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USGS 05587450 Mississippi River at Grafton, IL
Data Type
Begin Date
End Date
Count
Current / Historical Observations
(
availability statement
)
2007-10-01
2026-06-11
Daily Data
Discharge, cubic feet per second
1933-04-01
2026-06-10
33338
Gage height, feet
1986-11-14
2026-06-11
14313
Daily Statistics
Discharge, cubic feet per second
1933-04-01
2025-09-15
33071
Monthly Statistics
Discharge, cubic feet per second
1933-04
2025-09
Annual Statistics
Discharge, cubic feet per second
1933
2025
Peak streamflow
1844-06
2024-07-10
39
Field measurements
1988-02-19
2026-06-09
471
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)
1991-07-18
2011-06-08
4
Water-Year Summary
2006
2024
19
Revisions
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IL003 415739088444201 40N04E-11.5F
Data Type
Begin Date
End Date
Count
Revisions
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