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 legacy user interface will continue to function for several weeks. However, this user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  NWIS >  USGS-MA >  USGS-01171500

MILL RIVER AT NORTHAMPTON, MA (USGS-01171500) 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 Massachusetts Water Science Center (identifier USGS-MA), has the name "MILL RIVER AT NORTHAMPTON, MA" and has the identifier USGS-01171500. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)01080201. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 52.6 sq mi and the contributing drainage area is 52.6 sq mi.

This site is located in Hampshire County County, Massachusetts at 42.31897839000000 degrees latitude and -72.6650907000000 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 169.34 feet and the accuracy of the elevation measurement, collected using the method "Interpolated from topographic map." is 5 feet. The vertical coordinate reference system is NAVD88.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-01171500" 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 1994 - 2005
Inorganics, Major, Metals 1956 - 1994
Inorganics, Major, Non-metals 1956 - 2024
Inorganics, Minor, Metals 1956 - 1994
Inorganics, Minor, Non-metals 1994 - 1994
Nutrient 1956 - 2023
Organics, Other 1994 - 2023
Organics, PCBs 1994 - 1994
Organics, Pesticide 1994 - 1994
Physical 1955 - 2024
Radiochemical 1994 - 1994
Sediment 1987 - 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-MA
OrganizationFormalName USGS Massachusetts Water Science Center
MonitoringLocationIdentifier USGS-01171500
MonitoringLocationName MILL RIVER AT NORTHAMPTON, MA
MonitoringLocationTypeName Stream
HUCEightDigitCode 01080201
DrainageAreaMeasure/MeasureValue 52.6
DrainageAreaMeasure/MeasureUnitCode sq mi
ContributingDrainageAreaMeasure/MeasureValue 52.6
ContributingDrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 42.31897839000000
LongitudeMeasure -72.6650907000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 1
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 169.34
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue 5
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName Interpolated from topographic map.
VerticalCoordinateReferenceSystemDatumName NAVD88
CountryCode US
StateCode 25
CountyCode 015
ProviderName NWIS