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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 >  STORET >  MYRWA >  MYRWA-MYRMMP

Mystic River at Mary O'Malley Park in Chelsea; sampled from east side of wooden pier at east end of park (MYRWA-MYRMMP) site data in the Water Quality Portal

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

This estuary site, maintained by the Mystic River Watershed Association (Massachusetts) (identifier MYRWA), has the name "Mystic River at Mary O'Malley Park in Chelsea; sampled from east side of wooden pier at east end of park" and has the identifier MYRWA-MYRMMP. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)01090001.

This site is located in Suffolk County County, Massachusetts at 42.3871500000 degrees latitude and -71.0490100000 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 "MYRWA-MYRMMP" 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 2008 - 2015
Nutrient 2008 - 2015
Physical 2008 - 2015
*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 MYRWA
OrganizationFormalName Mystic River Watershed Association (Massachusetts)
MonitoringLocationIdentifier MYRWA-MYRMMP
MonitoringLocationName Mystic River at Mary O'Malley Park in Chelsea; sampled from east side of wooden pier at east end of park
MonitoringLocationTypeName Estuary
HUCEightDigitCode 01090001
LatitudeMeasure 42.3871500000
LongitudeMeasure -71.0490100000
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName WGS84
CountryCode US
StateCode 25
CountyCode 025
ProviderName STORET