Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

New WQX 3.0 profiles are available at waterqualitydata.us/beta/. These profiles will contain recent USGS data added since March 11, 2024, which marks the beginning of limited accessibility for USGS data. Read more about the 3.0 profiles and associated changes here. This user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  NWIS >  USGS-NJ >  USGS-01442750

Delaware River at Dunnfield NJ (USGS-01442750) site data in the Water Quality Portal

Data Provider: NWIS (Learn more about Water Quality Portal Data Providers)

This stream site, maintained by the USGS New Jersey Water Science Center (identifier USGS-NJ), has the name "Delaware River at Dunnfield NJ" and has the identifier USGS-01442750. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)02040104. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 4150 sq mi.

This site is located in Warren County County, New Jersey at 40.97787306000000 degrees latitude and -75.1357339000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from MAP." and the accuracy is 1 seconds. The source map scale is 1:24000.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-01442750" into the "Site ID" box under Site Parameters

What other monitoring locations are upstream or downstream from this one?

Upstream and downstream locations

This map shows all Water Quality Portal stations that are 10 miles upstream (dashed dark blue) and 10 miles downstream (solid light blue) of this monitoring location (indicated by the large blue circle). The upstream and downstream functionality is provided by the Network Linked Data Index.

When were data collected at this location?

Periods of record for data characteristic groups

For a more detailed breakdown of data, go to the Monitoring Report at the EPA How's My Waterway Application
Characteristic Group Date Range*
Information 1964 - 1964
Inorganics, Major, Metals 1966 - 1975
Inorganics, Major, Non-metals 1964 - 1975
Inorganics, Minor, Metals 1964 - 1974
Microbiological 1968 - 1975
Nutrient 1966 - 1975
Organics, Other 1967 - 1975
Physical 1964 - 1981
Sediment 1964 - 1981
*Date ranges may contain gap years

What other information is available for this location?

Detailed Metadata

For the definitions of the metadata elements, please go to the Water Quality Portal user guide

Location Metadata Value
OrganizationIdentifier USGS-NJ
OrganizationFormalName USGS New Jersey Water Science Center
MonitoringLocationIdentifier USGS-01442750
MonitoringLocationName Delaware River at Dunnfield NJ
MonitoringLocationTypeName Stream
HUCEightDigitCode 02040104
DrainageAreaMeasure/MeasureValue 4150
DrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 40.97787306000000
LongitudeMeasure -75.1357339000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 1
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 34
CountyCode 041
ProviderName NWIS