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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Visit the Louisiana page for an example. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. You can update the state name in the URL to visit your State Page or read our announcement on the Water Data for the Nation blog to find links to all the state and territory pages.
Important Inventory Page

USGS Parameter Group Data Types Start Date End Date
Inorganics, Major, Metals Water-quality 1971-06-02 1972-06-20
Inorganics, Major, Non-metals Water-quality 1971-06-02 1972-06-20
Inorganics, Minor, metals Water-quality 1972-06-20 1972-06-20
Nutrient Water-quality 1971-06-02 1972-06-20
Physical Daily Values, Water-quality 1944-10-01 1989-09-29
n/a Peak Measurements 1938-09-21 2021-09-02
n/a Site Visits 1943-03-10 2014-10-16
n/a USGS Annual Water Data Reports Site 2009-01-01 2013-01-01
Water Data for the Nation inventory

Monitoring location 01301000 is associated with a Stream in Westchester County, New York. Water data back to 1938 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
01301000 n/a
Site name
MAMARONECK RIVER AT MAMARONECK NY n/a
Site type
Stream
ST
DMS latitude 405715.6 n/a
DMS longitude 0734404.5 n/a
Decimal latitude 40.9543333 n/a
Decimal longitude -73.7345833 n/a
Latitude-longitude method
Mapping grade GPS unit (handheld accuracy range 12 to 40 ft) G
Latitude-longitude accuracy
Accurate to + or - .1 sec (Differentially-Corrected GPS). 1
Latitude-longitude datum
North American Datum of 1983 NAD83
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
New York 36
State
New York 36
County
Westchester County 119
Country US n/a
Land net location description n/a
Name of location map MAMARONECK, NY n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 11.46 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
Bronx 02030102
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 n/a
Drainage area
22.6 square miles n/a
Contributing drainage area n/a
Time Zone abbreviation EST n/a
Site honors Daylight Saving Time
N 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