The data is in Excel format. You can download any of the workbooks by clicking on the appropriate title below. The workbook will appear on your desktop, along with another file used for translation. The file used in translation (ends with ".hqx") should be discarded. Clicking on it will cause an additional copy of the Excel file to be created.
Data is being added as time goes on.
Chemical tests (updated 8Nov99)
Phosphorus (updated 4Nov99)
Temperature and Transparency
Transparency graph