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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 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-LA >  USGS-300638089484300

LAKE PONTCHARTRAIN AT CHEF MENTEUR (SITE 18C3) (USGS-300638089484300) site data in the Water Quality Portal

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

This lake, reservoir, impoundment site, maintained by the USGS Louisiana Water Science Center (identifier USGS-LA), has the name "LAKE PONTCHARTRAIN AT CHEF MENTEUR (SITE 18C3)" and has the identifier USGS-300638089484300. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)08090202. See more details of this site the the USGS NWIS Web page for this site.

This site is located in Orleans Parish County, Louisiana at 30.11075387000000 degrees latitude and -89.8120074000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from MAP." and the accuracy is Unknown Unknown.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-300638089484300" 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*
Inorganics, Major, Non-metals 1993 - 1993
Physical 1993 - 1993
*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-LA
OrganizationFormalName USGS Louisiana Water Science Center
MonitoringLocationIdentifier USGS-300638089484300
MonitoringLocationName LAKE PONTCHARTRAIN AT CHEF MENTEUR (SITE 18C3)
MonitoringLocationTypeName Lake, Reservoir, Impoundment
HUCEightDigitCode 08090202
LatitudeMeasure 30.11075387000000
LongitudeMeasure -89.8120074000000
HorizontalAccuracyMeasure/MeasureValue Unknown
HorizontalAccuracyMeasure/MeasureUnitCode Unknown
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 22
CountyCode 071
ProviderName NWIS