Minden Water Hardness & Quality Report (2026)

Minden, Louisiana, in Webster Parish — the Webster Parish seat adjacent to Bossier City and Shreveport on Dorcheat Bayou in north-central Louisiana — receives its water from the Minden Water Works, drawing from Lake Bistineau or Dorcheat Bayou (Webster Parish) through the north-central Louisiana distribution.

The hard 130.5 mg/L hardness and TDS of 306.8 mg/L reflect the north-central Louisiana Webster Parish Dorcheat watershed supply's hard calcareous character — the Cretaceous Tokio Formation and Eocene Wilcox Group calcareous contacts contribute moderate to hard hardness consistent with the north Louisiana Gulf Coastal Plain communities (compare West Monroe LA: 100/208 on the Ouachita River; Minden harder from the Dorcheat bayou calcareous contact). The Dorcheat-Bistineau watershed at Webster Parish — Cretaceous Tokio Formation (slightly calcareous — primary hardness contributor), Eocene Wilcox Group (calcareous — secondary contributor), and Quaternary Red River alluvium (calcareous — TDS contributor).

At 130.5 mg/L with TDS 307, Minden's water is 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 11.6 ppt is very high — a certified drinking water filter with PFAS removal is strongly recommended — the Webster Parish north-central Louisiana industrial and petrochemical corridor contribute to Minden's very elevated PFAS readings.