August 15, 1995
                                             UPDATE
The U.S. Environmental Protection Agency (EPA) has revised and added to the list of field analytical and
characterization technologies to be included in Vendor FACTS 1.0.  EPA, therefore, is extending the deadline
for submtttal of this Vendor Information Form (VIF) to September 12,  1995.  The revised list of field
analytical and characterization technologies provided below replaces the List of Targeted Monitoring
Technologies on Page 1 of the VIF.                                         j
                                             Analytical
    Air Measurement (weather measurement
        technologies excluded)
    Analytical Detectors (stand-alone only)
    Biosensors
    Chemical Reaction-Based Indicators
        (colormetric)
    In Situ Chemical Sensors
    Fiber-Optic Chemical Sensors and Analyzers
    Gas Chromatography
    Other Chromatography
Immunoassays       !
Infrared (long-path) Monitors
Mass Spectrography (may include GC/MS)
Soil Gas Analyzer Systems
Ion Mobility Spectroscopy
Other Spectroscopy Techniques
Thermal Desorption Devices
X-Ray Fluorescence Analyzers
Electrochemical-based Detectors
                                             Geophysical
     In Situ Physical Sensors
     Ground Penetrating Radar
     High Frequency Electromagnetic (EM)
        Sounding
     Shallow Seismic Reflection/Refraction
     Extraction (chemical)

     Extraction Technologies (analytical traps)
     Supercritical Fluid Extraction
 Subsurface Resistivity Geophysical Instruments
 Subsurface Conductivity Geophysical
   Instruments
 Subsurface Magnetrometry Geophysical
   Instruments      !
 Sampling          |
                    i
 Air Sampling Technologies
 Water Sampling Technologies
 Soil Sampling Technologies

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