USGS Water-Year Summary 2024
01642198 CARROLL CREEK NEAR FREDERICK, MD
LOCATION - Lat 39°26'09.7", long 77°26'26.1" referenced to North American Datum of 1983, Frederick County, MD, Hydrologic Unit 02070009, on right bank 200 ft downstream from bridge on Rocky Springs Road, 2.0 mi northwest of Frederick, and 500 ft downstream of small tributary on left bank.
DRAINAGE AREA - 4.35 mi². from automated delineation using 30-meter National Elevation Dataset, digital elevation model data, dated December 2011.
SURFACE-WATER RECORDS
PERIOD OF RECORD - August 2017 to current year.
GAGE - Water-stage recorder and crest stage gage. Datum of gage is 315.71 ft above North American Vertical Datum of 1988.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - April 2018 to current year.
INSTRUMENTATION - Weighing cell precipitation gage.
EXTREMES FOR PERIOD OF RECORD - Maximum daily precipitation, 6.38 in., September 1, 2021.
WATER-QUALITY RECORDS
PERIOD OF RECORD - August 2017 to current year.
PERIOD OF DAILY RECORD - August 2017 to current year.
INSTRUMENTATION - Multi-parameter water quality monitor, August 2017 to current year.
EXTREMES FOR PERIOD OF RECORD -
WATER TEMPERATURE: Maximum, 26.4°C on July 28, 2023, minimum, 0.1°C, January 4, 2018*.
SPECIFIC CONDUCTANCE: Maximum, 7,870 microsiemens/cm, February 7, 2018; minimum, 65 microsiemens/cm, July 8, 2019.
* Multiple occurrences of the same extreme in selected dataset.