T -- DETAILED HIGH-RESOLUTION SWATH BATHYMETRIC SURVEY OF YELLOWSTONE LAKE BOTTOM AND OBSERVATION OF SPECIFIC SITES USING SUBMERSIBLE ROV

Notice Date

April 9, 2001

Contracting Office

U.S. Geological Survey, Branch Of Acquisition and Federal Assistance, Box 25046, Denver Federal Center, Denver, CO 80225-0046

ZIP Code

80225-0046

Solicitation Number

01CRSS0021

Response Due

May 24, 2001

Point of Contact

Alexandria (Sandie) Williamson 303-236-9337

E-Mail Address

USGS, CR, Branch of Acquisition and Grants (slwillia@usgs.gov)

Description

The U.S. Geological Survey, Minerals Team, Geologic Division, Central Region has a requirement to conduct detailed high-resolution swath-bathymetic survey of Yellowstone Lake bottom and observe/sample specific sites using a submersible remotely operated vehicle (ROV). The purpose of this survey is to locate, image and sample bottom features such as sublacustrine hot spring vent waters, hydrothermal deposits, hydrothermal explosion craters, rock outcrops and lava flows, slump blocks, fault zones, craters and fissures, boulder and cobble deposits (possible fish spawning areas), archeological/historical features (old pier, building foundations, sunken boats, etc.), and submerged shorelines. We expect that features less than a meter high will be resolved and accurately mapped. The survey will require to be conducted using a hull-mounted high-resolution swath sonar mapping instrument such as the commercially produced SeaBeam 1180 (or equal). These system must use multibeam sonar to map a swath (perpendicular to survey lines) with a width of about 8 times water depth. Areas to be mapped and location of survey lines will be planned with USGS personnel, and will be arranged to maximize coverage and overlap of lines. Lines will be navigated with differential GPS provided by the contractor and the relative error of boat position will be less than +/- 2 meters. Seismic reflection data will be simultaneously collected on all bathymetric survey lines using the USGS EdgeTech Chirp instrument at a boat speed of about 5 knots. Submersible ROV sampling and lake-bottom observations will be carried out as planned and required by USGS personnel to "ground-truth" sonar and seismic data and investigate the true nature of lake-bottom features. We require a ROV for underwater scientific studies including video and still photographic documentation of lake bottom features, hot-spring water and rock sampling, temperature and CDT measurements of bottom waters and hot spring vent waters, and scan sonar observations of bottom features. Submersible must be fully operational and available on the survey vessel during sonar mapping operations, so that it can be deployed during weather or locality opportunities. It is anticipated that a contract with one base year plus an additional two 12-month option periods will be awarded under this procurement. The solicitation for this requirement shall be available on or after April 24, 2001. All interested vendors shall request a copy in writing to the Contracting Officer, no telephone requests be accepted. Requests can be faxed to 303-236-5859, to Alexandria (Sandie) Williamson, and shall include point of contact, mailing address, telephone and fax number. This requirement is 100% set-aside for small business. (See Note 1).

Record

Loren Data Corp. 20010411/TSOL004.HTM (W-099 SN50I781)