U.S. GEOLOGICAL SURVEY, BR. OF ACQUISITION & FEDERAL ASSISTANCE, P.O. BOX 25046, MS 204-B, DFC, DENVER, CO 80225

70 -- UPGRADE TO AN EXISTING USGS SYSTEM DATA ACQUISITION AND PROCESSING (GDP12) SYSTEM TO AN GDP32 SYSTEM. SOL 1434CR96QQ00382 DUE 092696 POC Purchasing Agent, Iris D. Turner, (303)236-5900 x348 Concerns having the ability to furnish the property described herein are requested to give written notification (including the telephone number for a point of contact) to the procuring officer above within forty-five (45) calendar days from the date of this synopsis. The USGS has a requirement for an upgrade to an existing USGS geophysical data acquisition and processing (GDP12) system. The requirement will up-grade the GDP12 to a GDP32 in both hardware and software used in acquistiion and processing of electrical geophysical data. The proposed up-grade will also expand the capabilities of the existing GDP12 from 2 channels to 6 channels to a broader capability of different types of electrical geophysical surveys that can be made (time and frequency domain Induced Polarization, natural and controlled source audiomagnetotellurics time and frequency domain electromagnetics and down hole logging). The frequency range will be from 0007 to 8000 Hz with 16 bit data acquisition (1/2 LSB and conversion time of 16 microseconds). All software for processing electrical geophsical survey data (types above) will be provided. The unit will be self-contained in an environmentally sealed container, battery powered (10 hours operation), with an input impedance of 10 megohms at DC. Internal temperature and humidity sensors will monitor the data acquisition unit. Digital data acquisition will be microprocessor controlled and stored internally for tranfer via RS-232 to field computer system. The upgrade will be compatible with existing USGS ancillary GDP12 components, existing Geonics transmitter, and an existing GDP16 system. Based on information available at this time, and in accordance with 41 U.S.C. 253(c)(1), implemented by FAR 6.302-1, the Government considers the item specified as a sole source from ZONGE Engineering Inc. 332 E. Ft. Lowell Rd., Tucson, AZ 85716 and proposes to negotiate a contract with that firm on that basis. However, should additional sources be identified, they will be considered. Firms who feel that they can furnish the required item or its functional equivalent (based upon the criteria specified herein) are invited to submit in writing an affirmative response to this announcement. An affirmative response would include literature, brochures and such other materials which correspond to the required items stated herein. This information will be evaluated and used to determine if competitive opportunities exist. Since no solicitation document exists, requests for such documents without accompanying information will be considered non-responsive to this request without further consideration. This notic may represent the Government's only official notice of this procurement. See Note: 22(0229)

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