Attach_1_Specifications.docx

STATEMENT OF WORK GENERATOR 3 FURNACE SIDE WALLs REPAIR 27 July 2016

1.1 GENERAL REQUIREMENTS

Provide all items, articles, materials, operations, or methods listed, mentioned or scheduled on the drawings and/or as specified herein, including all labor, materials, equipment, and incidentals necessary and required for completion of the scope of this project.

1.2 UTILITIES

All reasonable quantities of utilities will be made available from existing utilities to the Contractor without charge. Any temporary connection or lines that may be required will be installed, maintained, and removed by the Contractor at his own expense and in such a manner satisfactory to the Contracting Officer. Removal of such connections or lines will be accom plished prior to final acceptance of the construction. The Contractor shall provide any necessary portable power.

1.3 SAFETY

The Contractor shall comply with all existing Occupational Safety and Health Act (OSHA) standards of safety at all times in the performance of this contract. Hazards to the safe use of the premises due to the Contractor's work and/or equipment shall be suitably marked at all times.

Pedestrian and vehicle traffic ways shall be kept clear and unobstructed.

1.3 CONTRACTOR VEHICLES AND EQUIPMENT

The Contractor shall provide all vehicles and equipment necessary to accomplish the contract work. Power equipment shall be equipped with safety and noise limiting devices. The equipment shall be in a safe and efficient operating condition. The Contractor shall not park vehicles in the project area during non working hours. A designated parking area for vehicles and equipment will be provided. Vehicles will not be allowed on lawns or sidewalks without prior written approval. All equipment will be clearly marked with the Company name.

Truckload Limits: The following load limits shall apply to all contractor-operated equipment on this project:

April I to June I 350 #/inch width of tire

All Other Times 400 #/inch width of tire

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1.4 CONTINUED USE OF FACILITIES:

Building, structures, facilities, and utilities will continue in use by the Government during this contract. The Contractor shall notify Contracting when a no-work condition will occur for more than one day by the Contractor or sub-contractors (except weekends and federal holidays).

1 .5 CONSTRUCTION NEAR UTILITY SYSTEMS

All contractors shall be responsible for processing their own Work Clearance Request (AF Form I 03), commonly known as a "Digging Permit," and coordinating with Government inspectors as required. It is also the sole responsibility of the Contractor to make all requests for locates and marking by the private sector. Note that private companies supply numerous utilities and services on Malmstrom Air Force Base. AF Form 103 does not address coordination with private companies. Requests for locates by private firms shall be performed by the contractor in accordance with State of Montana and Federal regulations. The Contractor is responsible for obtaining all coordination signatures for the permit. The approved permit shall be valid for a period not to exceed 90 calendar days. TO THE MAXIMUM EXTENT POSSIBLE, ELIM INATE PERMANENT MARKINGS ON PAVEMENT AND CURBS. The contractor shall be responsible for maintaining all utility markings. Location marks shall be removed after 14 calendar days if not used. All markings shall be accomplished with water-based chalk (Aervoe Pacific Inc. 1-800-227-0196 or equal). No paints will be used. Detailed permit procedures and guidelines shall be provided to the contractor during the Pre-performance Conference. Digging within three feet of buried communications cables, environmental monitoring wells, electrical cables, irrigation systems, and gas lines shall be performed by hand digging until the utility is exposed. The Project Inspector shall be notified three days prior to digging within a three-foot area near this utility. A representative from communications (Telco) must be present during excavation of Communications Cables. The cable piping routes must be marked prior to excavation in the area. The Contractor shall be held responsible for any damage to a marked or identified utility by excavation procedures. Once the utility is exposed, mechanical excavation may be used if there is no chance of damage occurring to the cable or piping system. The contractor is responsible for marking all excavations he will do, three (3) work days prior to needing existing utilities marked by the government.

1 .6 WORK SCHEDULE

Working hours for the Contractor will normally be between the hours of 7:45 a.m. and 4:15 p.m. excluding Saturdays, Sundays, and Federal Holidays. If the Contractor desires to work during periods other than above, additional government inspection forces may be required. The Contractor must notify the Contracting Officer three days in advance of his/her intention to work duri ng other periods to allow assignment of additional inspection forces when the Contracting Officer determines that they are reasonably available. If such force is reasonably available, the Contracting Officer may authorize the Contractor to perform work during periods other than

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4-T-0009 Attachment normal duty hours/days. However, if inspectors are required to perform in excess of their normal duty hours/days solely for the benefit of the Contractor, the adjustments to the contract price may be made periodically as directed by the Contracting Officer.

2.0 FURNACE WALL REPAIR REQUIREMENTS

2.1 SUMMARY OF WORK:

The contractor shall provide all labor, equipment and materials to replace the 192 misaligned tubes, 4 existing buck stays on the east and west side walls of the combustion chamber of the High Temperature Water Generator #3. The 2 lower buck stays will be modified to extend the full length of the walls. Tubes will be manufactured per manufacture specifications except minimum tube wall thickness will be modified from .109 to .120. Tubes will be welded per manufactured specifications. Tubes will be rolled, welded and rolled again into headers per manufactured specifications. All insulation, sheeting and stays will be removed and replaced according to manufactured specifications. Abrasion blocks will be replaced according to original manufacture design. Contractor shall dispose of all materials removed during repair to include insulation, sheeting and tubes. Contractor shall provide all documentation and inspections required by State and Federal requirements.

The contactor shall provide all labor, equipment and materials to replace all refractory and abrasion block on the rear wall of the combustion chamber of the High Temperature Generator #3 per manufacturer specification. Contractor shall remove auxiliary equipment as needed for execution.

2.2 GENERATOR SPECIFICATIONS:

2.3 SIDE WALL EXECUTION:

2.3.1 Remove all tube header plugs and orifices.

2.3.2 Remove all auxiliary equipment needed to execute tube replacement to include two natural gas burners and attached equipment.

2.3.3 Remove and dispose of all existing insulation, sheeting, tubes and stays required.

2.3.4 Remove and save abrasion block and refactory.

2.3.5 Manufacture 192 tubes per manufacture specifications except minimum tube wall thickness will be modified from .109 to .120 and delivered to job site.

2.3.6 Manufacture 4 buck stays to include the modified lower buck stay per manufacture specifications.

2.3.7 Install 192 tubes per manufacture specifications (rolled, seal welded and rerolled into headers).

2.3.8 Install 4 buck stays per manufacture recommendation

2.3.9 Install tube header plugs and orafices per manufacture specifications

2.3.10 Hydrostatic test and file all required documentation for repair as required by Federal and State requirements.

2.3.11 Install new abrasion block and refractory

2.3.12 Replace all insulation and sheeting per manufacture specification

2.3.13 Reinstall all auxiliary equipment that was removed

2.4 REAR WALL EXECUTION

2.4.1 Remove auxiliary equipment as needed

2.4.2 Remove insulation and sheeting as needed

2.4.3 Remove all refractory

2.4.4 Install new abrasion block and refractory per manufacture recommendations

2.4.5 Reinstall or replace insulation and sheeting as needed

2.4.6 Reinstall all auxiliary equipment that was removed

3.0 GOVERNMENT SUPPORT

3.1 Government Materials Supplied: Header plugs, orafices, and gaskets.

3.2 Testing requirements will be assisted by the government.

4.0 PERIOD OF PERFORMANCE

4.1 The contractor shall have all required work and tests completed no later than 180 calendar days from the issuance of the Notice to Proceed (NTP).