OAHLK1256DW (COEOMAHA_WQX-OAHLK1256DW) 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 "OAHLK1256DW" and has the identifier COEOMAHA_WQX-OAHLK1256DW. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC) 10130102. You can learn more about what is happening in this HUC at the EPA's Surf Your Watershed site or at the USGS Science In Your Watershed site.

This site is located in Emmons County County, North Dakota at 46.2510000000 degrees latitude and -100.5558000000 degrees longitude using the datum NAD83. 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-OAHLK1256DW" 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 National Linked Data Index, part of the Open Water Data Initiative.

When were data collected at this location?

Periods of record for data characteristic groups
Characteristic Group Date Range*
Biological 2009 - 2019
Information 2009 - 2019
Inorganics, Major, Non-metals 2009 - 2019
Not Assigned 2010 - 2017
Nutrient 2009 - 2019
Organics, Other 2009 - 2019
Organics, Pesticide 2017 - 2019
Physical 2009 - 2019
*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-OAHLK1256DW
MonitoringLocationName OAHLK1256DW
MonitoringLocationTypeName Reservoir
MonitoringLocationDescriptionText Missouri River mile 1256, near beaver creek, deepwater, long-term ambient monitoring site
HUCEightDigitCode 10130102
LatitudeMeasure 46.2510000000
LongitudeMeasure -100.5558000000
HorizontalCollectionMethodName Interpolation-Digital Map Source (Tiger)
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 38
CountyCode 029
ProviderName STORET