Department of the Interior, U.S. Geological Survey, 345 Middlefield Road, Menlo Park, CA 94025

66 -- SEIMOMETERS-21 EACH OF THE 1HZ WITH CABLE AND 5 EACH OF THE 2HZ WITH CABLE Contact Maribel Torres, Purchasing Agent (415) 329-4171. The U.S. Geological Survey (USGS) in Menlo Park, California, intends to place on a sole-source basis a purchase order with Mark Products in Houston, TX for the purchase of 26 total seimometers. Quantity of 21 each of the L4 1hz vertical borehole style 5500 ohms coil with 50 foot cable with calibration coil. Quantity of 5 each of the L-223D 2hz 5470 ohms coil with 50 foot cable. This purchase is a sole source due to the fact that these particular seismometers are compatible with existing equipment and that the frequency characteristics are well known. A change of vendor would require substantial expenditures of time and money to accommodate the new sensor. Due to a lack of time this announcement will not post for 15 days. No RFQ will be issued for this solicitation. (057)

Loren Data Corp. http://www.ld.com (SYN# 0364 19960228\66-0011.SOL)