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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
Inorganics, Major, Non-metals Unit Values 2019-10-24 2024-11-24
Physical Unit Values 2019-02-05 2024-11-24
Water Data for the Nation inventory

Monitoring location 01104425 is associated with a Lake, Reservoir, Impoundment in Middlesex County, Massachusetts. Current conditions of Dissolved oxygen, Elevation of reservoir water surface above datum, Specific conductance, and more are available. Water data back to 2019 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
01104425 n/a
Site name
HOBBS BRK AT TRAPELO RD AT LINCOLN, MA n/a
Site type
Lake, Reservoir, Impoundment
LK
DMS latitude 422518 n/a
DMS longitude 0711616 n/a
Decimal latitude 42.42166667 n/a
Decimal longitude -71.2711111 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
Massachusetts 25
State
Massachusetts 25
County
Middlesex County 017
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 170 feet n/a
Method altitude determined Interpolated from topographic map. M
Altitude accuracy 10 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
Charles 01090001
Drainage basin
n/a
Topographic setting
Lake or Swamp
L
Flags for instruments at site YNNNNNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried 20170622 n/a
Drainage area
4.96 square miles 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 GC17LG300014 n/a