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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-1094

Main Pass (LADEQWPD-1094) site data in the Water Quality Portal

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

This estuary site, maintained by the LDEQ/Watershed Planning Division (identifier LADEQWPD), has the name "Main Pass" and has the identifier LADEQWPD-1094. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)08090100.

This site is located in Plaquemines Parish County, Louisiana at 29.2002273 degrees latitude and -89.2631100 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-1094" 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 2001 - 2001
Inorganics, Minor, Non-metals 2001 - 2001
Physical 2001 - 2001
*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-1094
MonitoringLocationName Main Pass
MonitoringLocationTypeName Estuary
MonitoringLocationDescriptionText 1.3 miles North of Pilottown, 4.2 miles Southwest of Spanish Island, 7.2 miles South of Orchard
HUCEightDigitCode 08090100
LatitudeMeasure 29.2002273
LongitudeMeasure -89.2631100
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 0
VerticalMeasure/MeasureUnitCode ft
VerticalCoordinateReferenceSystemDatumName Unknown
CountryCode US
StateCode 22
CountyCode 075
ProviderName STORET