Attachment A - Statement of Work.pdf

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STATEMENT OF WORK

Granite Paver Maintenance and Repair Contract

I. BACKGROUND INFORMATION

The National Institute of Standards and Technology (NIST) Gaithersburg campus contains granite paver sidewalks, plazas, and stairways at Building 101. Over time, portions of the paver system have settled, mortar beds have deteriorated, and individual pavers have cracked, creating trip hazards and maintenance concerns. This requirement is to restore the existing paver systems located at Building 101 and throughout the NIST Gaithersburg campus while preserving its historic appearance.

II. PURPOSE

Provide a qualified contractor to perform granite paver maintenance not limited to cleaning, levelling, resetting, replacement, tuckpointing, and related repairs to maintain safe pedestrian access and preserve the architectural appearance of the NIST campus. Any cracked pavers that are replaced shall match appearance of existing pavers.

III. PLACE OF PERFORMANCE

NIST Gaithersburg Campus. Normal work hours shall comply with the General Conditions unless otherwise authorized by the Contracting Officer.

IV. PERIOD OF PERFORMANCE

The period of performance shall be 365 calendar days from issuance of the Notice to Proceed.

V. SCOPE OF WORK

The Contractor shall furnish all labor, supervision, quality control, materials, tools, equipment, transportation, permits, testing, and incidentals necessary to perform the work.

CLIN 0001 – Bldg. 101 Main Entrance Work:

• Submit Safety Plan, AHAs, and Site Coordination Plans for review and approval o See Deliverables for more information

• Clean Granite Pavers and Joints o Contractor shall submit a method statement for cleaning the pavers.

o After the method statement is approved by NIST, Contractor shall coordinate with the COR so the cleaning can be witnessed to ensure the paver is not damaged by the cleaning.

o Contractor shall not start cleaning pavers which will be re-installed until after the cleaning method is tested on a cracked paver and reviewed by NIST.

• Provide new mortar setting bed o Contractor shall review “unlevelled granite paver areas” with the COR and document square footage of granite to be levelled. This document will be submitted to COR review and approval.

o Contractor shall demolish and properly dispose of sub-base of unlevelled granite pavers.

o Contractor shall provide a new 1” type S polymer mixed mortar setting bed with 16 ga wire mesh for the granite pavers to be levelled

2 | P a g e o For bidding purposes, assume 250 SF to receive new sub-base

• Reset Granite Pavers o Reset the granite pavers on reinforced mortar setting bed

• Tuck point all granite paver joints o Submit product data for review and approval o Contractor shall assume Mapei Ultracolor Plus, grout color 5077 frost.

• Re-place any cracked pavers if applicable o This task is applicable if necessary o Contractor shall review with the COR all cracked pavers they intend to replace.

o No material order is to be placed for the pavers prior to approval of the samples by the COR and NIST Federal Preservation Officer.

o Contractor shall provide the Government with a unit price for each paver size prior to placing the order for the material.

• Provide material for granite paver replacement to match existing field dimensions o Proposed granite or equal: Coldspring Granite, Concord Gray – Rub & Sand Finish o Assume 200 SF

• Dispose of all removed materials offsite.

• Final clean-up of work site and repair any damage done to the grounds or building due to construction.

• Complete closeout

CLIN 0002 – Bldg. 101 Side Entrance Work:

• Submit Safety Plan, AHAs, and Site Coordination Plans for review and approval o See Deliverables for more information

• Clean Granite Pavers and Joints o Contractor shall submit a method statement for cleaning the pavers.

o After the method statement is approved by NIST, Contractor shall coordinate with the COR so the cleaning can be witnessed to ensure the paver is not damaged by the cleaning.

o Contractor shall not start cleaning pavers which will be re-installed until after the cleaning method is tested on a cracked paver and reviewed by NIST.

• Provide new mortar setting bed o Contractor shall review “unlevelled granite paver areas” with the COR and document square footage of granite to be levelled. This document will be submitted to COR review and approval.

o Contractor shall demolish and properly dispose of sub-base of unlevelled granite pavers.

o Contractor shall provide a new 1” type S polymer mixed mortar setting bed with 16 ga wire mesh for the granite pavers to be levelled o For bidding purposes, assume 250 SF to receive new sub-base

• Reset Granite Pavers o Reset the granite pavers on reinforced mortar setting bed

• Tuck point all granite paver joints o Submit product data for review and approval o Contractor shall assume Mapei Ultracolor Plus, grout color 5077 frost.

3 | P a g e o Assume 600 LF of mortar joints to be tuckpointed

• Re-place any cracked pavers if applicable o This task is applicable if necessary o Contractor shall review with the COR all cracked pavers they intend to replace.

o No material order is to be placed for the pavers prior to approval of the samples by the COR and NIST Federal Preservation Officer.

o Contractor shall provide the Government with a unit price for each paver size prior to placing the order for the material.

• Dispose of all removed materials offsite.

• Final clean-up of work site and repair any damage done to the grounds or building due to construction.

CLIN 0003 – Additional Granite Paver Repair and Maintenance Allowance:

This CLIN provides funding for additional granite paver repair work within the scope of this contract when authorized in writing by the Contracting Officer. CLIN 0003 is a not-to-exceed allowance. The Government is under no obligation to expend the entire allowance amount.

Work shall be priced using the awarded unit prices contained in the Granite Paver Unit Pricing Schedule (Solicitation Attachment F). Offerors shall submit unit prices for anticipated repair items including:

• paver resetting,

• mortar bed replacement,

• tuckpointing,

• cleaning,

• replacement pavers by size, and

• mobilization.

Additional work within scope of this contract may be authorized only by written bilateral contract modification executed by the Contracting Officer. Each modification shall identify:

• Work location

• estimated quantities

• completion date

• applicable unit-price items

• and any special phasing requirements.

No work shall begin until the Contractor receives a written Notice to Proceed from the Contracting Officer.

VI. GENERAL REQUIREMENTS

Only the Contracting Officer may authorize changes affecting scope, price, or schedule. The COR may review technical submittals, inspect work, and monitor performance within the existing scope.

The Contractor shall submit a Safety Plan, Activity Hazard Analyses, Quality Control Plan, Project Schedule, Site Coordination Plan, and product data prior to commencing work.

Government review period for submittals shall generally be ten (10) business days.

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The Government and its authorized representatives, including Construction Management contractors, may photograph or record the work for inspection, quality assurance, progress documentation, safety, and contract administration. Such photographs are Government records.

The Contractor shall maintain a documented Quality Control program and daily inspection records.

Finished work shall be level, stable, free of rocking, match adjacent grades, and match existing granite in size, finish, texture, and color.

INSPECTION & ACCEPTANCE

Inspection shall be performed in accordance with FAR 52.246-12, Inspection of Construction. The Government may reject nonconforming work prior to acceptance.

Acceptance shall occur after completion of all punch-list items and verification that the work complies with the contract requirements.

SAFETY & SECURITY

Comply with OSHA 29 CFR 1926, NIST badging requirements, and approved AHAs.

Maintain a competent person onsite whenever work is being performed.

KEY PERSONNEL

The Contractor shall designate a Project Manager, Superintendent/Job Foreman, Competent Person, and Quality Control Manager. Substitution of key personnel requires prior written approval of the Contracting Officer.

VII. DELIVERABLES

Minimum deliverables shall include the following:

1. The Health and Safety Plan shall include an Activity Hazard Analysis (AHA) for each task required to complete the Project detailed above. This plan is due 10 calendar days after award is made.

2. Site Coordination Plan (coordinated with NIST)

a. This site coordination plan will be submitted to NIST ensure pedestrian and traffic safety control measures are in place during this work.

b. The main entrance shall remain open at all times during construction. Work shall be phased such that the main entrance remains open.

c. This site coordination plan review and approval takes approximately four weeks to complete.

d. Active construction shall be prohibited until site coordination plan is approved by

NIST

e. Proposed Staging Area

f. Proposed Active Construction Area

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3. Site Construction Fence and Support

a. Proposed Construction Fence

b. Window screening material & attachment to Fence

c. Screening shall follow manufacturers’ install instruction and attachment method

d. Construction fencing shall be supported for additional wind loading due to wind screening

4. Granite Plan Levelling Plan

a. Map of granite pavers to be levelled

5. Product Data

a. Granite Paver Cleaning Method

b. Mortar – Setting Bed

c. Paver Joint Material

6. Samples

a. Granite Paver

7. Quality Control Plan

8. Project Schedule

9. Warranty Documentation

10. Release of Claims

11. Any closeout documentation required by the contract

VIII. PAYMENT SCHEDULE

Payment shall be made in accordance with the contract payment provisions. Final payment is contingent upon completion of all required closeout documentation and Government acceptance.