USGS Water-Year Summary for Site 01583500

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	Available Parameters
	00060 Discharge(Mean)
	63680 Turbidity, Form Neph(Max.,Min.,Mean) [Discontinued]
	63680 Turbidity, Form Neph(Max.,Mean,Min.) [TS032, Discontinued]

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

01583500 WESTERN RUN AT WESTERN RUN, MD

LOCATION - Lat 39°30'38.8", long 76°40'35.4" referenced to North American Datum of 1983, Baltimore County, MD, Hydrologic Unit 02060003, on right bank 100 ft downstream from bridge on Western Run Road, 0.3 mi southeast of Western Run, 2.5 mi northwest of Cockeysville, 3.2 mi upstream from Beaverdam Run, and 5.0 mi upstream from mouth.

DRAINAGE AREA - 59.8 mi².

REVISIONS HISTORY - WSP 1502: 1945-46, 1948(M).

SURFACE-WATER RECORDS

PERIOD OF RECORD - September 1944 to current year.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 262.08 ft above North American Vertical Datum of 1988.

REMARKS -

Water Year 2022: Records fair, except those for estimated discharges, which are poor.

Water Years 2018-2021: Records fair, except those above 500 ft³/s and those for estimated discharges, which are poor.

Water Year 2017: Records good, except those above 1,500 ft³/s and those for estimated discharges, which are poor.

Water Year 2016: Records good, except those above 1,500 ft³/s and those for estimated daily discharges, which are poor.

Water Years 2014-2015: Records fair, except those above 1,500 ft³/s and those for estimated daily discharges, which are poor.

Water Year 2013 and prior years' accuracy statements can be found in Annual Water Data Reports.

U.S. Geological Survey satellite data-collection platform at station.

WATER-QUALITY RECORDS

PERIOD OF RECORD - October 2015 to October 2021.

PERIOD OF DAILY RECORD - TURBIDITY: October 2015 to October 20201.

INSTRUMENTATION - Water quality monitor, October 2015 to October 2021.

REMARKS - Turbidity values greater than 1,600 nephelometric turbidity units (NTU) exceed the instrument calibration range. Values are included in the record but are presumed to have lower precision. Turbidity values that were determined to be a result of debris on the sensor, a function of incident sun angle, or other phenomena that did not appear to be correlated to suspended-sediment concentration were removed by the hydrographer.

EXTREMES FOR PERIOD OF DAILY RECORD - TURBIDITY(FTS): Maximum 2,620 NTU, February 25, 2015; minimum 0.1 NTU, July 18, 2018.

TURBIDITY(EXO): Maximum 799 NTU, April 13, 2020; minimum 1.1 NTU, multiple occurrences recorded, first occurrence April 29, 2020.