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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-11466320

SANTA ROSA C A WILLOWSIDE RD NR SANTA ROSA CA (USGS-11466320) 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 California Water Science Center (identifier USGS-CA), has the name "SANTA ROSA C A WILLOWSIDE RD NR SANTA ROSA CA" and has the identifier USGS-11466320. 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 77.6 sq mi.

This site is located in Sonoma County County, California at 38.44519026000000 degrees latitude and -122.8072129000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from MAP." and the accuracy is 1 seconds. The source map scale is 1:24000. This site is at an elevation of 2.36 feet and the accuracy of the elevation measurement, collected using the method "GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System" is .16 feet. The vertical coordinate reference system is NAVD88.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-11466320" 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 2017 - 2018
Biological, Algae, Phytoplankton, Cyanobacteria, Periphyton 2017 - 2018
Biological, Algae, Phytoplankton, Photosynthetic Pigments 2017 - 2018
Information 2017 - 2018
Inorganics, Major, Metals 2017 - 2018
Inorganics, Major, Non-metals 2017 - 2018
Inorganics, Minor, Metals 2017 - 2018
Inorganics, Minor, Non-metals 2017 - 2018
Nutrient 2017 - 2018
Organics, Other 2017 - 2018
Organics, PCBs 2017 - 2017
Organics, Pesticide 2017 - 2017
Physical 2006 - 2018
Radiochemical 2017 - 2018
Sediment 2006 - 2017
Stable Isotopes 2008 - 2017
*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-11466320
MonitoringLocationName SANTA ROSA C A WILLOWSIDE RD NR SANTA ROSA CA
MonitoringLocationTypeName Stream
HUCEightDigitCode 18010110
DrainageAreaMeasure/MeasureValue 77.6
DrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 38.44519026000000
LongitudeMeasure -122.8072129000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 1
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 2.36
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue .16
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System
VerticalCoordinateReferenceSystemDatumName NAVD88
CountryCode US
StateCode 06
CountyCode 097
ProviderName NWIS