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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.
Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 1981-10-16 1995-08-18
Inorganics, Major, Metals Water-quality 1993-10-08 1995-08-18
Inorganics, Major, Non-metals Water-quality 1993-10-08 1995-08-18
Inorganics, Minor, metals Water-quality 1993-10-08 1995-08-18
Nutrient Water-quality 1993-10-08 1995-08-18
Physical Daily Values, Unit Values, Water-quality 1970-07-12 2024-11-18
n/a Peak Measurements 1976-09-16 2022-05-28
n/a Site Visits 1975-09-25 2024-08-06
n/a USGS Annual Water Data Reports Site 2006-01-01 2022-01-01
Water Data for the Nation inventory

Monitoring location 01584050 is associated with a Stream in Baltimore County, Maryland. Current conditions of Discharge and Gage height are available. Water data back to 1970 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
01584050 n/a
Site name
LONG GREEN CREEK AT GLEN ARM, MD n/a
Site type
Stream
ST
DMS latitude 392716.9 n/a
DMS longitude 0762844.0 n/a
Decimal latitude 39.45469444 n/a
Decimal longitude -76.47888889 n/a
Latitude-longitude method
Interpolated from MAP. M
Latitude-longitude accuracy
Accurate to + or - 1 sec. S
Latitude-longitude datum
North American Datum of 1983 NAD83
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Maryland 24
State
Maryland 24
County
Baltimore County 005
Country US n/a
Land net location description n/a
Name of location map WHITE MARSH, MD n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 243.34 feet n/a
Method altitude determined Differentially corrected Global Positioning System. D
Altitude accuracy .01 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
Gunpowder-Patapsco 02060003
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site YYNNYNYNNYNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried n/a
Drainage area
9.40 square miles n/a
Contributing drainage area n/a
Time Zone abbreviation EST n/a
Site honors Daylight Saving Time
Y n/a
Data reliability
n/a
Data-other GW files NNNNNNNN 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
Project number n/a

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logo for Baltimore County, Maryland
Baltimore County, Maryland
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USGS - Cooperative Matching Funds