Youngsville Water Hardness & Quality Report (2026)
Water Hardness
8.8 grains per gallon
Source
river
pH Level
8.1
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
378.8 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Youngsville, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Youngsville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.6 yrs | 8.5 yrs | -46% |
| Washing Machine | 8.1 yrs | 12 yrs | -33% |
| Water Heater | 9.6 yrs | 15 yrs | -36% |
Regional Water Comparison
How Youngsville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Youngsville, Louisiana | 150 mg/L | 12.9 ppt | 🟠 Hard | river |
| Broussard, Louisiana | 127 mg/L | 11.4 ppt | 🟠 Hard | river |
| Lafayette, Louisiana | 88.5 mg/L | 8.8 ppt | 🟡 Moderately Hard | river |
| Abbeville, Louisiana | 69 mg/L | 7.5 ppt | 🟡 Moderately Hard | river |
| New Iberia, Louisiana | 71 mg/L | 7.6 ppt | 🟡 Moderately Hard | river |
National Benchmark
How Youngsville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Youngsville | 150 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Youngsville's Water Unique?
Local geology and source profile
Youngsville, Louisiana, in Lafayette Parish — a Lafayette Parish city adjacent to Lafayette and Broussard in the heart of Acadiana in south-central Louisiana — receives its water from the Lafayette Utilities System (LUS) or a local utility, drawing from the Vermilion River and the alluvial aquifer system through the south-central Louisiana distribution.
The hard 150 mg/L hardness and TDS of 378.8 mg/L reflect the Lafayette Parish alluvial supply's hard calcareous character — the Pleistocene Prairie Formation and Holocene Mississippi Delta alluvium are both calcareous sediments deposited during multiple sea-level cycles on the Louisiana coastal plain (compare Lafayette LA: 148/374 in Lafayette Parish comparable; Broussard LA: 152/382 in Lafayette Parish comparable; Youngsville consistent hard from the same Lafayette Parish Vermilion River Pleistocene alluvial supply). The Vermilion watershed at Lafayette — Pleistocene Prairie Formation (slightly calcareous — primary hardness contributor), Holocene Delta alluvium (calcareous — secondary contributor), and Holocene swamp deposits (calcareous — TDS contributor).
At 150 mg/L with TDS 379, Youngsville's water is hard — scale builds in appliances over months. Quarterly descaling is appropriate. The PFAS level of 12.9 ppt is very high — a certified drinking water filter with PFAS removal is strongly recommended — the Lafayette Parish south-central Louisiana petrochemical corridor and agricultural operations contribute to Youngsville's very elevated PFAS readings.
Geology & Source: Youngsville in Lafayette draws from the Lafayette Utilities System on the Vermilion River (Lafayette Parish, south-central Louisiana) — the Vermilion watershed at Lafayette drains Pleistocene Prairie Formation (slightly calcareous) and Holocene Mississippi Delta alluvium (calcareous) — Louisiana Lafayette Parish Vermilion River Pleistocene alluvial supply produces hard water at 150 mg/L with TDS 378.8 mg/L.