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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 >  21OHIO_WQX >  21OHIO_WQX-301843

GRAND LAKE ST. MARYS. YSI EAST (21OHIO_WQX-301843) site data in the Water Quality Portal

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

This lake site, maintained by the Division of Surface water (Ohio) (identifier 21OHIO_WQX), has the name "GRAND LAKE ST. MARYS. YSI EAST" and has the identifier 21OHIO_WQX-301843. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)05120101.

This site is located in Mercer County County, Ohio at 40.5288890000 degrees latitude and -84.4597220000 degrees longitude using the datum NAD27. 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 "21OHIO_WQX-301843" 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, Cyanobacteria 2012 - 2012
Biological, Algae, Phytoplankton 2012 - 2012
Inorganics, Major, Non-metals 2012 - 2012
Nutrient 2012 - 2012
Physical 2012 - 2012
*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 21OHIO_WQX
OrganizationFormalName Division of Surface water (Ohio)
MonitoringLocationIdentifier 21OHIO_WQX-301843
MonitoringLocationName GRAND LAKE ST. MARYS. YSI EAST
MonitoringLocationTypeName Lake
HUCEightDigitCode 05120101
LatitudeMeasure 40.5288890000
LongitudeMeasure -84.4597220000
SourceMapScaleNumeric 24000
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName NAD27
CountryCode US
StateCode 39
CountyCode 107
ProviderName STORET