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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
01584500 LITTLE GUNPOWDER FALLS AT LAUREL BROOK, MD
LOCATION - Lat 39°30'19.3", long 76°25'54.4" referenced to North American Datum of 1983, Baltimore County, MD, Hydrologic Unit 02060003, on right bank 700 ft upstream from Laurel Brook, 750 ft upstream from bridge on Bottom Road, 5 mi southwest of Bel Air, and 10.5 mi upstream from mouth.
DRAINAGE AREA - 36.1 mi².
REVISIONS HISTORY -
WSP 726: 1927-31, Drainage area.
WSP 1502: 1936 (M), 1944-46, 1947-48 (P), 1949 (M), 1950-51.
https://waterdata.usgs.gov/nwis/uv/?site_no=01584500: 2021.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1926 to September 1970, monthly discharge only for some periods, published in WSP 1302. Annual maximums only, water years 1971-86. October 1998 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 260.62 ft above North American Vertical Datum of 1988, from digital elevation model.
REMARKS - Water Year 2021-2022: Records fair, except those above 400 ft³/s and those for estimated discharges, which are poor.
Water Year 2020: Records fair, except those above 400 ft³/s, which are poor. No estimated discharges.
Water Year 2019: Records good, except those above 400 ft³/s, which are poor. No estimated discharges.
Water Years 2017-2018: Records good, except those above 300 ft³/s and those for estimated discharges, which are poor.
Water Years 2015-2016: Records good, except those above 300 ft³/s and those for estimated daily discharges, which are poor.
Water Year 2014: Records good, except those above 400 ft³/s and those for estimated daily discharges, which are poor.
Water Year 2013 and prior years' accuracy statements can be found in Annual Water Data Reports.
U.S. Geological Survey satellite data-collection platform at station.
U.S. Geological Survey satellite data-collection platform at station.
