Scope_of_Work.pdf

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SCOPE OF WORK

Install A 12’X12’ and 4’X9’concrete

Pads for nitrogen tank

PW-5610

General:

This is for the site excavation and installation of concrete pads for a nitrogen tank on the east side of Building A50 at the Naval Research Laboratory in Washington, DC.

Scope of Work:

1. The Contractor shall provide all necessary labor, equipment, parts and supplies to:

Provide shop fabrication drawings for approval to engineering Bldg. 57 with sub-base, concrete, reinforcement details, etc. prior to fabrication and installation.

See attached drawing for detailed specs.

Contractor shall be responsible for any damage to existing below grade utilities.

Determine exact location of all existing underground utilities

Saw cut and remove existing asphalt were new concrete pads and bollards to be installed

Excavate to required depth

Compact the exposed sub-base to 95% Proctor per ASTM D-1557.

Lay stone base in max. 9inch lifts, compacting each lift to 75% per ASTM D-2047.

Use 6” base for flat pad. Stone to be Crusher run, 3/8” nominal, 5%max.passing #4 sieve, 1% max., passing #200 sieve.

Set forms and chamfer strips. Place and brace reinforcement allow 3” min cover per

ACI. See attached drawings for reinforcement schedule.

Concrete shall have a minimum strength of 3000psi @ 28 days with 4”slump

Place concrete and mechanically vibrate. Concrete properties

Slab to be poured level. Provide a rough broom finish surface.

Repair asphalt around slab

Keep concrete moist. Cure per ACI-301 for 7 days.

Foundation anchor bolts provided by others after proper curing of concrete

Bollards pipe shall be SCH40 steel pipe filled with concrete centered in 1’-4” diameter hole, primed &painted safety yellow.

Reline the parking area and safety stripes

All work shall be in compliance to OSHA requirements.

Start of Contract:

2. The Contractor shall notify the Contracting Officer in writing once all equipment, 2of 6 materials and tools are available and ready to be installed in accordance with this contract.

The Government and the Contractor shall mutually agree upon a start date and the

Contractor shall be given a minimum of seven days notice to begin work.

Material and Equipment Submittals:

3. Upon award of the contract, the Contractor shall provide manufacturer’s materials and equipment specification bulletins and / or cut sheets pertaining to this contract work. The

Contracting Officer’s Technical Representative shall review the Contractor’s materials and equipment specification data information for approval and / or disapproval.

Execution of Work:

4. The contract work shall be accomplished during normal hours of operation, 0700 through 1600, Monday through Friday. The duration of this contract shall not exceed (30) days from the start of work.

Housekeeping:

5. During the contract period, the Contractor shall be responsible for maintaining a continuous clean working environment in all areas where contract work is being accomplished on a daily basis. At the end of each working day, the Contractor shall sweep down and clean the working area, collect and remove all debris from Government property. NRL dumpsters may not be used

Waste Management:

6. The contractor shall be responsible for ensuring, to the maximum extent possible, that any waste generated from this contract is diverted from landfills and incinerators and either recycled and/or reused. Waste that can be considered for recycling or reuse includes metals, concrete, gypsum products, paper and cardboard, wood products, masonry, carpet, plastics, mechanical and electrical products and equipment. The Contractor shall be permitted to retain any profit from the sale of recycled or reused waste. The Contractor shall be required to submit to the Contracting Officer within 15 days of the end of the contract, all records of waste generated from the contract. This report should include:

waste category; total amount of waste (in pounds or tons) amount and type of waste recycled or reused; name of recycling facilities used; amount and type of waste landfilled and/or incinerated; name of landfill and/or incinerator used. The Contractor shall use his own dumpsters for disposal of emptied and flattened cardboard products.

Environmental Management System Information:

7. The Contractor shall be aware that the Naval Research Laboratory has implemented an

Environmental Management System (EMS) as directed by Executive Order 13423

Strengthening Federal Environmental, Energy and Transportation Management. EMS policy

3of 6 requires a reduction in hazardous waste disposal through alternate recycling and reclamation efforts. The Contractor shall be aware that the work activities related to this contract can cause real or potential significant environmental impact; thus, the Contractor shall competently perform all duties and responsibilities with a commitment to EMS policy.

Pollution Prevention and Right-to- Know Information shall be observed during the duration of this contract.

Utility Outage:

8. The Contractor shall be made aware that any type of utility (electrical, domestic water, natural gas, steam and steam condensate) outage that is required to accomplish any work pertaining to this contract, a minimum two week notice is standard policy at the Naval

Research Laboratory. If the Contractor requires a utility outage, he/she shall submit this request in writing to the Contracting Officer’s Representative. Under no circumstances shall the Contractor be allowed to secure any utility without written approval from Code

3500, Research and Development Services Division.

Safety:

9. The Contractor shall conform to Federal, State and local safety laws, rules and regulations, to include complying with 29 CFR 1926, and EM 385-1-1, US Army Corps of

Engineers Safety and Health Requirements Manual. The contractor shall provide a competent person as site safety and health officer and competent person(s) for hazards identified in the activity hazard (AHA). Safety training requirements for the site safety and health officer and competent persons are provided in the EM 385-1-1. The contractor shall submit an accident prevention plan including AHA for government review and approval.