USGS Water-Year Summary for Site 01651730

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	Available Parameters
	00010 Temperature, water(Mean,Min.,Max.)
	00095 Specific cond at 25C(Min.,Max.,Mean)
	63680 Turbidity, Form Neph(Max.,Min.,Mean) [Discontinued]
	63680 Turbidity, Form Neph(Max.,Min.,Mean)
	72137 Discharge,tide fltrd(Mean)

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Water year 2024: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2024

01651730 BEAVERDAM CREEK NEAR CHEVERLY, MD

LOCATION - Lat 38°54'58.7", long 76°56'03.5" referenced to North American Datum of 1983, Prince George's County, MD, Hydrologic Unit 02070010, on left bank, 500 ft downstream of Baltimore-Washington Parkway bridge, 1.0 mi southwest of Cheverly, and 0.5 mi upstream from mouth.

DRAINAGE AREA - 14.9 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 2016 to current year.

GAGE - Water-stage recorder and velocity meter. Datum of gage is 0.00 ft above North American Vertical Datum of 1988.

REMARKS -

Water Years 2022-2024: Gage-height record fair and discharge record poor.

Water Year 2021: Gage-height record good and discharge record poor.

Water Years 2019-2020: Gage-height record and discharge record poor.

Water Years 2017-2018: Gage-height record good and discharge record poor.

This is a tidal discharge station. Discharge is computed from relations between stage vs. area and index velocity vs. mean channel velocity. Daily mean discharges were computed using the Godin low-pass filter to remove tidal effects from unit values. U.S. Geological Survey satellite data-collection platform at station.

EXTREMES FOR PERIOD OF RECORD - Maximum recorded elevation, 12.57 ft, September 10, 2020; minimum recorded elevation, -0.24 ft, September 22, 2019. Maximum discharge, 5,140 ft³/s, June 3, 2018; minimum discharge, -40.8 ft³/s, October 10, 2018.

WATER-QUALITY RECORDS

PERIOD OF RECORD -

Turbidity: December 2016 to April 2018, November 2018 - current year.

Specific conductance: January 2020 - current year

Water temperature: January 2020 - current year

PERIOD OF DAILY RECORD -

Turbidity: December 2016 to April 2018, November 2018 - current year.

Specific conductance: January 2020 - current year

Water temperature: January 2020 - current year

INSTRUMENTATION -

Turbidity: December 2016 to April 2018, November 2018 - current year.

Specific conductance: January 2020- July 2022

Water temperature: January 2020 - July 2022

Specific conductance and water temperature were discontinued on 7/18/22. Continuous monitoring of turbidity will continue through the water year.

REMARKS -

Map location: https://waterdata.usgs.gov/md/nwis/nwismap/?site_no=01651730&agency_cd=USGS

Turbidity values greater than 1,000 formazin nepthelometric units (FNU) exceed the instrument calibration range. Values above 1,000 FNU are included in the record but are presumed to have lower accuracy.

The accuracy limit of the turbidity sensor in low turbidity water is +/- 0.3 FNU.

October 1, 2024:
Values are censored and qualified as Less Than (<) 0.3 FNU if they are recorded below 0.3 FNU.

EXTREMES FOR PERIOD OF RECORD -

OBS TURBIDITY: Maximum, 1660 formazin nephelometric units (FNU), March 17, 2017; minimum, 0.4 formazin nephelometric units (FNU), November 29, 2019.

EXO TURBIDITY: Maximum, 1200 formazin nephelometric units (FNU), June 8, 2021; minimum, 1.71 FNU, recorded on 2024-11-04 at 01:15:00 EST.

SPECIFIC CONDUCTANCE: Maximum, 10900 microsiemens per centimeter, February 01, 2021; minimum, 22 microsiemens per centimeter, May 28, 2021

WATER TEMPERATURE: Maximum, 29 °C, on July 13, 2021; minimum, -0.1°C, on January 30, 2022.