New Orleans Declares Federal Emergency as Water Supply Threatened by Saltwater

On September 27, 2023, President Joe Biden approved an emergency declaration for parts of Louisiana because a saltwater wedge threatens New Orleans' and nearby towns' water supply.

Louisiana Governor John Bel Edwards requested this action. Edward's' request comes after New Orleans' mayor LaToya Cantrell issued an emergency declaration for the city on Friday, urging residents not to use the water.

Why Is New Orleans' Water Supply Threatened?

The historic low water level in the Mississippi River allows salt from the Gulf of Mexico to move into the river. As saltwater and freshwater mix, the whole water supply becomes contaminated.

This is a severe public health threat because when the salt level is high enough, the body cannot process it. Instead, people develop hypertension. Older adults, individuals on dialysis and those with high blood pressure are most at risk. State officials urge residents not to use machinery requiring water, like washing machines, because the salt can rust out their parts.