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Water-Year Summary for Site 471149092360901

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Available Parameters
00010 Temperature, water(Mean)  
00065 Gage height(Mean)  

Water year 2025: 2025-10-01 to 2026-09-30
 
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USGS Water-Year Summary 2025
471149092360901 UNNAMED STREAM AT CR. 7 S. NEAR SAX, MN
LOCATION - Lat 47°11'49.11", long 92°36'08.7" referenced to North American Datum of 1983, in SE 1/4 SE 1/4 sec.34, T.55 N., R.18 W., St. Louis County, MN, Hydrologic Unit 04010201,
SURFACE-WATER RECORDS
PERIOD OF RECORD -

Gage height and streamflow were measured periodically from 13 Sept. 2019 to 03 Nov. 2021.

Gage height was recorded quarter-hourly from 21 April 2020 at 12:00 CDT to 03 Nov. 2021, except during the following periods:

16 Aug. 2020 at 22:00 CDT - 27 Aug. 2020 at 08:15 CDT: due to transducer batteries suddenly losing voltage and dying.
30 Oct. 2020 at 11:45 CDT - 29 Mar. 2021 at 12:00 CDT: due to transducer being removed during winter/ice conditions.
12 Jul. 2021 at 00:00 CDT - 20 Sept. 2021 at 02:30 CDT: due to transducer being out-of-water during low-flow conditions. 
26 Sept. 2021 at 21:30 CDT - 02 Oct. 2021 at 19:00 CDT: due to transducer being out-of-water during low-flow conditions. 

GAGE -

This is a discrete WQ sampling and streamflow site.

Continuous water level, water temperature, and battery voltage were measured with a previously-used OTT Orpheus Mini 0-10m pressure transducer. These data were recorded quarter-hourly from 21 Apr. 2020 at 12:00 CDT to 03 Nov. 2021 at 15:00 CDT by the same OTT Orpheus Mini pressure transducer, which had a data logger built into it. The data logger was hung from the top of 4-inch diameter PVC pipe, which is attached to 1-inch diameter PVC pipe that runs into the stream. The pressure transducer was powered by 3 AA lithium batteries that were inside of the data logger communications rod. Data were downloaded manually and no telemetry or phone line was wired into the gage.

On 30 Oct. 2020, the OTT Orpheus Mini pressure transducer was temporarily removed from the site during the winter ice conditions. This is a seasonal stage and water temperature site. The transducer will be redeployed in Spring 2021.

All monitoring equipment and RM1 was removed from the site on 03 Nov. 2021 at 15:00 CDT. This site has been discontinued for the St. Louis River Peatland Restoration / Mercury (GLRI) study.

COOPERATION - This site was operated (2019-2021) by the U.S. Geological Survey as a discrete water-quality sampling, discrete streamflow, and continuous stage, and continuous water temperature site for the USGS St. Louis River Peatland Restoration / Mercury (GLRI) study. The USGS St. Louis River Peatland Restoration / Mercury (GLRI) study was a collaborative study between the Fond du Lac Band of Lake Superior Chippewa (FDL) and the U.S. Geological Survey.
WATER-QUALITY RECORDS
PERIOD OF RECORD -

Discrete water-quality samples were collected periodically from 13 Sept. 2019 to 14 Apr. 2021.

Water temperature was recorded quarter-hourly from 21 Apr. 2020 at 12:00 CDT to 03 Nov. 2021 at 15:00 CDT, except during the following periods:

16 Aug. 2020 at 22:00 CDT - 27 Aug. 2020 at 08:15 CDT: due to transducer batteries suddenly losing voltage and dying.
30 Oct. 2020 at 11:45 CDT - 29 Mar. 2021 at 12:00 CDT: due to thermistor being removed during winter/ice conditions.
12 Jul. 2021 at 00:00 CDT - 20 Sept. 2021 at 02:30 CDT: due to thermistor being out-of-water during low-flow conditions. 
26 Sept. 2021 at 21:30 CDT - 02 Oct. 2021 at 19:00 CDT: due to transducer being out-of-water during low-flow conditions. 

COOPERATION - This site was operated (2019-2021 by the U.S. Geological Survey as a discrete water-quality sampling, discrete streamflow, and continuous stage, and continuous water temperature site for the USGS St. Louis River Peatland Restoration / Mercury (GLRI) study. The USGS St. Louis River Peatland Restoration / Mercury (GLRI) study was a collaborative study between the Fond du Lac Band of Lake Superior Chippewa (FDL) and the U.S. Geological Survey.