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- 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.
USGS Water-Year Summary 2024
01642199 CARROLL CREEK ABOVE ROCK CREEK AT FREDERICK, MD
LOCATION - Lat 39°25'27.9", long 77°25'47.2" referenced to North American Datum of 1983, Frederick County, MD, Hydrologic Unit 02070009, on left bank 375 ft upstream from culvert on US Route 15 (Frederick Freeway), 1.1 mi northwest of Frederick, and 325 ft upstream of Rock Creek.
DRAINAGE AREA - 7.33 mi². , from automated delineation using 30-meter National Elevation Dataset, digital elevation model data, dated December 2011.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2017 to current year.
GAGE - Water-stage recorder and crest stage gage. Datum of gage is 291.33 ft above North American Vertical Datum of 1988.
REMARKS - Water Year 2022: Records good, except those for 10/01/2022-11/02/2022, which are fair, and those above 350 ft³/s and those for estimated discharges, which are poor.
Water Year 2021: Records good, except those above 350 ft³/s, and those for estimated discharges, which are poor.
Water Year 2020: Records good, except those above 350 ft³/s, which are poor. No estimated discharges.
Water Years 2018-2019: Records good, except those above 350 ft³/s, and those for estimated discharges, which are poor.
U.S. Geological Survey satellite data-collection platform at station.
U.S. Geological Survey satellite data-collection platform at station.
WATER-QUALITY RECORDS
PERIOD OF RECORD - October 2017 to current year.
PERIOD OF DAILY RECORD - October 2017 to current year.
INSTRUMENTATION - Multi-parameter water quality monitor, October 2017 to current year.
REMARKS - Missing record due to periodic instrument malfunction or times when the sensor is being calibrated.
EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum, 28.6°C on 2021-08-13 at 14:50:00 (UTC -05:00); Minimum, 1.8°C, Jan. 5, 6, 2018 . SPECIFIC CONDUCTANCE: Maximum, 7,080 microsiemens/cm, February 7, 2018; Minimum, 96 microsiemens/cm June 23, 2020.
