USGS 04040000 ONTONAGON RIVER NEAR ROCKLAND, MI

PROVISIONAL DATA SUBJECT TO REVISION

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CONTINUOUS WATER QUALITY MONITORING FOR THIS SITE IS OPERATED SEASONALLY


The precipitation data for this station are temporary and will be displayed only for the most recent 120 days. While the instrumentation is calibrated at least annually by the National Weather Service, standard USGS quality-assurance measures are not performed that would make the data acceptable for archival, retrieval, or future use in general scientific or interpretive studies.



Station operated in cooperation with the Michigan Department of Environment, Great Lakes and Energy,
with financial assistance from the USEPA Great Lakes Restoration Initiative.
This station managed by the UPPER PENINSULA FIELD OFFICE.

Available Parameters Available Period
  
2011-07-08  2024-10-03
1989-10-01  2025-04-18
2017-10-01  2025-04-18
2011-07-08  2024-10-03
2011-07-08  2024-10-03
2011-07-08  2018-11-23
2022-04-18  2025-04-18
2011-07-08  2024-10-03







 (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: 11100 04-18-2025   05:15 EST
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Apr 18 based on 82 water years of record more
Min
(2010)		 25th
percen-
tile		 Median Mean 75th
percen-
tile		 Most Recent
Instantaneous
Value Apr 18		 Max
(2002)
532 2180 4070 4780 5650 11100 16000

Gage height, feet
Most recent instantaneous value: 14.43 04-18-2025   05:15 EST
Graph of Gage height, feet

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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius
 
-- Data temporarily unavailable for the time period specified --

Dissolved oxygen, water, unfiltered, milligrams per liter
 
-- Data temporarily unavailable for the time period specified --

pH, water, unfiltered, field, standard units
 
-- Data temporarily unavailable for the time period specified --

Stream water level elevation above NAVD 1988, in feet
Most recent instantaneous value: 653.09 04-18-2025   05:15 EST
Graph of Stream water level elevation above NAVD 1988, in feet

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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)
 
-- Data temporarily unavailable for the time period specified --