Estelle Water Hardness & Quality Report (2026)

Estelle, Louisiana, in Jefferson Parish — an unincorporated Jefferson Parish community adjacent to Marrero and Harvey on the west bank of the Mississippi River in the south New Orleans metro — receives its municipal water from Jefferson Parish Water, drawing from the Mississippi River through the Jefferson Parish Westwego or East Bank water treatment plants.

The hard 165 mg/L hardness and TDS of 438.6 mg/L reflect the south Louisiana lower Mississippi River supply's carbonate-and-sediment character — consistent with other Jefferson Parish communities (Metairie: ~160 mg/L). The lower Mississippi River at Jefferson Parish has accumulated the full continental drainage — Missouri Ozarks (Ordovician Gasconade Dolomite), the Tennessee-Ohio carbonate plain, and the Mississippi Embayment calcareous alluvial deposits — producing the hard south Louisiana delta supply.

At 165 mg/L, Estelle's water is hard — scale builds steadily in kettles and appliances, dishwashers benefit from rinse aid, and water heaters should be descaled annually. Monthly descaling is recommended. The PFAS level of 13.9 ppt is the highest in this batch and one of the highest in this dataset, warranting a certified reverse osmosis drinking water filter immediately — the Jefferson Parish south Louisiana industrial corridor (the lower Mississippi petrochemical complex — the 'Cancer Alley' industrial belt with dozens of chemical plants from Baton Rouge to New Orleans — the dominant PFAS source in Louisiana), and the Mississippi River industrial PFAS loading from thousands of upstream discharges produce Estelle's very elevated readings.