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DESCRIPTION:

Latitude 39°07'41.1",   Longitude 77°20'08.8"   NAD83

Montgomery County, Maryland, Hydrologic Unit 02070008

Drainage area: 101 square miles

Datum of gage: 213.31 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1972-05-31	2017-08-20
Daily Data
Discharge, cubic feet per second	1930-09-26	2017-08-19	31740
Daily Statistics
Discharge, cubic feet per second	1930-09-26	2017-02-06	31546
Monthly Statistics
Discharge, cubic feet per second	1930-09	2017-02
Annual Statistics
Discharge, cubic feet per second	1930	2017
Peak streamflow	1931-07-01	2016-07-31	86
Field measurements	1930-08-18	2017-08-15	763
Field/Lab water-quality samples	1959-03-03	1995-08-16	237
Water-Year Summary	2006	2016	11
Additional Data Sources	Begin Date	End Date	Count
Instantaneous-Data Archive  **offsite**	1972-05-31	2007-09-30	514717

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Record for this site is maintained by the USGS Maryland Water Science Center

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