Skip to main content

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
Biological Water-quality 2000-06-20 2003-09-09
Information Water-quality 1998-11-18 2023-09-20
Inorganics, Major, Metals Water-quality 1959-09-24 2023-09-20
Inorganics, Major, Non-metals Water-quality 1959-09-24 2023-09-20
Inorganics, Minor, Non-metals Water-quality 1998-11-18 2023-09-20
Inorganics, Minor, metals Water-quality 2002-08-06 2023-09-20
Microbiological Water-quality 2001-08-01 2006-07-12
Nutrient Water-quality 1959-09-24 2023-09-20
Organics, PFAS Water-quality 2020-02-20 2022-03-16
Organics, other Water-quality 1998-11-18 2023-09-20
Organics, pesticide Water-quality 2000-03-21 2022-03-16
Physical Water-quality 1959-09-24 2023-09-20
Sediment Water-quality 2000-06-20 2006-06-05
n/a Site Visits 1959-06-25 2023-09-20
n/a USGS Annual Water Data Reports Site 2006-01-01 2013-01-01
Water Data for the Nation inventory

Monitoring location 01400640 is associated with a Stream in Mercer County, New Jersey. Water data back to 1959 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
01400640 n/a
Site name
Millstone River near Grovers Mill NJ n/a
Site type
Stream
ST
DMS latitude 401848 n/a
DMS longitude 0743521 n/a
Decimal latitude 40.3133333 n/a
Decimal longitude -74.5891667 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
New Jersey 34
State
New Jersey 34
County
Mercer County 021
Country US n/a
Land net location description West Windsor Township n/a
Name of location map Hightstown n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface n/a
Method altitude determined n/a
Altitude accuracy n/a
Altitude datum
n/a
Subbasin hydrologic unit
Raritan 02030105
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried 20070502 n/a
Drainage area
42.6 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 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 n/a