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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-01368000

Wallkill River near Unionville Ny (USGS-01368000) 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 "Wallkill River near Unionville Ny" and has the identifier USGS-01368000. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)02020007. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 140 sq mi.

This site is located in Sussex County County, New Jersey at 41.26009487000000 degrees latitude and -74.5484934000000 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. This site is at an elevation of 379.28 feet and the accuracy of the elevation measurement, collected using the method "Level or other surveyed method." is .01 feet. The vertical coordinate reference system is NGVD29.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-01368000" 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*
Biological, Algae, Phytoplankton 2013 - 2023
Biological, Algae, Phytoplankton, Photosynthetic Pigments 2001 - 2003
Biological, Fish 2013 - 2023
Information 1963 - 2023
Inorganics, Major, Metals 1963 - 2023
Inorganics, Major, Non-metals 1963 - 2023
Inorganics, Minor, Metals 1963 - 2023
Inorganics, Minor, Non-metals 1976 - 2023
Microbiological 1968 - 2006
Nutrient 1963 - 2023
Organics, Other 1963 - 2023
Organics, PCBs 1976 - 2004
Organics, PFAS 2020 - 2022
Organics, Pesticide 1976 - 2023
PFAS,Perfluorinated Alkyl Substance 2020 - 2022
PFOA, Perfluorooctanoic Acid 2020 - 2022
Physical 1963 - 2023
Radiochemical 2004 - 2004
Sediment 1971 - 2005
*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-01368000
MonitoringLocationName Wallkill River near Unionville Ny
MonitoringLocationTypeName Stream
HUCEightDigitCode 02020007
DrainageAreaMeasure/MeasureValue 140
DrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 41.26009487000000
LongitudeMeasure -74.5484934000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 1
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 379.28
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue .01
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName Level or other surveyed method.
VerticalCoordinateReferenceSystemDatumName NGVD29
CountryCode US
StateCode 34
CountyCode 037
ProviderName NWIS