USGS Water-Year Summary for Site 01651000

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	63680 Turbidity, Form Neph(Min.,Max.,Mean)
	63680 Turbidity, Form Neph(Mean,Max.,Min.) [TS087, Discontinued]

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Water year 2022: 2021-10-01 to 2022-09-30

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USGS Water-Year Summary 2022

01651000 NORTHWEST BRANCH ANACOSTIA RIVER NEAR HYATTSVILLE, MD

LOCATION - Lat 38°57'09.2", long 76°57'54.5" referenced to North American Datum of 1983, Prince George's County, MD, Hydrologic Unit 02070010, on right bank 300 ft downstream from bridge on Queens Chapel Road (State Highway 500), 0.8 mi downstream from Sligo Branch, 1.0 mi west of Hyattsville, and 1.6 mi upstream from confluence with Northeast Branch.

DRAINAGE AREA - 49.4 mi².

REVISIONS HISTORY -

WSP 971: 1942(M).

https://waterdata.usgs.gov/nwis/dv/?site_no=01651000: 2018.

https://waterdata.usgs.gov/nwis/uv/?site_no=01651000: 2013-2020.

SURFACE-WATER RECORDS

PERIOD OF RECORD - July 1938 to current year. Monthly discharge only for July 1938 published in WSP 1302.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 16.35 ft above North American Vertical Datum of 1988. Prior to Oct. 22, 1938, nonrecording gage; Oct. 22, 1938 to Sept. 17, 1951, water-stage recorder; Sept. 17, 1951 to Aug. 29, 1952, nonrecording gage and crest-stage gage.

REMARKS -

Water Year 2021: Records good, except those above 3,700 ft³/s, which are poor.

Water Year 2020: Records good, except those above 2,500 ft³/s, which are poor.

Water Years 2018-2019: Records good, except those above 2,500 ft³/s and those for estimated discharges, which are poor.

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

Water Years 2014-2016: Records good, except those above 500 ft³/s, which are fair, 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.

Prior to June 1961, low flow regulated by storage at Burnt Mills Dam, 7.0 mi upstream from station. Inflow pumped from Patuxent River to augment water supply for Washington Suburban Sanitary District, August 1939 to August 1960. Small diversion since 1962 for irrigation of golf courses upstream from station. U.S. Geological Survey satellite data-collection platform at station.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD - TEMPERATURE: January, 2004 - July 2010, September 2015 - present. SPECIFIC CONDUCTANCE: January, 2004 - July 2010, September 2015 - present. TURBIDITY: January, 2004 - July 2010, September 2015 - present. DISCONTINUED PARAMETERS: PH: January, 2004 - July 2010. DISSOLVED OXYGEN: January, 2004 - July 2010.

INSTRUMENTATION - YSI EXO 3 Multi-parameter water-quality monitor is on site that records temperature (C), specific conductance, and turbidity at 15 minute intervals.

EXTREMES FOR PERIOD OF DAILY RECORD -

TEMPERATURE: Minimum: -0.2 °C, Multiple days throughout period of record ; Maximum: 32.1 °C, July 21, 2019.

SPECIFIC CONDUCTANCE: Minimum: 49 microsiemens/cm, September 10, 2020 ; Maximum 14,000 microsiemens/cm, January 28, 2009.

TURBIDITY EXO: Minimum 0.8 FNU, June, 23 2021 ; Maximum 943 on 2021-08-20 at 08:15:00 (UTC -05:00)

DISCONTINUED PARAMETERS: PH: Minimum: 6.5 standard units, May 26, 2009; Maximum 9.5 standard units, February 27, 2008. DISSOLVED OXYGEN: Minimum 1.6, May 14, 2004; Maximum 19.3 mg/L, April 17, 2005. TURBIDITY (6-series): Minimum 0.0 NTU, Multiple days throughout period of record ; Maximum* 985 NTU, July 29, 2017. *Maximum uncorrected Turbidity value which does not exceed our calibration standard limits.