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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 >  STORET >  LADEQWPD >  LADEQWPD-139

Lake Pontchartrain at Causeway Crossover #1 (LADEQWPD-139) site data in the Water Quality Portal

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

This lake site, maintained by the LDEQ/Watershed Planning Division (identifier LADEQWPD), has the name "Lake Pontchartrain at Causeway Crossover #1" and has the identifier LADEQWPD-139. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)08090202.

This site is located in St. Tammany Parish County, Louisiana at 30.3079735 degrees latitude and -90.1036900 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available. This site is at an elevation of 0 ft No vertical location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "LADEQWPD-139" 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, Minor, Metals 1986 - 1998
Inorganics, Minor, Non-metals 1986 - 1998
Physical 1986 - 1998
*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 LADEQWPD
OrganizationFormalName LDEQ/Watershed Planning Division
MonitoringLocationIdentifier LADEQWPD-139
MonitoringLocationName Lake Pontchartrain at Causeway Crossover #1
MonitoringLocationTypeName Lake
MonitoringLocationDescriptionText At Crossover Number 1 on causeway bridge, 3.9 miles south of toll gate on north shore of Lake Pontchartrain.
HUCEightDigitCode 08090202
LatitudeMeasure 30.3079735
LongitudeMeasure -90.1036900
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 0
VerticalMeasure/MeasureUnitCode ft
VerticalCoordinateReferenceSystemDatumName Unknown
CountryCode US
StateCode 22
CountyCode 103
ProviderName STORET