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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 1982-07-13 1982-07-13
Inorganics, Major, Metals Water-quality 1982-07-13 1982-07-13
Inorganics, Major, Non-metals Water-quality 1982-07-13 1982-07-13
Inorganics, Minor, Non-metals Water-quality 1982-07-13 1982-07-13
Inorganics, Minor, metals Water-quality 1982-07-13 1982-07-13
Nutrient Water-quality 1982-07-13 1982-07-13
Organics, other Water-quality 1982-07-13 1982-07-13
Organics, pesticide Water-quality 1982-07-13 1982-07-13
Physical Groundwater Levels, Water-quality 1968-11-01 1982-07-13
Water Data for the Nation inventory

Monitoring location 421334071220101 is associated with a Well in Middlesex County, Massachusetts. Water data back to 1968 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
421334071220101 n/a
Site name
MA-SLW 77 n/a
Site type
Well
GW
DMS latitude 421334 n/a
DMS longitude 0712201 n/a
Decimal latitude 42.22620809 n/a
Decimal longitude -71.3664478 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 1927 NAD27
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 150.00 feet n/a
Method altitude determined Interpolated from topographic map. M
Altitude accuracy 10 feet n/a
Altitude datum
National Geodetic Vertical Datum of 1929 NGVD29
Subbasin hydrologic unit
Charles 01090001
Drainage basin
n/a
Topographic setting
Undulating
U
Flags for instruments at site NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 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
Data have been checked by the reporting agency. C
Data-other GW files YYNNNNNN n/a
National aquifer n/a
Local aquifer n/a
Local aquifer type
n/a
Well depth 18.0 feet n/a
Hole depth
n/a
Source of depth data n/a
Project number n/a