Skip to main content

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
Inorganics, Major, Non-metals Daily Values, Unit Values 2017-01-24 2024-11-21
Physical Daily Values, Unit Values 2017-01-24 2024-11-21
n/a USGS Annual Water Data Reports Site 2017-01-01 2024-01-01
Water Data for the Nation inventory

Monitoring location 021720825 is associated with a Tidal stream in Dorchester County, South Carolina. Current conditions of Dissolved oxygen, Gage height, Specific conductance, and more are available. Water data back to 2017 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
021720825 n/a
Site name
ASHLEY RIVER BELOW SUMMERVILLE, SC n/a
Site type
Tidal stream
ST-TS
DMS latitude 325533 n/a
DMS longitude 0800906 n/a
Decimal latitude 32.92583333 n/a
Decimal longitude -80.1516667 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
South Carolina 45
State
South Carolina 45
County
Dorchester County 035
Country US 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 -8.41 feet n/a
Method altitude determined GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System X
Altitude accuracy .03 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
South Carolina Coastal 03050202
Drainage basin
n/a
Topographic setting
Stream channel
C
Flags for instruments at site YNNNYNNNNNNNNNNNNNNNNNNNNNNNNN 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 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

Operated in cooperation with:

logo for US Army Corps of Engineers - Charleston District
US Army Corps of Engineers - Charleston District