Statement of Work.pdf

NOAA Ship Ferdinand R. Hassler Potable Water System Repairs R1

April 2023

Statement of Need: Potable Water System Repairs R1

1.0 Intent: This statement of need is submitted in response to Ferdinand R. Hassler CASREP 2023-02 and contains requirements for repairing the failed #2 (aft) potable water (PW) pressure vessel (PV), and performing preventative maintenance on the #1 (forward) potable water pressure tank.

2.0 References

2.1 NOAA Ship Drawing: FP03 Fresh and Potable Water

2.2 Brochure

3.0 Government Furnished Material

3.1.1 QTY (2) Pro-Source Composite Pressure Tank, PSC-60-20

4.0 Requirements

4.1 Observe potable water system operation and system

pressures.

4.1.1 Measure and record PV #1 air charge pressure IAW 2.2.

4.1.2 Document any system deficiencies observed in a

condition report. Submit the condition report to the Port Engineer with additional maintenance or repair recommendations, including a cost schedule for the same, as necessary.

4.2 Isolate from the potable water system, disconnect and

remove #1 PV from the space. Preserve existing fittings and tubing for re-use to the extent possible.

4.2.1 The Contractor shall be responsible for providing any

new system components required such as tubing, tube fittings and pipe fittings.

4.2.2 The Contractor shall be responsible for disposing of

all discards, including PVs, tubing, etc.

4.3 Crop out damaged copper tubing and mechanical fittings from

PV #2 to the isolation valve. Note that ship’s force has already removed the PV from the space. If the tubing and fittings for #1 PV are not re-usable, crop out as required for proper system repair.

April 2023

4.4 Contractor shall provide new, in-kind seamless copper

tubing and fittings for in-kind replacement. See reference 2.1.

4.4.1 Note that reference 2.1 has not been updated to

reflect the second PV and other system changes since the drawing was issued. Contractor is encouraged to ship-check to ensure accuracy of the reference.

4.5 Install tubing and fittings from isolation valves to the

tanks, #1 and #2 PVs.

4.5.1 Existing configuration is braised at the isolation

valve and threaded at the (pressure tank OEM supply) 90 deg. Tank inlet elbow.

4.6 Install new PVs into potable water system & secure to the ship in accordance with the manufacture’s recommendations and this work item. Provide all new tubing and fittings, and additional supplies as required and connect to PV#1 & #2 to the system.

4.7 Fill tanks with fresh potable water to rinse and check for leaks.

4.8 Drain tank of potable water. Correct any leaks or other

deficiencies found in 4.7.

4.9 Re-fill tanks with fresh potable water and place online

after verifying all OEM requirements have been met and safety checks are complete.

4.10 Adjust system pressure switches and tank air pressure as required to maintain required system pressure and cycles.

Reference 2.2 and data obtained in 4.1.1.

4.11 Following repairs, test the potable water system in the

presence of the Chief Marine Engineer.

4.12 Replace damaged pipe insulation in kind.

4.13 The period of performance will end on 30-April-2023. Submit a report to the Port Engineer and Contract Specialist if an extension is expected.

April 2023

5.0 Quality Assurance

5.1 Submit a detailed report to the port engineer to document work performed. Include costs for all materials in the report.

5.2 Submit certification and technical documentation for new PV and components.

6.0 Notes

6.1 The point of contact for this work is the Port Engineer

Alex Chartier. He can be reached at 228-281-3198 and alex.chartier@noaa.gov.

6.2 The performance location is expected to be:

USCG Station Charleston 196 Tradd Street Charleston, SC 29401

6.3 Photos of failed pressure vessel:

END OF SPECIFICATION

mailto:alex.chartier@noaa.gov