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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.

USGS Parameter Group Data Types Start Date End Date
Biological Water-quality 1979-03-28 2023-12-21
Information Water-quality 1978-11-09 2024-03-06
Inorganics, Major, Metals Water-quality 1978-08-03 2023-10-03
Inorganics, Major, Non-metals Water-quality 1978-08-03 2024-03-06
Inorganics, Minor, Non-metals Water-quality 1978-08-03 2023-10-03
Inorganics, Minor, metals Water-quality 1978-08-03 2023-10-03
Microbiological Water-quality 1979-03-28 2019-10-08
Nutrient Water-quality 1978-08-03 2024-01-04
Organics, PCBs Water-quality 1978-08-03 1993-09-30
Organics, other Water-quality 1978-08-03 2024-01-04
Organics, pesticide Water-quality 1978-08-03 2024-01-18
Physical Daily Values, Unit Values, Water-quality 1967-10-01 2024-11-25
Population/Community Water-quality 1979-03-28 1981-09-29
Radiochemistry Water-quality 1979-04-02 2011-09-12
Sediment Daily Values, Water-quality 1978-01-29 2023-10-03
n/a Peak Measurements 1968-03-25 2024-04-04
n/a Site Visits 1968-08-04 2024-10-17
n/a USGS Annual Water Data Reports Site 2006-01-01 2024-01-01
Water Data for the Nation inventory

Monitoring location 01578310 is associated with a Stream in Harford County, Maryland. Current conditions of Discharge and Gage height are available. Water data back to 1967 are available online.

For information about dam operations, call 1-888-457-4076 or contact Exelon Energy (http://www.exeloncorp.com/)
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
S
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
C
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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