NCMS is assisting the U.S. Navy in seeking to fulfill an urgent need for a partner with expertise in inspection and monitoring of underground bulk fuel storage facilities and aquifer network.
The U.S. Navy utilizes bulk fuel storage facilities, many of which have large underground fuel tanks requiring routine inspection and maintenance. The aquifer which supplies drinking water to the nearby housing is located immediately adjacent to such a facility. Residents have seen and tasted fuel in their drinking water. The goal in this inspection is to determine if, or where, fuel may be entering the aquifer supply tunnel.
Dimensions of target to be inspected:
- Entrance through a 2 foot-diameter manhole, opening to a 60 foot-vertical shaft, which connects at one end of a 5 foot-diameter horizontal tunnel that is approximately 1200 feet long.
- Red Hill Shaft-Plan Profile
Target conditions (potential hazards):
- Tunnel accessibility confirmed for first 300 feet
- Vertical shaft is dry
- Horizontal tunnel is a combination of wet/dry. This tunnel will be partially flooded, even when pumps are turned on.
- Tunnel is known to have hazards such as wood from the support structure.
- Water in the tunnel is clear, however there is a film of emulsified fuel floating on top. A separate crew is working to skim and remove this as soon as possible.
- There is one 60 degree turn approximately 500’ down the tunnel from the vertical shaft (see schematic)
Solution capabilities sought (in order of priority):
- Video footage
- Water samples
- Water current/flow rate
- Temperature (to support modeling efforts)
- Open to additional sensor solutions (e.g. LiDar, etc)
Q: Does this tunnel have a concrete, steel, or rock face?
Q: Is the face smooth or rough?
Q: Will the tunnel at any time during the inspection be completely full of water and require submerged inspection?
A: Water levels can rise to near-full. The tunnel is generally not fully dry nor completely full.
Q: Do we expect other people or equipment in the tunnel during inspection (emulsified fuel removal)?
A: Negative, the tunnel will be cleared of other equipment and personnel during the ROV inspections. Note there is still debris/dunnage in the tunnel.
Interested parties should provide a white paper response with no more than three (3) pages, not including a cover page, using the format below and a corresponding cost summary form. . Responses are due to email@example.com no later than January 28, 2022. All questions or concerns can be addressed to firstname.lastname@example.org.
White Paper Response:
- Describe general approach to accomplish the objectives
- Describe assumptions
- Provide detailed approach to the objectives:
- List of tasks
- List of deliverables
- Provide high-level project schedule and timing
- Describe recent and relevant experience in accomplishing similar objectives
- Provide URLs to corporate presentations that demonstrate engineering, modeling, simulation, prototyping, testing, and manufacturing capabilities.
Provide Cost Summary Form
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