USGS Water-Year Summary for Site 01585075

Click to hide Water-Year Summary instructions and information

Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
Not all sites have reports available for every water year.

	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)

Select a water year

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

Print this page

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 2020-2024: 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

REMARKS - 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 DAILY RECORD -

WATER TEMPERATURE: Maximum, 30.6 °C, on many days, first occurrence on July 21, 2019; Minimum, - 0.14°C, on many days, first occurrence on January 20, 2025.

SPECIFIC CONDUCTANCE: Maximum, 5500 microsiemens/cm, February 07, 2018; minimum, 21 microsiemens/cm, occurrence on July 2, 2022.

TURBIDITY:

Turbidity meter November 15, 2019 – present: Maximum > 4000 formazin nephelometric units (FNU), July 2, 2022. The initial extreme value exceeded the sensor specs and was censored. The value was known to be greater than 4,000 FNU but that is outside the specs for the sensor; Minimum, 2.3 formazin nephelometric units, on many days, first occurrence was December 07, 2019.

Turbidity meter February 23, 2016- March 03,2020: Maximum, 2,150 formazin nephelometric units (FNU), February. 24, 2016; minimum, 0.5 FNU, on many days, first occurrence was November 23, 2016.

Turbidity meter October 01, 2015 – February 22, 2016: Maximum, 1,290 formazin nephelometric units (FNU), December 23, 2015; minimum, 2.1 FNU, October 26 & 27, 2015.