USGS 05446500 ROCK RIVER NEAR JOSLIN, IL

PROVISIONAL DATA SUBJECT TO REVISION

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This site is operated in cooperation with the

Cooperator logo U.S. Army Corps of Engineers
Rock Island District - Rock Island, Illinois

and

Cooperator logo Illinois Environmental Protection Agency





NWS River Forecasts

Note: Provisional nitrate plus nitrite load values might not reflect updated discharge and/or nitrate plus nitrite concentration data.
This station managed by the De Kalb Field Office.

Available Parameters Available Period
  
2015-06-26  2020-12-18
1986-09-01  2025-07-04
2007-10-01  2025-07-04
2015-06-26  2020-12-18
2015-06-26  2020-12-18
2015-06-26  2020-12-18
2015-06-26  2017-04-21
2015-06-26  2020-12-18
2015-06-26  2025-07-04
2015-06-26  2025-07-04
2015-06-26  2025-07-04







 (7)
 
  -- or --

 

 
Summary of all available data for this site
Instantaneous-data availability statement

Temperature, water, degrees Celsius
 
-- Data temporarily unavailable for the time period specified --

Discharge, cubic feet per second
Most recent instantaneous value: 5380 07-04-2025   12:45 CST
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Jul 4 based on 85 water years of record more
Min
(1963)		 25th
percen-
tile		 Most Recent
Instantaneous
Value Jul 4		 Median Mean 75th
percen-
tile		 Max
(1993)
1600 3590 5380 5530 8090 9990 31800

Gage height, feet
Most recent instantaneous value: 5.86 07-04-2025   12:45 CST
Graph of Gage height, feet

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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, [Discontinued 12/18/20]
 
-- Data temporarily unavailable for the time period specified --

Dissolved oxygen, water, unfiltered, milligrams per liter, [Discontinued 12/18/20]
 
-- Data temporarily unavailable for the time period specified --

pH, water, unfiltered, field, standard units, [Discontinued 12/18/20]
 
-- Data temporarily unavailable for the time period specified --

Orthophosphate, water, in situ, milligrams per liter as phosphorus
 
-- Data temporarily unavailable for the time period specified --

Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), (HACH)
Most recent instantaneous value: 32.2 07-04-2025   12:00 CST
Graph of Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), (YSI), [Discontinued 12/18/20]
 
-- Data temporarily unavailable for the time period specified --

Nitrate plus nitrite, water, unfiltered, pounds of nitrogen per day
Most recent instantaneous value: 63100 07-04-2025   12:00 CST
Graph of Nitrate plus nitrite, water, unfiltered, pounds of nitrogen per day

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Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen
Most recent instantaneous value: 2.2 07-04-2025   12:00 CST
Graph of Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen

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