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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 2005-06-28 2010-09-13
Inorganics, Major, Metals Water-quality 2005-06-28 2010-09-13
Inorganics, Major, Non-metals Water-quality 2005-06-28 2010-09-13
Inorganics, Minor, Non-metals Water-quality 2005-06-28 2010-09-13
Inorganics, Minor, metals Water-quality 2005-06-28 2010-09-13
Nutrient Water-quality 2008-11-12 2010-09-13
Organics, PCBs Water-quality 2009-08-17 2009-08-17
Organics, other Water-quality 2008-11-12 2010-09-13
Organics, pesticide Water-quality 2009-05-27 2009-08-17
Physical Water-quality 2005-06-28 2010-09-13
Sediment Water-quality 2009-08-17 2009-08-17
n/a Peak Measurements 1967-03-07 2023-07-15
n/a Site Visits 1966-09-21 2024-05-16
n/a USGS Annual Water Data Reports Site 2006-01-01 2013-01-01
Water Data for the Nation inventory

Monitoring location 01401595 is associated with a Stream in Somerset County, New Jersey. Water data back to 1966 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
01401595 n/a
Site name
Rock Brook near Blawenburg NJ n/a
Site type
Stream
ST
DMS latitude 402447 n/a
DMS longitude 0744102 n/a
Decimal latitude 40.41305556 n/a
Decimal longitude -74.68388889 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
Somerset County 035
Country US n/a
Land net location description Montgomery Township n/a
Name of location map Rocky Hill n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 63.45 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
Raritan 02030105
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNNNYNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried 19991103 n/a
Drainage area
9.03 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