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Continuous data

2 data types available - data from 2011-08-24 to 2026-08-25

Daily data

1 data types available - data from 2011-08-24 to 2026-08-24

Field measurements

1 data types available - data from 2017-08-14 to 2026-08-04

Discrete sample data

478 Observed properties (data types) available - with data from 2022-09-01 to 2022-09-01

2 Sampling activities

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Important information about this monitoring location

LOCATION.-- On left bank in the wooded flood plain adjacent to the C and O Canal path, approximately 1000 ft downstream of Goose Creek. PERIOD OF RECORD.-- August 2011 to current year. GAGE.-- Water-stage recorder and crest-stage gage. Datum of gage is 178.70 ft above North American Vertical Datum of 1988.

Location details and information

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Operated in cooperation with:

Interstate Commission on the Potomac River Basin

USGS - Cooperative Matching Funds

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	01644148	n/a
Location name	POTOMAC RIVER AT EDWARDS FERRY NEAR POOLESVILLE,MD	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	39.09863888888889	n/a
Decimal longitude (WGS84)	-77.47125	n/a
Latitude-longitude method	Global positioning system (GPS), Standard Positioning Service (SPS) or Precise Positioning Service (PPS)	G
Latitude-longitude accuracy	Accurate to + or - .1 sec (Differentially-Corrected GPS).	1
District	Maryland	24
State	Maryland	24
County	Montgomery County	031
Country	United States of America	n/a
Altitude of gage/land surface	178.7 feet	n/a
Method altitude determined	GNSS3 - Level 3 Quality Survey Grade Global Navigation Satellite System	Y
Altitude accuracy	0.26 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Middle Potomac-Catoctin	02070008
Drainage basin		n/a
Date of first construction		n/a
Drainage area	11130 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	EST	n/a
Site honors Daylight Saving Time	Y	n/a
National aquifer		n/a
Local aquifer		n/a
Local aquifer type		n/a
Well depth		n/a
Hole depth		n/a
Source of depth data		n/a

Monitoring location Potomac River at Edwards Ferry Near Poolesville,md - USGS-01644148