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* IMPORTANT: Next Generation Station Page

USGS 01584500 LITTLE GUNPOWDER FALLS AT LAUREL BROOK, MD

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION.--Lat 39°30'19.3", long 76°25'54.4", 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.
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. 
REVISIONS HISTORY--WSP 726: 1927-31, Drainage area. WSP 1502: 1936 (M), 1944-46, 1947-48 (P),
   1949 (M), 1950-51.
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.--U.S. Geological Survey satellite data-collection platform at station. 
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 11,800 ft3/s, July 01, 1984, gage height, 11.40 ft;
   minimum discharge, 1.1 ft3/s, Aug. 21, 2002.
COOPERATION.--Funding for the operation of this station is provided by the Baltimore County Department
   of Environmental Protection & Sustainability, and the U.S. Geological Survey. 
This station managed by the MD-DE-DC Water Science Center Baltimore office.

Available Parameters Available Period
  
1998-10-01  2020-01-24
2007-10-01  2020-01-24







 (7)
 

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Summary of all available data for this site
Instantaneous-data availability statement


Discharge, cubic feet per second

Most recent instantaneous value: 32.7 01-24-2020   12:15 EST
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Jan 24 based on 65 water years of record more
Min
(1955)
25th
percen-
tile
Most Recent
Instantaneous
Value Jan 24
Median Mean 75th
percen-
tile
Max
(2019)
15.0 27 32.7 38 54 61 321


Gage height, feet

Most recent instantaneous value: 1.35 01-24-2020   12:15 EST
Graph of  Gage height, feet

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