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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 >  NWIS >  USGS-CA >  USGS-11461800

LK MENDOCINO NR UKIAH CA (USGS-11461800) site data in the Water Quality Portal

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

This lake, reservoir, impoundment site, maintained by the USGS California Water Science Center (identifier USGS-CA), has the name "LK MENDOCINO NR UKIAH CA" and has the identifier USGS-11461800. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)18010110. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 105 sq mi.

This site is located in Mendocino County County, California at 39.19794690000000 degrees latitude and -123.1816710000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from MAP." and the accuracy is 5 seconds.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-11461800" 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, Phytoplankton 1976 - 1978
Information 1976 - 1978
Inorganics, Major, Non-metals 1976 - 1982
Microbiological 1976 - 1982
Nutrient 1976 - 1978
Physical 1976 - 1982
*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 USGS-CA
OrganizationFormalName USGS California Water Science Center
MonitoringLocationIdentifier USGS-11461800
MonitoringLocationName LK MENDOCINO NR UKIAH CA
MonitoringLocationTypeName Lake, Reservoir, Impoundment
HUCEightDigitCode 18010110
DrainageAreaMeasure/MeasureValue 105
DrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 39.19794690000000
LongitudeMeasure -123.1816710000000
HorizontalAccuracyMeasure/MeasureValue 5
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 06
CountyCode 045
ProviderName NWIS