BIOCHLOR - Natural Attenuation Decision Support System (Version 2.2; March, 2002) Developed by Groundwater Services, Inc., Houston, Texas for the Air Force Center for Environmental Excellence. All trademarks referenced herein are the property of their respective holders. Before You Start Run the downloaded file (Biochlor22_97.exe for Excel 97 or Biochlor22_2000.exe for Excel 2000) to install the software. The software package consists of the following files: Readme.txt: Important instruction regarding software installation and version release notes. biochlor22_97.xls: The BIOCHLOR program file compatible to MS Excel '97. biochlor22_2000.xls: The BIOCHLOR program file compatible to MS Excel 2000. bichlor22.hlp: The help file for BIOCHLOR Version 2.2. biochlor10.pdf: User's manual for BIOCHLOR Version 1.0 as the primary source of information about BIOCHLOR. biochlor22.pdf: User's manual addendum for BIOCHLOR Version 2.2. Minimum System Requirements The BIOCHLOR model requires a computer system capable of running Microsoft Excel '97 or 2000 for Windows. Operation requires an IBM-compatible PC equipped with a Pentium II or later processor. A minimum of 64 MB of system memory (RAM) is strongly recommended. Start-Up Start Excel and load the BIOCHLOR model file from the File|Open menu. You will see a message box that asks you whether you want to disable or enable the macros. For BIOCHLOR to operate effectively, you must enable the macros. ** Version 2.2 Notes ** New Features in Version 2.2 BIOCHLOR Version 2.2 includes the following new features: rate constant decision support, source decay, and animation. A rate constant decision support feature was incorporated to help users estimate rate constants required for model calibration. In addition to simulating a source of constant concentration, BIOCHLOR Version 2.2 models a decaying source, which allows the simulation of both plume expansion and contraction. Lastly, an animation feature has been incorporated, which permits the visualization of plume behavior. Version 2.2 Manual Addendum (biochlor22.pdf) describes the new features. Users should continue to refer to the existing BIOCHLOR Version 1.0 User's Manual (biochlor10.pdf) as the primary source of information about BIOCHLOR. Common Error Messages The most common error message encountered with BIOCHLOR is the message "Unable to Open Help File" after clicking on the Help button. To fix the problem, please see the "Troubleshooting Tips" section of the user's manual addendum for Version 2.2 (biochlor22.pdf). Additional Note BIOCHLOR Version 2.2 is the latest version released after fixing the bugs in Version 2.0. A Version 2.1 was developed in the process of fixing the bugs, but it was never released.