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Available data

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Continuous data

1 data types available - data from 2021-02-25 to 2026-10-14

Daily data

1 data types available - data from 2021-02-25 to 2026-10-13

Field measurements

3 data types available - data from 2001-09-19 to 2026-08-24

Discrete sample data

170 Observed properties (data types) available - data from 2015-06-04 to 2016-05-23

2 Sampling activities

Statistical tables for select daily data types

1 data types available - data from 2021-02-25 to 2026-10-13

Important information about this monitoring location

The elevation of land surface datum at this station is 218.03 feet above NAVD 1988. To obtain the groundwater level elevation in NAVD 1988 subtract the depth to water level, in feet below land surface, from 218.03 feet.

Location details and information

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Operated in cooperation with:

Massachusetts DCR - Office of Water Resources

USGS - Cooperative Matching Funds

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	423257071243702	n/a
Location name	MA-WWW 160 Westford, MA	n/a
Site type	Well	GW
Decimal latitude (WGS84)	42.549147	n/a
Decimal longitude (WGS84)	-71.410386	n/a
Latitude-longitude method	Differential Global Positioning System (DGPS)	D
Latitude-longitude accuracy	Accurate to + or - .01 sec (Differentially-Corrected GPS).	H
District	Massachusetts	25
State	Massachusetts	25
County	Middlesex County	017
Country	United States of America	n/a
Altitude of gage/land surface	218.03 feet	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.07 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Concord River	01070005
Drainage basin		n/a
Date of first construction	20010820	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
National aquifer	Sand and gravel aquifers (glaciated regions)	N100GLCIAL
Local aquifer	Stratified Deposits, Undifferentiated	112SRFD
Local aquifer type	Unconfined single aquifer	U
Well depth	25.5 feet	n/a
Hole depth		n/a
Source of depth data	S	n/a

Monitoring location MA-WWW 160 Westford, MA - USGS-423257071243702