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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
01591700 HAWLINGS RIVER NEAR SANDY SPRING, MD
LOCATION - Lat 39°10'28.3", long 77°01'17.1" referenced to North American Datum of 1983, Montgomery County, MD, Hydrologic Unit 02060006, on right bank at downstream side of bridge on State Highway 650, 1.0 mi upstream from mouth, and 1.7 mi north of Sandy Spring.
DRAINAGE AREA - 27 mi².
REVISIONS HISTORY - WDR MD-DE-DC-03-1: 1996-98, 2000-01 (P), https://waterdata.usgs.gov/nwis/dv/?site_no=01591700: 2014-2015.
SURFACE-WATER RECORDS
PERIOD OF RECORD - June 1978 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 302.85 ft above North American Vertical Datum of 1988.
REMARKS - Water Year 2022: Records fair, except those above 350 ft³/s, and those for estimated discharges, which are poor.
Water Year 2021: Records fair, except those above 350 ft³/s, which are poor.
Water Year 2020: Records fair, except those above 350 ft³/s, and those for estimated discharges, which are poor.
Water Years 2017-2019: Records good, except those above 250 ft³/s, which are fair, and those for estimated discharges, which are poor.
Water Year 2016: Records good, except those above 250 ft³/s, which are fair, and those for estimated daily discharges, which are poor.
Water Years 2014-2015: Records good, except those above 50 ft³/s, which are fair, 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.
