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Important for you to know:

  • Discrete sample data delivery is undergoing modernization. Starting March 11, 2024, there will be a period when new sample data will not be accessible. Learn more about the upcoming change on our blog.
  • New to WDFN: customize and keep track of your list of favorite monitoring locations and data types using the new My Favorites page. To learn more, read our announcement on our Water Data for the Nation blog.

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 2014-05-28 2016-10-18
Inorganics, Major, Non-metals Daily Values, Unit Values, Water-quality 2014-11-05 2024-03-29
Microbiological Water-quality 2014-05-28 2014-09-24
Nutrient Daily Values, Unit Values, Water-quality 2014-08-22 2024-03-29
Physical Daily Values, Unit Values, Water-quality 2014-05-28 2024-03-29
n/a USGS Annual Water Data Reports Site 2014-01-01 2022-01-01
Water Data for the Nation inventory

Monitoring location 01579550 is associated with a Stream in Harford County, Maryland. Current conditions of Dissolved oxygen, Nitrate plus nitrite, Specific conductance, and more are available. Water data back to 2014 are available online.

The established standard operating procedures for instrument maintenance are modified at this site because access to the monitoring equipment may be delayed due to extended periods of elevated river water stage.
Metadata Element Location Metadata Metadata Code
Agency
USGS
Site identification number
n/a
Site name
n/a
Site type
ST
DMS latitude n/a
DMS longitude n/a
Decimal latitude n/a
Decimal longitude n/a
Latitude-longitude method
N
Latitude-longitude accuracy
1
Latitude-longitude datum
NAD83
Decimal Latitude-longitude datum NAD83
District
24
State
24
County
025
Country n/a
Land net location description n/a
Name of location map n/a
Scale of location map n/a
Altitude of Gage/land surface n/a
Method altitude determined N
Altitude accuracy n/a
Altitude datum
NAVD88
Subbasin hydrologic unit
02050306
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site n/a
Date of first construction
n/a
Date site established or inventoried n/a
Drainage area
n/a
Contributing drainage area n/a
Time Zone abbreviation n/a
Site honors Daylight Saving Time
n/a
Data reliability
n/a
Data-other GW files 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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