Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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 legacy user interface will continue to function for several weeks. However, this user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  NWIS >  USGS-CO >  USGS-07083000

HALFMOON CREEK NEAR MALTA, CO (USGS-07083000) site data in the Water Quality Portal

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

This stream site, maintained by the USGS Colorado Water Science Center (identifier USGS-CO), has the name "HALFMOON CREEK NEAR MALTA, CO" and has the identifier USGS-07083000. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)11020001. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 23.5 sq mi.

This site is located in Lake County County, Colorado at 39.17221259000000 degrees latitude and -106.3891926000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from MAP." and the accuracy is 5 seconds. The source map scale is 1:24000. This site is at an elevation of 9830 feet and the accuracy of the elevation measurement, collected using the method "Interpolated from topographic map." is 15 feet. The vertical coordinate reference system is NGVD29.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-07083000" 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 2011 - 2011
Biological, Algae, Phytoplankton, Cyanobacteria, Periphyton 2011 - 2011
Biological, Algae, Phytoplankton, Photosynthetic Pigments 2011 - 2011
Information 1970 - 2017
Inorganics, Major, Metals 1965 - 2002
Inorganics, Major, Non-metals 1965 - 2011
Inorganics, Minor, Metals 1965 - 1996
Inorganics, Minor, Non-metals 1965 - 1996
Microbiological 1970 - 1996
Nutrient 1965 - 2011
Organics, Other 1972 - 2002
Organics, PCBs 1972 - 1981
Organics, Pesticide 1970 - 1981
Physical 1959 - 2017
Radiochemical 1967 - 1996
Sediment 1967 - 1995
Stable Isotopes 1986 - 1990
*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-CO
OrganizationFormalName USGS Colorado Water Science Center
MonitoringLocationIdentifier USGS-07083000
MonitoringLocationName HALFMOON CREEK NEAR MALTA, CO
MonitoringLocationTypeName Stream
HUCEightDigitCode 11020001
DrainageAreaMeasure/MeasureValue 23.5
DrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 39.17221259000000
LongitudeMeasure -106.3891926000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 5
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 9830
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue 15
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName Interpolated from topographic map.
VerticalCoordinateReferenceSystemDatumName NGVD29
CountryCode US
StateCode 08
CountyCode 065
ProviderName NWIS