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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-11074000

SANTA ANA R BL PRADO DAM CA (USGS-11074000) 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 ANA R BL PRADO DAM CA" and has the identifier USGS-11074000. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)18070203. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 2258 sq mi and the contributing drainage area is 1490 sq mi.

This site is located in Riverside County County, California at 33.88334875000000 degrees latitude and -117.6453296000000 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 451.58 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-11074000" 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 2002 - 2006
Biological, Algae, Phytoplankton 1974 - 2019
Biological, Algae, Phytoplankton, Cyanobacteria, Periphyton 1975 - 2006
Biological, Algae, Phytoplankton, Photosynthetic Pigments 1975 - 2006
Biological, Counts 1974 - 1981
Biological, Fish 1998 - 2019
Biological, Photosynthetic Pigments 1975 - 1979
Information 1970 - 2024
Inorganics, Major, Metals 1966 - 2023
Inorganics, Major, Non-metals 1966 - 2024
Inorganics, Minor, Metals 1967 - 2023
Inorganics, Minor, Non-metals 1966 - 2023
Microbiological 1974 - 1994
Nutrient 1966 - 2023
Organics, Other 1970 - 2024
Organics, PCBs 1972 - 2014
Organics, Pesticide 1970 - 2024
PFAS,Perfluorinated Alkyl Substance 2014 - 2014
Physical 1966 - 2024
Radiochemical 1981 - 2014
Sediment 1967 - 2022
Stable Isotopes 1997 - 2014
*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-11074000
MonitoringLocationName SANTA ANA R BL PRADO DAM CA
MonitoringLocationTypeName Stream
HUCEightDigitCode 18070203
DrainageAreaMeasure/MeasureValue 2258
DrainageAreaMeasure/MeasureUnitCode sq mi
ContributingDrainageAreaMeasure/MeasureValue 1490
ContributingDrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 33.88334875000000
LongitudeMeasure -117.6453296000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 5
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 451.58
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 065
ProviderName NWIS