80% of our raw water supply (approximately 4 billion gallons per year) comes from Bayou Lafourche. The remaining 20% (approximately 1 billion gallons per year) comes from the Gulf Intracoastal Waterway and the Bayou Black Reservoir.

The Intracoastal can no longer be considered a reliable source of fresh water. Every year brings increased salinity levels above 250ppm. At present there are more than 100 days/year of greater than 250ppm.

Terrebonne Parish currently buys about 80% of its raw water supply from the Bayou Lafourche Fresh Water District (BLFWD)