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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 >  EPA_GLNPO >  EPA_GLNPO-P128

Grid1028-Keweenaw Point (EPA_GLNPO-P128) site data in the Water Quality Portal

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

This great lake site, maintained by the EPA Great Lakes National Program (identifier EPA_GLNPO), has the name "Grid1028-Keweenaw Point" and has the identifier EPA_GLNPO-P128.

This site is located in Keweenaw County County, Michigan at 47.4166670000 degrees latitude and -87.5833330000 degrees longitude using the datum UNKWN. 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 "EPA_GLNPO-P128" 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 1978 - 2013
Biological, Counts 1978 - 2007
Biological, Fish 1978 - 2013
Inorganics, Minor, Metals 1983 - 2011
Not Assigned 1983 - 2013
Organics, BDEs 1999 - 2011
Organics, Other 1978 - 2013
Organics, PCBs 1978 - 2013
Organics, Pesticide 1978 - 2011
PFAS,Perfluorinated Alkyl Substance 2011 - 2011
Physical 1978 - 2013
Radiochemical 1978 - 2000
*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 EPA_GLNPO
OrganizationFormalName EPA Great Lakes National Program
MonitoringLocationIdentifier EPA_GLNPO-P128
MonitoringLocationName Grid1028-Keweenaw Point
MonitoringLocationTypeName Great Lake
MonitoringLocationDescriptionText Fish Monitoring Grid 1028 - Keweenaw Point (L. Superior)
LatitudeMeasure 47.4166670000
LongitudeMeasure -87.5833330000
SourceMapScaleNumeric 24000
HorizontalCollectionMethodName Interpolation-Map
HorizontalCoordinateReferenceSystemDatumName UNKWN
CountryCode US
StateCode 26
CountyCode 083
ProviderName STORET