Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the Federal Aviation Administration's (FAA) science activities, in the Department of Transportation's (DOT) Performance report, focusing on: (1) how fiscal year (FY) 1999 performance report/FY 2001 performance plan addresses FAA's science activities; (2) the extent to which FAA's science activities in the President's FY 2001 budget request are linked to DOT's FY 2001 performance plan; and (3) the extent to which DOT's FY 2001 performance plan addresses weaknesses regarding FAA's science activities."

Report of the Texas State Auditor's Office related to the State Preservation Board's (Board) fiscal year 2000 annual report on the Capitol Fund, which accurately depicts the Fund's activity for the related year and complies with state regulations.

Our goal is to improve geophysical imaging of the vadose zone. We will achieve this goal by providing new methods to improve interpretation of field data. The purpose of this EMSP project is to develop relationships between laboratory measured geophysical properties and porosity, saturation, and fluid distribution, for partially saturated soils. Algorithms for relationships between soil composition, saturation, and geophysical measurements will provide new methods to interpret geophysical field data collected in the vadose zone at sites such as Hanford, WA. This report summarizes work after 10 months of a 3-year project. We have modified a laboratory ultrasonics apparatus developed in a previous EMSP project (No.55411) so that we can make velocity measurements for partially-saturated samples rather than fully-saturated or dry samples. We are testing the measurement apparatus using standard laboratory sand samples such as Ottawa sand samples. Preliminary results indicate that we can measure both compressional and shear velocities in these sand samples. We have received Hanford soil samples (sands from split-spoon cores from an uncontaminated site) and expect to make ultrasonic measurements on them also. We have used the LLNL x-ray facility to perform x-ray computed tomography (XCT) imaging for several partially-saturated Ottawa sand and Lincoln sand samples, …