Bayou Boeuf Water Hardness & Quality Report (2026)

Bayou Boeuf, Louisiana, in Lafourche Parish — a Lafourche Parish community adjacent to Thibodaux and Lockport in the southeast Louisiana bayou delta — receives its water from the Lafourche Parish Government utilities, drawing from the Intracoastal Waterway and Mississippi River derived surface water (Lafourche Parish) through the southeast Louisiana distribution.

The moderately hard 145.5 mg/L hardness and TDS of 361.3 mg/L (TDS elevated relative to hardness — reflecting the Gulf Coastal alluvial supply's slightly saline Gulf of Mexico margin influence at the Lafourche bayou delta position) reflect the southeast Louisiana Lafourche Parish supply's moderate calcareous character. The Lafourche Parish surface water draws from the Mississippi River-Intracoastal system — Mississippi River (calcareous — primary hardness contributor from the Great Plains drainage), Quaternary Gulf Coastal Plain alluvium (slightly calcareous), and slight Gulf Coast brackish influence (elevated TDS contributor) at the bayou delta position.

At 145.5 mg/L, Bayou Boeuf's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 12.6 ppt warrants a certified reverse osmosis drinking water filter — the Southeast Louisiana petrochemical industry corridor and Naval Air Station Joint Reserve Base New Orleans (Jefferson Parish — AFFF) contribute to Bayou Boeuf's very elevated readings.