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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-TX >  USGS-08158920

Williamson Ck at Oak Hill, TX (USGS-08158920) 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 Texas Water Science Center (identifier USGS-TX), has the name "Williamson Ck at Oak Hill, TX" and has the identifier USGS-08158920. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)12090205. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 6.30 sq mi and the contributing drainage area is 6.30 sq mi.

This site is located in Travis County County, Texas at 30.23520806000000 degrees latitude and -97.8602848000000 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 798.68 feet and the accuracy of the elevation measurement, collected using the method "Level or other surveyed method." is .1 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-08158920" 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 2007 - 2010
Biological, Fish 2007 - 2010
Information 1978 - 2021
Inorganics, Major, Metals 1974 - 2021
Inorganics, Major, Non-metals 1974 - 2021
Inorganics, Minor, Metals 1974 - 2021
Inorganics, Minor, Non-metals 1974 - 2010
Microbiological 1978 - 2010
Nutrient 1974 - 2021
Organics, Other 1974 - 2021
Organics, PCBs 1978 - 1980
Organics, Pesticide 1978 - 2010
Physical 1974 - 2021
Radiochemical 1980 - 1981
Sediment 2004 - 2004
Stable Isotopes 2009 - 2021
*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-TX
OrganizationFormalName USGS Texas Water Science Center
MonitoringLocationIdentifier USGS-08158920
MonitoringLocationName Williamson Ck at Oak Hill, TX
MonitoringLocationTypeName Stream
HUCEightDigitCode 12090205
DrainageAreaMeasure/MeasureValue 6.30
DrainageAreaMeasure/MeasureUnitCode sq mi
ContributingDrainageAreaMeasure/MeasureValue 6.30
ContributingDrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 30.23520806000000
LongitudeMeasure -97.8602848000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 5
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 798.68
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue .1
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName Level or other surveyed method.
VerticalCoordinateReferenceSystemDatumName NGVD29
CountryCode US
StateCode 48
CountyCode 453
ProviderName NWIS