UPV Inspection Project PWS rev 1.docx

Performance Work Statement Project Title: UPV Inspections NexGen Work Task #: 11733277

1. Objectives:

This project scope shall consist of all work required to successfully conduct Unfired Pressure Vessel (UPV) Inspections per AFMAN 32-1068 and NBIC requirements on select tanks and other pressure vessels at Offutt facilities as listed and described below. The inspections shall be VE (internal/external inspection plus Ultrasonic Thickness (UT) exam) unless this method is not possible; in that case the tanks shall receive a VD test (hydrotest). The scope shall also include specified actions to investigate whether certain vessels require inspection, and what kind if so. The project shall have the option for modification to include inspections on these vessels if investigation determines a successful execution path. The project shall have the option for modification to include other UPV inspections if a new need is discovered before the end of the PoP.

2. Conditions:

The existing tanks that are to be inspected are as follows:

Note: insulation for these two tanks most likely contains asbestos – required testing/abatement/removal is part of scope

Note: These six tanks will need special scaffolding or specialty lifts/ladders for full inspection of the tanks and of the relief valves on the tanks. The six tanks cannot be out of service all at once. Two tanks at maximum may be out of service at once.

Note: These two tanks cannot be opened for internal inspection; the access ports are seized shut and there is a high risk of causing damage if they are forced open otherwise. There are no other available inlets to utilize for boroscope internal inspection. These tanks will have to be hydrotested (VD). Ladders and/or a lift will have to be utilized for these.

Note: Due to configuration, this vessel is better accomplished via hydrotest. Insulation will have to be removed and replaced. Insulation may contain asbestos – required testing/abatement/removal is part of scope

Note: Inspecting these tanks will require lifts/ladders, and a full building heating outage.

Note: Access for inspection of this tank will require removal and reinstallation of domestic hot water heater piping. Inspection of this tank requires a domestic hot water system outage.

530 / N/A

Note: This tank requires foam insulation to be removed and replaced for inspection. Inspection of this tank requires a boiler system outage.

>100 / N/A

Note: Both these tanks require insulation be removed for inspection and then reinstalled. Insulation may contain asbestos – required testing/abatement/removal is part of scope. Tanks will require a domestic hot water outage and a boiler outage, respectively. The heating hot water storage tank must have its information confirmed once insulation is removed. If the nameplate information indicates no inspection is required, then the tank shall be internally cleaned and new insulation installed without an official inspection taking place.

Note: Both HXs have foam wrap insulation that must be removed and the HX surfaces cleaned. Once the nameplates are visible it will be determined if an NBIC of the shell must be done. If inspection criteria apply, a VD hydrotest shall be performed. Otherwise, the HXs will be reinsulated without an official inspection.

3. General Requirements:

Project includes, but is not limited to, the following work elements. The contractor shall furnish all materials, labor, transportation, equipment, special tools, expertise, supervision, and services requested to fulfill the requirements of this contract. All task specifications of this Performance Work Statement (PWS) will herein be referred to as “requirements”. No alterations, additions, or deletions shall be made unless by prior approval of the government Project Manager and the government Procuring Contract Officer (PCO). The work shall conform to the most current applicable ASME, NPIC, NFPA, ASHRAE, IMC, IPC, and AFI, ETL, UFGS, Unified Facility Criteria Standards, and manufacturers recommendations. The Contractor shall abide by all required safety regulations, including OSHA requirements, and provide all required PPE. Work shall be completed in a neat, substantial, and competent manner.

The contractor shall perform quality assurance activities that conform to the quality assurance processes outlined in International organization of Standards (ISO) 9001, Quality Management Systems. The Contractor shall use PWS requirements and Original Equipment manufacturer (OEM) guidelines.

During construction the Government will occupy the existing facilities. The contractor shall not restrict nearby pedestrian or vehicular traffic and shall coordinate with the Contracting Officer to facilitate usage. The Contracting Officer shall be notified not less than 15 calendar days in advance of any interruptions in building utilities / services, which will be described in writing.

4. Project Requirements

· The Contractor shall attend a site visit of the work locations prior to starting work.

· The Contractor shall present to the Government for approval an execution plan for all work prior to starting on-site work, so that the entirety of the work can be scheduled and executed in the least amount of outages/inspections.

· Work shall be performed in coordination with the Government to ensure needed notifications to users on system outages.

· The Government (shop personnel) will aid the Contractor with providing isolation and operation of the system to allow performance of the work, testing, and restoration.

· The Contractor shall provide all lock-out tag-outs.

· The Contractor shall provide for disassembly / opening, cleaning. and preparation of all tanks for UPV inspections. The Contractor shall provide for all reassembly requirements after the inspection is complete. This shall include, but is not limited to:

· Cleaning of grease, sediment, debris, loose rust/corrosion, and residue on both the inside and outside of the tank

· Removing all required insulation

· Disconnecting piping connections and / or opening access ports to allow full internal inspection

· Making sure the tank nameplate is legible

· Making sure the relief valve information tag is legible

· Removing the relief valve if prepping for a hydrotest

· Preparing for a hydrotest, such as installing blank flanges or temporary isolations, making sure the pressure gauges are adequate in range/configuration, and installing temporary ones if they aren’t

· Stationing ladders/lifts/scaffolding needed for the inspection

· Installing new gaskets upon reassembly

· Reinstalling usable insulation, or installing new insulation if the old is too deteriorated

· Replacing deteriorated, broken, or missing bolts/nuts/latches

· Reinstalling all piping connections, relief valves (as needed), and access ports to return the UPV to service

· The Contractor shall be responsible for arranging, scheduling, and facilitating an NBIC certified inspector to come on Base to perform the inspections.

· The Contractor shall notify the government immediately of any operational issue, inspection failure, or equipment functionality defect.

· The Contractor shall provide the Government copies of all inspection reports.

· The Contractor shall verify proper operation of all tanks and equipment when placing the UPVs back in service. The Contractor shall verify satisfactory leak checks and any required NDT as needed.

· There shall be the option for incorporating specific repair actions into the scope of the contract, as needed per the inspection or preparation results. Such modifications might include, but are not limited to;

· replacement or addition of a relief valve if the current one is inadequate for any reason

· full replacement of a tank due to inspection failure

· The Contractor shall clean up and dispose of any trash generated from the work. Refuse shall be disposed of off-Base in accordance with Offutt AFB Environmental Special Conditions section 01 57 19.

· The Contractor shall provide a full 1 year warranty on all parts and labor.

· The Contractor shall be responsible for repairing any damage to Government property resulting from contractor activities, assuring the property is returned to its original or better condition.