1. INTRODUCTION
2. OBSERVATIONS
3. ANALYSIS OF THE QSO ABSORPTION SPECTRA
4.1. Column Densities
4.2. Non-detections and Saturated Systems
4.3. Covering Fractions
4.4. OVI
4.5. Comparison to Theory and Other Observations
5. GAS KINEMATICS
6. THE TEMPERATURE AND TURBULENCE OF GAS IN THE Z∼2 CGM
7. DISCUSSION
8. SUMMARY