
Upper Illinois River Basin NAWQA
U.S. Geological Survey OFR 01-459
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Data-file documentation files contain information about the data contained in the summary and raw data files.
Summary data files contain data that have been processed from the raw data files.
Raw data files contain data that have not been processed.
| Water Chemistry | |||
| Field parameters | Data-file documentation | No summary data | Raw data |
| Ions in surface water | Data-file documentation | No summary data | Raw data |
| Nutrients | Data-file documentation | No summary data | Raw data |
| Waste-water detections | Data-file documentation | Summary data | No raw data |
| Sediment Chemistry and Particle Size | Data-file documentation | No summary data | Raw data |