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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 Inventory Page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 2017-10-28 2017-10-28
Inorganics, Major, Non-metals Water-quality 2017-10-28 2017-10-28
Nutrient Water-quality 2017-10-28 2017-10-28
Physical Water-quality 2017-10-28 2017-10-28
Sediment Water-quality 2017-10-28 2017-10-28
Water Data for the Nation inventory

Monitoring location 393936076104901 is associated with a Lake, Reservoir, Impoundment in Harford County, Maryland. Water data back to 2017 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
393936076104901 n/a
Site name
CONOWINGO RES 1600 FT US OF CONOWINGO DAM NR RB n/a
Site type
Lake, Reservoir, Impoundment
LK
DMS latitude 393936 n/a
DMS longitude 0761049 n/a
Decimal latitude 39.66 n/a
Decimal longitude -76.18027778 n/a
Latitude-longitude method
Mapping grade GPS unit (handheld accuracy range 12 to 40 ft) G
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
Harford County 025
Country US n/a
Land net location description n/a
Name of location map CONOWINGO DAM, MD n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 107 feet n/a
Method altitude determined Interpolated from Digital Elevation Model N
Altitude accuracy 1.6 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
Lower Susquehanna 02050306
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried 20171028 n/a
Drainage area
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 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