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.

WQP Home >  Providers >  STORET >  OARS >  OARS-ABT-162

Cox St, Hudson (OARS-ABT-162) site data in the Water Quality Portal

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

This river/stream site, maintained by the OARS - For the Assabet Sudbury & Concord Rivers (Volunteer) (identifier OARS), has the name "Cox St, Hudson" and has the identifier OARS-ABT-162. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)01070005.

This site is located in Middlesex County County, Massachusetts at 42.3996710000 degrees latitude and -71.5459830000 degrees longitude using the datum WGS84. No horizontal location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "OARS-ABT-162" 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*
Microbiological 2019 - 2023
Not Assigned 2003 - 2006
Nutrient 2003 - 2009
Physical 2003 - 2023
*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 OARS
OrganizationFormalName OARS - For the Assabet Sudbury & Concord Rivers (Volunteer)
MonitoringLocationIdentifier OARS-ABT-162
MonitoringLocationName Cox St, Hudson
MonitoringLocationTypeName River/Stream
HUCEightDigitCode 01070005
LatitudeMeasure 42.3996710000
LongitudeMeasure -71.5459830000
SourceMapScaleNumeric 2400
HorizontalCollectionMethodName Interpolation-Digital Map Source
HorizontalCoordinateReferenceSystemDatumName WGS84
CountryCode US
StateCode 25
CountyCode 017
ProviderName STORET