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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-MO >  USGS-07018100

Big River near Richwoods, MO (USGS-07018100) 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 Missouri Water Science Center (identifier USGS-MO), has the name "Big River near Richwoods, MO" and has the identifier USGS-07018100. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07140104. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 735 sq mi.

This site is located in Jefferson County County, Missouri at 38.15961110000000 degrees latitude and -90.7060556000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from Digital MAP." and the accuracy is .5 seconds. The source map scale is 1:24000. This site is at an elevation of 522.53 feet and the accuracy of the elevation measurement, collected using the method "GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System" is .07 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-07018100" 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 2008 - 2016
Biological, Fish 2008 - 2016
Information 1984 - 2024
Inorganics, Major, Metals 1983 - 2023
Inorganics, Major, Non-metals 1983 - 2024
Inorganics, Minor, Metals 1983 - 2023
Inorganics, Minor, Non-metals 1992 - 2023
Microbiological 1983 - 2024
Nutrient 1983 - 2023
Organics, Other 1992 - 2023
Organics, PCBs 1992 - 1992
Organics, Pesticide 1992 - 1995
Physical 1983 - 2024
Radiochemical 1992 - 1995
Sediment 1988 - 2012
*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-MO
OrganizationFormalName USGS Missouri Water Science Center
MonitoringLocationIdentifier USGS-07018100
MonitoringLocationName Big River near Richwoods, MO
MonitoringLocationTypeName Stream
HUCEightDigitCode 07140104
DrainageAreaMeasure/MeasureValue 735
DrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 38.15961110000000
LongitudeMeasure -90.7060556000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue .5
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from Digital MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 522.53
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue .07
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System
VerticalCoordinateReferenceSystemDatumName NAVD88
CountryCode US
StateCode 29
CountyCode 099
ProviderName NWIS