Weekly Data Report

The Lake Pontchartrain Basin Foundation began an EPA-approved intensive water quality monitoring program in January 2001, in an effort to educate the public about water quality and to lend evidence for the retraction of swimming advisories along the shore of Lake Pontchartrain. As of 2006, Lake Pontchartrain was removed from Louisiana DEQ’s Impaired Water Bodies list.

Ten historically recreational sites are sampled on a weekly basis. Several water quality parameters, including fecal coliform bacteria levels, are tested.  The weekly sites are usually tested on Tuesday mornings, and the data is published on Fridays. Our reporting times are caused by the time to conduct bacterial analysis.

You can find more information on the site locations by visiting our map tour.

New for this year, LPBF’s sampling results are also now viewable on the Swim Guide App, available for both Apple and Android devices.  Now you can check on water quality data for the sites around Lake Pontchartrain, and thousands of other locations, from a single application.

How was the water quality in 2017? You can read about water quality at a glance by following the link.


This Week’s Numbers

Rainfall Runoff Warning

The Lake’s water quality is directly related to rainfall runoff. If it has rained in your area in the past 3 days, the runoff could pollute the Lake.

NOTE: Click here or on the image below to view the Weekly Water Quality Monitoring Sites interactive webmap.

What Do The Numbers Mean?

The following criteria are based on the Louisiana Department of Environmental Quality:

Check out the Office of Public Health’s web page on: Health/Fish Consumption/Advisories for Mercury.