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Latest projections on saltwater impact have St. Bernard off the list

The latest projections by the Corps says that increased flows on the Mississippi and the augmentation of the underwater sill have played a part in slowing the wedge.

NEW ORLEANS — St. Bernard Parish is no longer expected to be impacted by the saltwater wedge which had been making its way up the Mississippi River since the summer.

The latest projections by the U.S. Army Corps of Engineers says that increased flows on the Mississippi and the augmentation of the underwater sill have played a part in slowing the wedge.

Last week the Corps removed Algiers and Gretna from the list of areas anticipated to be impacted by the wedge.

In addition to the news on St. Bernard, Belle Chasse and Dalcour had their expected impact dates pushed back with continued hopes that increased flows could keep their from being any impact.

The latest forecasts include:

Boothville: Current impacted

Port Sulphur: Currently impacted

Pointe A La Hache: Currently impacted

Belle Chasse: Nov. 13 (previously Oct. 27)

Dalcour: Nov. 18 (previously Nov. 1)

St. Bernard: Not anticipated to experience chloride levels exceeding 250 ppm

New Orleans Algiers: Not anticipated to experience chloride levels exceeding 250 ppm

Gretna: Not anticipated to experience chloride levels exceeding 250 ppm

West Jefferson: Not anticipated to experience chloride levels exceeding 250 ppm

New Orleans Carrollton: Not anticipated to experience chloride levels exceeding 250 ppm

East Jefferson: Not anticipated to experience chloride levels exceeding 250 ppm

Latest saltwater wedge forecast released by USACE: The U.S. Army Corps of Engineers, New Orleans District released today...

Posted by US Army Corps of Engineers, New Orleans District on Thursday, October 19, 2023

The Corps began barging water to the Port Sulphur and Pointe A La Hache treatment facilities to blend with water from the intakes to bring the chloride down to treatable levels. To date, USACE has delivered more than 23 million gallons of water. USACE has also mobilized Reverse Osmosis Units to support processing at water treatment facilities impacted by saltwater intrusion.

    

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