USGS Water-Year Summary 2021
01585219 HERRING RUN AT SINCLAIR LANE AT BALTIMORE, MD
LOCATION - Lat 39°19'04.7", long 76°33'18.5" referenced to North American Datum of 1983, Baltimore City, MD, Hydrologic Unit 02060003, on right upstream side of bridge on Sinclair Lane, and 4.4 mi upstream from mouth.
DRAINAGE AREA - 16.3 mi². from automated delineation using 30-meter National Elevation Dataset, digital elevation model data, dated 2011.
- https://waterdata.usgs.gov/nwis/dv/?site_no=01585219: 2019.
PERIOD OF RECORD - October 2013 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 31.25 ft above North American Vertical Datum of 1988.
PERIOD OF RECORD - WATER TEMPERATURE: Oct 2015 to current year.
SPECIFIC CONDUCTANCE: Oct 2015 to current year.
pH: Oct 2015 to current year.
TURBIDITY: Oct 2015 to current year.
INSTRUMENTATION - Water-quality monitor October 2015 to current year.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 30.9°C, July 21, 2019; minimum, -0.1°C, on Jan. 22, 23, 2016.
SPECIFIC CONDUCTANCE: Maximum, 7140 microsiemens per centimeter, March 21, 2018; minimum, 48 microsiemens per centimeter, August 17, 2016.
pH: Maximum, 9.7 standard units, first occurrence on March 29, 2018; minimum, 6.8 standard units, July 5, 2017.
TURBIDITY: Maximum, 1910 formazin nephelometric units (FNU), August 15, 2016; minimum, 0.0 formazin nephelometric units (FNU) on several days.