. REAL PROPERTY OFFICER mailto:toinette.aranda@usda.gov

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Lisa Baete

USDA, ARS, PA

Plains Area Office 2150 Centre Ave. Bldg. D, Suite 300 Fort Collins, CO 80526 Phone: (970) 492-7071

g. SAFETY OFFICER Dwayne Cordray

USDA, ARS, PA

Plains Area Office 2775 F&B Road

Phone: 979) 260-9480

3.0 SCOPE OF SERVICES:

The Contractor shall provide all professional services necessary for the accomplishment of the contract project and such required services shall be in accordance with requirements as described herein.

a. The Contractor shall provide Services for the following tasks marked by an “X”:

[X] Cost proposal to Convert Office spaces and replace HVAC system at Somerville, TX to provide an energy efficient system.

4.0 PROJECT REQUIREMENTS:

a. The Contractor shall install interior walls to divide offices, upgrade lights to LED panels, replace restroom plumbing fixtures and replace the existing HVAC system for Building 1. The project will result in additional office space and improvement of the building’s climate control system and improve the energy efficient of the building. The project is located at the Southern Plains Agricultural Research Center, Pecan Site at 10200 FM50 Somerville, Texas.

b. The Contractor’s proposal shall adhere to the criteria stated within these project requirements, drawings, and specifications. All construction shall comply with applicable federal, state, and local code requirements as well as current industry standards, (ie., UBC, UPC, NFPA, UL, ASTM, ACI, NEC, NEMA, etc.) and health and safety codes, in effect at the time of contract award.

c. A rough estimate of the building square footage involved is 2000 sqft; however, the Contractor is responsible for taking their own measurements.

d. The Contractor is responsible for all conditions that would be visible during a normal site visit by a qualified contractor.

e. Davis Bacon Wage Rates apply to all construction contracts in excess of $2,000. Employee payroll logs for the project will be required to verify wage rates are being adhered to.

f. Projects in excess of $35,000 will require Payment and Performance bonds. Obtaining and the cost of these bonds is the responsibility of the Contractor.

g. Contractor is required to be registered in the Government’s System Award Management (SAM) in order for bid to be accepted.

h. Contractor must register in Government’s Invoice Payment Platform (IPP) and submit invoice electronically for payment.

4.1 Base bid:

a. The project will replace a portion of the existing HVAC system for the Main Building, provide additional office space by dividing office, replace lighting fixture with LED panels, modifying the

Office and HVAC Renovation Main Bldg Somerville Pecan Station Page 3 of 8 ceiling grid to 2 x 2 panels, and replacing plumbing fixtures at the Somerville, TX Pecan site for the Southern Plains Agricultural Research Center.

b. Office Renovation\conversion. Work will occur in Offices 1, 2, 3, Library, restrooms, mechanical room, and hallway.

c. The Contractor will replace the lights in the hallway and modify the ceiling grid for 2 x 2 tiles.

d. The Contractor will construct a new wall to down the center to divide Office 1 and 2 into two separate office for each space and in Office 3 construct two walls to make another office inside.

1. Metal studs with each stud screwed into the base and top plate on each side.

2. 5/8” sheetrock to installed on each side.

3. Wall to extend a minimum of 6” above existing ceiling height (8’).

4. New all to be supported to prevent lateral movement.

5. New metal frame and door (18 gauge) to be installed in location shown and existing doors and frame to be removed and walls patched.

6. New wall will be taped, floated and textured. Entire office will be painted with high quality commercial paint. To include painting of door frames and doors.

7. Install new rubber base for new wall to match existing.

8. Ceiling tile\grid to be modified to accommodate new wall.

9. Ceiling tile\grid in offices, library, and hallway to be modified to accommodate 2 x 2 ceiling tiles. Existing ceiling tile can be cut and reused if in good condition and not stained.

10. Electrical and Data box will be installed in each wall with each served by ¾ conduit.

e. LED light replacement:

1. The Contractor will remove the existing fluorescent lamps and fixtures from the identified areas and replace with LED flat panels.

2. The LED Panel will be Topaz; F-L22/40w/840/D/he; 4000K and are provided by the

Government.

3. The Contractor will install a total of 34 LED flat panels and install in locations determine by the Government. Locations are listed below:

i. Office 1: 4 lights

ii. Office 2: 4 lights

iii. Office 3: 5 lights

iv. Library: 4 Lights

v. Hallway: 5 lights

vi. Herbarium: 4 lights

vii. Nut Collection Room: 6 lights

viii. Rest rooms; 1 each

ix. Note: if more lights are needed the Government will provide them.

4. The Contractor will typically remove 1 existing fixture and replace with 1 LED flat panel in each area.

5. The Contractor will remove the electrical whip back to the nearest junction box for any fixture that is eliminated and not replaced.

6. The Contractor will ensure the ceiling grid is properly supported to accommodate the weight of the LED panels. The Contractor will correct, as necessary.

7. The Contractor will place the new LED panels to provide a reasonable uniform lighting in the area of 50-60 foot candles.

8. The Contractor will connect the new lights with quick-connect devices to allow easy future replacement.

9. The Contractor will cover the work area below to extent possible and clean up area upon completion of work.

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10. The Contractor will provide new switch as necessary to allow the lights in each space to be controlled independently. The Contractor will eliminate 3-way switches when the switches are no longer are useful.

f. Electrical

1. Divide circuits for lighting to provide separate control for each office. Install new switches where necessary and eliminate 3-ways when no longer required.

2. Provide electrical outlets as shown in the new walls as shown.

3. All electrical wiring will be in conduit. Armor flex cabling is acceptable in areas where conduit cannot be installed.

4. All wiring to be copper 12 awg minimum.

5. All circuits to have separate neutral and ground wires.

6. Modify electrical as necessary for replacement of the A/C system.

7. Provide data box with conduit to ceiling for future Ethernet cable (Ethernet cable not to be installed at this time.)

g. The Contractor will install new doors and frames in the newly created offices.

1. Contractor will check for any electrical in the way of the new door and relocate, as necessary.

2. Metal frames and doors 18 gauge with factory primer.

3. Paint doors to match existing.

4. Patch vinyl tile floor, as necessary.

5. Commercial grade full mortise hinges and lockset with interchangeable cores (cores will be provided by the Government.

i. Handles, pull, latches, locks and other operating devices on accessible doors shall have a shape that easy to grasp with one hand and does not require tight grasping, tight pinching, or twisting of the wrist to operate the lever-operated mechanism. Push-type mechanism and U-shaped handles are acceptable designs. Hardware required for accessible doors passage shall be mounted no higher than 48” above the finished floor.

ii. The maximum force required for pushing or pulling open an interior hinged door shall be 5 pounds.

iii. Provide wall bumpers for each door installed.

h. Counter-Cabinet

1. The Contractor will provide and install a new floor cabinet with countertop and double bowl stainless stee slink in the library. The Contractor will also provide and install an upper cabinet.

2. The cabinet will be 8 to 9 feet long and at least 30” deep. The cabinet will extend from the hallway wall to the center of the mechanical room door so that the sink drain line can easily be routed to the restroom drain line.

3. The cabinet will have open cabinet beneath the sink with other cabinet sections to have two top drawers with cabinet space beneath. Cabinet to be made of solid wood and stained to match the room.

4. The upper cabinet will match the length of the bottom cabinets with a depth of approximately 16”and be approximately 36” tall. All cabinets will have doors.

5. The Contractor will provide two GCFI outlets 12” above the countertop surface.

6. The countertop will be solid Formica or other similar quality product. Contractor will provide color selection for the Government.

7. The sink will be surface mounted. Made of 18-gauge stainless steel with double bowls. Each bowl to be approximately 12 x 12 x 12. Faucet will be commercial grade Chicago faucet with ADA compliant paddle handles.

i. Painting

1. The Contractor will paint all offices, restrooms and hallway.

2. Painting will include all doors ang frame in the work area.

3. Paint will be high-commercial grade product.

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4. Colors and paint to match existing.

j. Plumbing

1. The Contractor will replace the sinks and commodes in both restrooms.

2. All plumbing equipment will be meet water efficiency standards.

3. The contractor will replace all plumbing connection lines from the isolation valve to the plumbing fixture with flexible stainless-steel hoses.

4. All equipment to be ADA compliant.

5. Replace all Restroom ADA grab bars with like material, size and quality.

6. The Contractor will install hot and cold water lines with a drain line for the new sink in the

Library area. Route drain to restroom sink drain.

k. HVAC replacement.

1. The Contractor will remove the two split system inside and outside units.

2. The Contractor will modify the ductwork to provide supply and exhaust ductwork for each space. Eliminate the common return to both units. Each unit will have separate ducted returns. Duct board or insulated metal ductwork is acceptable for the supply or return air plenum.

3. The Contractor may re-use the existing supply/return ductwork provided it is sized correctly.

Contractor may replace all supply/return ductwork to ensure it is sized properly to maintain duct static. Installation of dampers is acceptable to achieve proper duct static.

4. Any new duct fabrication, transition or plenum may be constructed of ductboard (minimum 1½”) or insulated metal ductwork sealed with silicone, foil tape and duct sealant.

5. Anywhere the use of flexible duct occurs it will be of minimum R-8 value and supported at maximum 4’ intervals maintaining a maximum of ½” sag between supports.

6. The existing supply and return ductwork may be re-purposed, but any un-used ductwork will be removed.

7. New fabrication of return plenum shall be of adequate structure to support installation of new equipment or an additional structural support fabricated for this purpose.

8. Return Air plenum shall be sized appropriately for the unit with consideration taken for any additional friction loss added for length of duct. At minimum a cross section area shall be 144 square inches per ton. (ex. 4-ton=576 sq. in. or 24” x 24”).

9. Additionally, return air branches shall be sized appropriately for the unit with consideration taken for any additional friction loss added for length of duct. At minimum a cross section area shall be 144 square inches/# of branches (ex. 4-ton=576 sq. in./2 branches=288 sq. in.

each or 16”x18” or 20” round duct)

l. Return air grilles shall be installed at a minimum of 1 per room and the hallway. Each branch will be sized according to the supply air for the space and be ducted to the trunk line/plenum of the corresponding AHU.

m. HVAC units will include at a minimum:

1. Government will provide 2 Rheem units

i. RH1T3617STANJA (Attachment 2).

ii. RXBH-1724A07J \(Heat kit with 7KW breaker).

iii. RP1536AJ1NA (Attachment 3)

iv. Contractor is responsible for all other associated components.

2. Units will be heat pump with emergency heat.

3. Condenser and air handler will have a means to readily disconnect electrical power to the devices.

4. Units to be set in mechanical space to ensure all required clearances are met and are accessible to maintain.

5. Units to have independent returns to each unit.

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6. New Line set sized to meet the unit. Insulated as necessary and covered with line set cover on exterior of the building. (Existing line set cannot be re-used.)

7. Each AHU shall have a float switch to disable unit in case of drain obstruction.

8. If required a condensate pump is permittable. It shall be terminated in a manner to satisfy all codes. Float shall be wired such that unit is disabled in the event of pump failure.

Additionally, a secondary containment shall be provided for the pump.

9. Each unit will be set on a filter base sized for the unit and able to accept a 2” filter of common size (ex 20x25x2)

n. Exterior condensing units to be set on above ground rack.

1. Mounted 24” above ground.

2. Constructed of angle iron and square tubing with center supports (painted black)

3. Post set in concrete a minimum of 12” deep.

4. Composite decking used for platform. Deck 12” larger on each side than the condenser.

Condenser to be centered on the deck. Note: both units can be set on same rack with appropriate spacing between the two units.

5. Condensing unit to be anchored to deck with 4 bolted hooks.

6.

o. Provide new programmable thermostats for each unit. Thermostats to be placed in hallway for unit 1 and in the nut storage room for unit 2.

p. Provide electric circuits as required to support the new equipment.

q. See Attachment 1 for Figures 1, 2, 3, 4, and 5 for reference.

r. The Contractor will strip and wax floor in space where work was performed at the end of the project.

s. The Contractor is responsible for visiting the site prior to submitting a bid to observe existing conditions. No compensation will be provided for conditions that would be visible during an on-site visit for persons experienced performing this type of work.

t. Pending being cost effective; the Contractor will use biobased products meeting the minimum standard for content as defined in ASTM D6866 (Biobased Content Testing). The Contractor must comply with Section 9002 of the Farm Security and Rural Investment Act of 2002 (FSRIA), Executive Order (EO) 13423, “Strengthening Federal Environmental, Energy, and Transportation Management,” and the Federal Acquisition Regulation to provide biobased products. The Contractor shall utilize products and material made from biobased materials (e.g., insulating foam, composite panels, and concrete and asphalt release fluids) to the maximum extent possible without jeopardizing the intended end use or detracting from the overall quality delivered to the end user. All supplies and materials shall be of a type and quality that conform to applicable Federal specifications and standards. Cost is acceptable reason for not using biobased products.

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All supplies and materials to be used in the performance of work described herein are subject to the approval of the Contracting Officer Representative (COR).

4.2 Add\alternate bid: None.

4.3 Government Furnished Equipment\Services

a. The Government will provide a reasonable amount of water and electricity.

b. The Government will provide the LED light panels.

c. The Government will provide the 2 air handlers, condensers and heat strips.

5.0 GENERAL REQUIREMENTS:

5.1 Permits: Where governing regulations and imposed codes and standards require notices, permits, licenses, inspections, tests, and similar items or actions in order to lawfully proceed with the required work, the Contractor shall obtain items and take those actions in accordance with the regulations of the governing authority. The costs of such permits, licenses, inspections, etc., are the obligation of the Contractor.

5.2 Installation: It shall be the responsibility of the Contractor to complete work in accordance with the manufacturer’s recommendations and Industry Standards. Additional procedures and materials may be required than is indicated herein. If any item specified herein conflicts with the applicable codes and recommendations, the Contractor shall bring it to the attention of the Contracting Officer for immediate resolution.

5.3 Submittals: Provide manufacturer’s descriptive literature/shop drawings for all materials to the COR for review. The descriptive literature shall be annotated/highlighted to show its conformance with contract requirements. Submittals are required for doors and hardware, cabinet\counter and each submittal will be stamped by the general contractor prior to submission to the Government. Any work\material completed before approval of a submittal is at the contractor’s own risk.

5.4 Quality Control: The work performed under this contract shall be subject to continuous audit by the COR. Quality control is the exclusive responsibility of the Contractor with all required manufacturer’s inspection requirements being performed.

5.5 Protection of Work and Property/Safety Requirements:

a. The Contractor shall protect the work, the site, and all existing property and structures within the limits of the construction activities or that may be affected thereby until acceptance of the work.

Any damage to property shall be repaired at the Contractor’s expense, to pre-damaged condition to the satisfaction of the COR\LSM.

b. Safety and health matters, as they relate to the work, are the exclusive responsibility of the Contractor. The Contractor shall furnish, erect, and maintain barricades, warning lights, signs, guards, or take other precautions as may be required by law or local authorities of the protection and security.

c. Contractor is responsible for verifying location of any underground utility and is responsible for any damaged caused to such utilities.

d. Contractor shall furnish a Site-Specific Safety Plan (SSSP) or Accident Prevention Plan (APP) 10 days after contract award. SSSP\APP shall be approved by the Government before construction work commences.

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5.6 Temporary Facilities:

a. Temporary utilities (water and electricity) may be furnished to the Contractor by the Government, if so requested. The Contractor shall maintain and protect all such utilities during the course of construction and shall repair or replace any items damaged through its own negligence.

b. Should the Contractor require any power or utility shutdowns during construction, the Contractor shall obtain approval for such shutdown from the COR three working days prior to the need.

c. No restrooms facilities will be available. The Contractor is responsible for providing their own restrooms.

5.7 Materials and Equipment:

a. The material and equipment to be furnished under these contract documents shall be the standard products of manufacturers regularly engaged in the production of such materials and equipment and shall be the manufacturer’s latest standard design.

b. All materials and equipment to be incorporated in the work shall be handled and stored by the manufacturer, fabricator, supplier and\or contractor before during and after shipment in a manner to prevent warping, twisting, breaking, chipping, rusting and any injury, theft or damage of any kind to the materials and equipment. All materials and equipment furnished by the Contractor shall be subject to inspection and approval by the CO/COR.

5.8 Cleanup: The construction site shall be kept clean and free of debris at all times. Upon completion of the project, and prior to final inspection, the Contractor shall remove from the premises all unused material, trash, and debris resulting fro the work to the satisfaction of the COR.

5.9 Warranty:

a. Provide one-year general contractor’s warranty for all work.

5.10 Final Payment/Contract Closeout: The following submittals are REQUIRED PRIOR TO FINAL PAYMENT:

a. General and Subcontractors one (1) year warranty on work.

b. All warranties from manufacturers covering equipment\material.

c. O&M manuals for all equipment.

d. As-built drawings.

e. Release of liens.

f. Payroll sheets

g. Any other documents as required by the contract.

6.0 PROJECT SCHEDULE: The contract time for this project is 120 calendar days from the Contractor’s Notice to Proceed.