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A -- TRACE GAS MEASUREMENT AT BARBADOS SOL 52RANR700020 DUE 060997 POC Procurement Technicians, (303) 497-3221 or Fax (303) 497-3163 E-MAIL: NOAA; MASC Acquisition Management, Joyce.J.Mills@noaa.gov. The National Oceanic and Atmospheric Administration (NOAA) of the Department of Commerce has a requirement for a Study to Measure Trace Gas Concentrations at Barbados. Concerns having the capability to furnish the following services should give written notice within 45 calendar days from the date of this notice. The proposed contract is to obtain ambient air concentrations continuously, every 40 minutes, of CFCl3, CF2Cl2, CCl4, CH3CCl3, N2O, CH4, CHCl3, and CF2ClCFCl2 taken within 100 meters of the seacoast at East Point (also known as Ragged Point), Barbados. The measurements should be made for 5 years beginning approximately August 20, 1997. Measurements shall be made with an 1% accuracy (relative to previous ALE-GAGE measurements) of 0.5% for CH4 and 1% for all other species. The measurements shall be directly comparable to previous measurements made at the same location since 1978 by the Atmospheric Lifetime Experiment and the Global Atmospheric Gases Experiment (GAGE). Instruments for making the measurements shall be housed in an air-conditioned shelter. Results of the measurements shall be provided to NOAA as daily mean concentrations and associated standard deviation of each species within four months of the measurement. To be considered, respondents must submit evidence substantiating that each of the following qualification requirements can be met: (1) Demonstrated experience using gas chromatographs for high- precision atmospheric measurements of the species required. (2) Demonstrated access to gas calibration standards of all species used for the ALE and GAGE experiments. (3) Demonstrated ability to install gas chromatographic instruments for unattended operation for high-precision trace gas measurements at a remote location. (4) Demonstrated capability to install and operate the instruments at Ragged Point, Barbados. (5) Demonstrated capability to provide continuity with, and direct comparability to, the similar measurements made at the location since 1978. In the absence of other qualified sources, it is the intent of the Government to award a sole source contract under the authority 41 U.S.C. 253 (c) (1) to International Science Consultants, 39 Avon Castle Drive, Ringwood, Hants. England BH 242BB, 04254-4388, as this source is considered to be the only responsible source and no other type of supplies or services will satisfy agency requirements. This is not a formal solicitation. Notes 22 and Note 26 (0115)

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