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WQP Home >  Providers >  STORET >  COEOMAHA_WQX >  COEOMAHA_WQX-OAHLK1073A

OAHLK1073A (COEOMAHA_WQX-OAHLK1073A) site data in the Water Quality Portal

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

This reservoir site, maintained by the US Army Corps of Engineers Omaha District (identifier COEOMAHA_WQX), has the name "OAHLK1073A" and has the identifier COEOMAHA_WQX-OAHLK1073A. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)10130105.

This site is located in Hughes County County, South Dakota at 44.4626700000 degrees latitude and -100.4218000000 degrees longitude using the datum OTHER. 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 "COEOMAHA_WQX-OAHLK1073A" 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.

Leaflet USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road data; Natural Earth Data; U.S. Department of State HIU; NOAA National Centers for Environmental Information. Data refreshed February, 2025.

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 2004 - 2020
Biological, Algae, Phytoplankton 2004 - 2020
Biological, Algae, Phytoplankton, Photosynthetic Pigments 2001 - 2020
Biological, Counts 2004 - 2015
Cyanotoxins, Phytotoxins 2005 - 2020
Information 1999 - 2020
Inorganics, Major, Metals 2001 - 2005
Inorganics, Major, Non-metals 2001 - 2020
Inorganics, Minor, Metals 2001 - 2009
Inorganics, Minor, Non-metals 2001 - 2005
Not Assigned 2017 - 2017
Nutrient 2001 - 2020
Organics, Other 2001 - 2020
Organics, Pesticide 2002 - 2005
Physical 1999 - 2020
*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 COEOMAHA_WQX
OrganizationFormalName US Army Corps of Engineers Omaha District
MonitoringLocationIdentifier COEOMAHA_WQX-OAHLK1073A
MonitoringLocationName OAHLK1073A
MonitoringLocationTypeName Reservoir
MonitoringLocationDescriptionText Deepwater - 1/2 mile NW of outlet structure on east side of the lake - in deepest water
HUCEightDigitCode 10130105
LatitudeMeasure 44.4626700000
LongitudeMeasure -100.4218000000
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName OTHER
CountryCode US
StateCode 46
CountyCode 065
ProviderName STORET