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Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Biological Water-quality 1980-07-30 1981-09-22
Information Water-quality 1979-12-20 1988-11-01
Inorganics, Major, Metals Water-quality 1988-08-30 1988-11-01
Inorganics, Major, Non-metals Water-quality 1980-07-30 1988-11-01
Inorganics, Minor, metals Water-quality 1988-08-30 1988-11-01
Microbiological Water-quality 1979-12-20 1981-09-22
Nutrient Water-quality 1980-07-30 1983-08-09
Organics, other Water-quality 1980-07-30 1980-09-16
Physical Daily Values, Unit Values, Water-quality 1983-10-14 2024-11-01
Population/Community Water-quality 1979-12-20 1981-09-22
n/a USGS Annual Water Data Reports Site 2022-01-01 2022-01-01
Water Data for the Nation inventory

Monitoring location 01655480 is associated with an Estuary in Charles County, Maryland. Current conditions of Estuary or ocean water surface elevation above NAVD 1988 are available. Water data back to 1979 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
01655480 n/a
Site name
POTOMAC RIVER AT INDIAN HEAD, MD n/a
Site type
Estuary
ES
DMS latitude 383603 n/a
DMS longitude 0771056 n/a
Decimal latitude 38.60095185 n/a
Decimal longitude -77.1819244 n/a
Latitude-longitude method
Interpolated from Digital MAP. N
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
Charles County 017
Country US n/a
Land net location description n/a
Name of location map INDIAN HEAD, MD n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 0 feet n/a
Method altitude determined GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System X
Altitude accuracy .1 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
Middle Potomac-Anacostia-Occoquan 02070010
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site YNNNYNNYNNNNNNNNNNNNNNNNNNNNNN 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 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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