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DESCRIPTION:

Latitude 39°05'55.1",   Longitude 77°28'16.5"   NAD83

Montgomery County, Maryland, Hydrologic Unit 02070008

Drainage area: 11,130 square miles

Datum of gage: 178.70 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2011-08-24	2025-07-09
Daily Data
Gage height, feet	2011-08-24	2025-07-09	10048
Field/Lab water-quality samples	2022-09-01	2022-09-01	1
Water-Year Summary	2012	2024	13
Revisions	Loading...

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