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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 Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 1969-06-12 1982-08-17
Inorganics, Major, Non-metals Water-quality 1969-06-12 1969-06-12
Organics, other Water-quality 2004-03-03 2006-09-05
Physical Daily Values, Unit Values, Water-quality 1902-10-01 2024-11-21
n/a Peak Measurements 1903-03-26 2023-04-19
n/a Site Visits 1923-05-05 2024-09-09
n/a USGS Annual Water Data Reports Site 2006-01-01 2023-01-01
Water Data for the Nation inventory

Monitoring location 01029500 is associated with a Stream in Penobscot County, Maine. Current conditions of Discharge and Gage height are available. Water data back to 1902 are available online.

The elevation of this gage is 294.10 ft above NAVD of 1988. To obtain stream water surface elevation values in NAVD88, add 294.10 feet to gage height values.
Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
01029500 n/a
Site name
East Branch Penobscot River at Grindstone, Maine n/a
Site type
Stream
ST
DMS latitude 454349 n/a
DMS longitude 0683522 n/a
Decimal latitude 45.73027778 n/a
Decimal longitude -68.5894444 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
Maine 23
State
Maine 23
County
Penobscot County 019
Country US n/a
Land net location description n/a
Name of location map East Millinocket n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 294.10 feet n/a
Method altitude determined GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System X
Altitude accuracy .17 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
East Branch Penobscot 01020002
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site YNNNYNYNNYNNNNNNYNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried n/a
Drainage area
837 square miles n/a
Contributing drainage area 1086.0 square miles 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 442300100 n/a

Operated in cooperation with:

logo for USGS - Federal Priority Streamgages
USGS - Federal Priority Streamgages