NCCOSC RDTE Division Code 214B 53570 Silvergate Avenue Bldg A33 San Diego CA 92152-5113

A -- BENTHIC FLUX SAMPLING DEVICE SOL N66001-96-R-0120 POC Contract Specialist, Jack Faulkner, (619)553-4503. Contracting Officer, G. E. Petersen. POC for copy, JC Norris, (619)553-4331. Manufacture of a Benthic Flux Sampling Device. The quantity is one each. The system shall be constructed based on a prototype system developed at the Naval Command, Control and Ocean Surveillance Center, San Diego, CA. This effort shall be a commercialization of the prototype system. The device shall be able to autonomously measure the flux of contaminants at the sediment-water interface by enclosing a volume of water in a chamber over the sediment and drawing off water samples at preprogrammed intervals specified previous to the deployment. It shall be deployable from a small craft in waters up to 50 m deep for experiment durations lasting up to 4 days. The device shall have a system for retrieval upon completion of experiments. A video camera and light shall be on board the device for surveying the area for an appropriate landing site and it must be deployable without considerable disturbance to the sediment-water interface. Conditions inside the chamber such as temperature, pH, salinity, and dissolved oxygen shall be monitored and a record of these data kept throughout the deployment duration. A feedback/control system must be in place to maintain ambient oxygen levels inside the chamber. Circulation of the enclosed water shall also be provided to simulate conditions outside of the enclosed volume. As samples are taken from the chamber, outsie water must be drawn in to replace the sample volume. The chamber shall be large enough so that the volume of samples taken does not exceed 10% of the total chamber volume. Materials that will come in contact with water samples shall be contaminant-free, and all components of the device shall be corrosion-resistant. FOB Destination, San Diego, CA. Facsimile letters are acceptable at (619)553-6976. The proposed solicitation listed herein is a 100-percent Small Business Set-Aside. The applicable Standard Industrial Code (SIC) and size standard is 3829 and 500 employees. The solicitation document to be issued on or about 07/26/96. For copies of solicitation only written requests will be honored. See Numbered Note(s): 1. (0185)

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