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| Data Type | Begin Date | End Date | Count |
|---|---|---|---|
| Current / Historical Observations (availability statement) | 2007-10-01 | 2025-03-17 | |
| Daily Data | |||
| Stream water level elevation above NGVD 1929, in feet -- West Lock | 1999-10-01 | 2025-08-31 | 9470 |
| Stream water level elevation above NGVD 1929, in feet -- West River | 1999-10-01 | 2025-12-22 | 8776 |
| Stream water level elevation above NGVD 1929, in feet -- East River | 1999-10-01 | 2025-01-29 | 8314 |
| Stream water level elevation above NGVD 1929, in feet -- East Lock | 1999-10-01 | 2025-01-29 | 8328 |
| Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) | 2011-12-01 | 2014-02-24 | 2 |
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