| USGS Parameter Group | Data Types | Start Date | End Date |
|---|---|---|---|
| Inorganics, Major, Metals | Water-quality | 2015-06-04 | 2016-05-23 |
| Inorganics, Major, Non-metals | Water-quality | 2015-06-04 | 2016-05-23 |
| Inorganics, Minor, Non-metals | Water-quality | 2015-06-04 | 2016-05-23 |
| Inorganics, Minor, metals | Water-quality | 2015-06-04 | 2016-05-23 |
| Nutrient | Water-quality | 2015-06-04 | 2016-05-23 |
| Organics, PCBs | Water-quality | 2015-06-04 | 2016-05-23 |
| Organics, other | Water-quality | 2015-06-04 | 2016-05-23 |
| Organics, pesticide | Water-quality | 2015-06-04 | 2016-05-23 |
| Physical | Daily Values, Groundwater Levels, Unit Values, Water-quality | 2001-09-19 | 2024-12-19 |
| Radiochemistry | Water-quality | 2015-06-04 | 2016-05-23 |
| n/a | USGS Active Groundwater Level Network Site | 2001-01-01 | 2021-01-01 |
| n/a | USGS Annual Water Data Reports Site | 2005-01-01 | 2023-01-01 |
Monitoring location 423257071243702 is associated with a Well in Middlesex County, Massachusetts. Current conditions of Depth to water level are available. Water data back to 2001 are available online.
| Metadata Element | Location Metadata | Metadata Code |
|---|---|---|
|
Agency
|
U.S. Geological Survey | USGS |
|
Site identification number
|
423257071243702 | n/a |
|
Site name
|
MA-WWW 160 WESTFORD, MA | n/a |
|
Site type
|
Well
|
GW |
| DMS latitude | 423256.93 | n/a |
| DMS longitude | 0712437.39 | n/a |
| Decimal latitude | 42.5491472 | n/a |
| Decimal longitude | -71.4103861 | n/a |
|
Latitude-longitude method
|
Differentially corrected Global Positioning System. | D |
|
Latitude-longitude accuracy
|
Accurate to + or - .01 sec (Differentially-Corrected GPS). | H |
|
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 | WESTFORD, MA | n/a |
| Scale of location map | 25000 | n/a |
| Altitude of Gage/land surface | 218.88 feet | n/a |
| Method altitude determined | Level or other surveyed method. | L |
| Altitude accuracy | .01 feet | n/a |
|
Altitude datum
|
National Geodetic Vertical Datum of 1929 | NGVD29 |
|
Subbasin hydrologic unit
|
Concord | 01070005 |
|
Drainage basin
|
n/a | |
|
Topographic setting
|
Valley flat
|
V |
| Flags for instruments at site | NNNNYNNNNNNNNNNNNNNNNNNNNNNNNN | n/a |
|
Date of first construction
|
20010820 | n/a |
| Date site established or inventoried | 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 |
|
Data reliability
|
Data have been checked by the reporting agency. | C |
| Data-other GW files | YY Y 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 |
| Project number | 244100200 | n/a |
