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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 Water-Year Summary provides additional information for most sites, and can be accessed via the "Available data for this site" drop-down list.


Station operated in cooperation with the Michigan Department of Environmental Quality,
with financial assistance from the USEPA Great Lakes Restoration Initiative.
Boating safety tips
This station managed by the ESCANABA FIELD OFFICE.

Available Parameters Available Period
All 7 Available Parameters for this site
   
00010 Temperature, water 2011-07-08  2017-07-25
00060 Discharge 1989-10-01  2017-07-25
00065 Gage height 2017-03-27  2017-07-25
00095 Specific cond at 25C 2011-07-08  2017-07-25
00300 Dissolved oxygen 2011-07-08  2017-07-25
00400 pH 2011-07-08  2017-07-25
63680 Turbidity, Form Neph 2011-07-08  2017-07-25

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

Temperature, water, degrees Celsius
Most recent instantaneous value: 20.8 07-25-2017   11:15 EST
Graph of Temperature, water, degrees Celsius

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Discharge, cubic feet per second
Most recent instantaneous value: 779 07-25-2017   11:15 EST
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Jul 25 based on 75 years of record more
Min
(1963)		 25th
percen-
tile		 Median Most Recent
Instantaneous
Value Jul 25		 Mean 75th
percen-
tile		 Max
(1952)
268 500 670 779 786 916 5800

Gage height, feet
Most recent instantaneous value: 6.06 07-25-2017   11:15 EST
Graph of Gage height, feet

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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius
Most recent instantaneous value: 142 07-25-2017   11:15 EST
Graph of Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

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Dissolved oxygen, water, unfiltered, milligrams per liter
Most recent instantaneous value: 8.7 07-25-2017   11:15 EST
Graph of Dissolved oxygen, water, unfiltered, milligrams per liter

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pH, water, unfiltered, field, standard units
Most recent instantaneous value: 7.9 07-25-2017   11:15 EST
Graph of pH, water, unfiltered, field, standard units

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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)
Most recent instantaneous value: 19.4 07-25-2017   11:15 EST
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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