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LAKE ILO - DEEPEST (21NDHDWQ-381060) site data in the Water Quality Portal

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

This lake site, maintained by the North Dakota Dept. of Health (identifier 21NDHDWQ), has the name "LAKE ILO - DEEPEST" and has the identifier 21NDHDWQ-381060. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)10130201.

This site is located in Dunn County County, North Dakota at 47.3427694 degrees latitude and -102.6699500 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 "21NDHDWQ-381060" 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*
Nutrient 2002 - 2002
Physical 2002 - 2002
*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 21NDHDWQ
OrganizationFormalName North Dakota Dept. of Health
MonitoringLocationIdentifier 21NDHDWQ-381060
MonitoringLocationName LAKE ILO - DEEPEST
MonitoringLocationTypeName Lake
MonitoringLocationDescriptionText LAKE ILO - DEEPEST
HUCEightDigitCode 10130201
LatitudeMeasure 47.3427694
LongitudeMeasure -102.6699500
HorizontalCollectionMethodName Interpolation-Other
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 38
CountyCode 025
ProviderName STORET