USGS Water-Year Summary for Site 01585075

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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(Max.,Mean,Min.) [Discontinued]
	63680 Turbidity, Form Neph(Max.,Mean,Min.) [Discontinued]
	63680 Turbidity, Form Neph(Max.,Min.,Mean)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

01585075 FOSTER BRANCH NEAR JOPPATOWNE, MD

LOCATION - Lat 39°24'30.7", long 76°20'33.5" referenced to North American Datum of 1983, Harford County, MD, Hydrologic Unit 02060003, on right bank, 0.10 mi downstream from highway bridge at Trimble Road and 0.95 mi upstream from mouth.

DRAINAGE AREA - 1.83 mi². from automated delineation using 30-meter National Elevation Dataset, digital elevation model data, dated December 2011.

REVISIONS HISTORY - https://waterdata.usgs.gov/nwis/dv/?site_no=01585075: 2015-2017, 2015-2019

SURFACE-WATER RECORDS

PERIOD OF RECORD - September 2015 to current year.

GAGE - Water stage recorder and crest-stage gage. Datum of gage is 0.53 ft above North American Vertical Datum of 1988.

REMARKS -

Water Years 2020-2022: Records poor, including those for estimated discharges.

Water Years 2017-2019: Records fair, except those for estimated discharges, which are poor.

Water Years 2015-2016: Records fair, except those for estimated daily discharges, which are poor.

U.S. Geological Survey water-data telemeter at station.

WATER-QUALITY RECORDS

EXTREMES FOR PERIOD OF DAILY RECORD -

LEW Meter:

WATER TEMPERATURE: Maximum, 30.6 °C, on many days, first occurrence on July 21, 2019; Minimum,- 0.1°C, on many days, first occurrence on Mar. 14, 2017.

SPECIFIC CONDUCTANCE: Maximum, 3,290 microsiemens/cm, Feb. 16, 2016; minimum, 21 microsiemens/cm, occurrence on July 2, 2022.

YSI EXO 3 (active turbidity meter 03/18/2020- 7/14/22) Maximum > 4000 formazin nephelometric units (FNU), July 2, 2022. The initial extreme value exceeded the EXO specs and was censored. The value was known to be greater than 4,000 FNU but that is outsidethe specs for the EXO; Minimum, 2.3 formazin nephelometric units, on many days, first occurrence was 12/07/19.

YSI OMS-600 (active turbidity meter 02/23/16-03/18/20): Maximum, 2,150 formazin nephelometric units (FNU), Feb. 24, 2016; minimum, 0.5 FNU, on many days, first occurrence was Nov. 23, 2016.

TURBIDITY: FTS DTS-12 (active turbidity meter 10/01/15-02/22/16): Maximum, 1,290 formazin nephelometric units (FNU), Dec. 23, 2015; minimum, 2.1 FNU, Oct. 26 & 27, 2015.

REW Meter:

WATER TEMPERATURE: Maximum, 29 °C, on many days, first occurrence on July 23, 2022; Minimum,- 0.1°C, on many days, first occurrence on January 30, 2022.

SPECIFIC CONDUCTANCE: Maximum, 4160 microsiemens/cm, January 16, 2022; minimum, 28 microsiemens/cm, August 21, 2022.

YSI EXO 2 (Comparison turbidity meter 11/16/21- 7/14/22) Maximum >4000 formazin nephelometric units (FNU),7/2/22; data that exceeded 4,000 FNU were censored because these values exceed EXO specs

Minimum, 6.3 formazin nephelometric units, on many days, first occurrence was 1/1/22.