Youngsville Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
groundwater
pH Level
7.2
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
234 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: See methodology section below · 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 | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Youngsville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Youngsville, Louisiana | ≈ 120–179 mg/L | 12.9 ppt | 🟠 Hard | groundwater |
| Broussard, Louisiana | ≈ 120–179 mg/L | 11.4 ppt | 🟠 Hard | groundwater |
| Lafayette, Louisiana | ≈ 120–179 mg/L | 0 ppt | 🟠 Hard | groundwater |
| Abbeville, Louisiana | ≈ 120–179 mg/L | 3.7 ppt | 🟠 Hard | groundwater |
| New Iberia, Louisiana | ≈ 120–179 mg/L | 0 ppt | 🟠 Hard | groundwater |
National Benchmark
How Youngsville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Youngsville | ≈ 120–179 mg/L | 🟠 Moderate |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
Bring Scarsdale-quality water to your Youngsville home
Shop water softeners on Amazon.com →
What Makes Youngsville's Water Unique?
Local geology and source profile
The City of Youngsville Purchase Water Supply provides water to residents in Lafayette Parish, Louisiana. This utility purchases treated water from other providers and distributes it to homes and businesses, primarily within the 70592 ZIP code. The ultimate source for this supply is groundwater drawn from aquifers in the Mississippi Embayment region. While specific treatment plant details aren't publicly listed, the Lafayette Parish contacts confirm groundwater as the origin, with no surface water bodies like rivers or reservoirs directly feeding the system.
Youngsville's water originates from deep within the Evangeline Aquifer, a significant groundwater source located in Tertiary-age coastal plain sediments. This geological setting includes formations like the Cockfield Formation, composed of sands, clays, and limestones. As groundwater slowly percolates through these mineral-rich layers, it dissolves calcium and magnesium. This natural process, driven by the Cenozoic geology of the region, results in water that is characteristically hard, containing elevated levels of these dissolved minerals.
Homeowners in Youngsville may notice scale buildup in pipes, appliances like water heaters and dishwashers, and even on faucet aerators and showerheads. This mineral accumulation can reduce efficiency and shorten the lifespan of these items. To combat these effects and improve how soap lathers, regular descaling with vinegar or the installation of a whole-house water softener is often recommended. Despite its hardness, the Louisiana Department of Health has graded the system with an A, indicating excellent compliance and safety for all residents.
Geology & Source: Mississippi Embayment aquifer system; Tertiary/Quaternary coastal plain deposits and Evangeline Aquifer; limestone, dolomite, calcareous sands lead to high hardness
Other Louisiana Water Reports
Report an Issue
Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.
All reports are reviewed by our team. Thank you for supporting data quality!
Frequently Asked Questions
Is Youngsville's water safe to drink?
Do I need a water softener in Youngsville?
How does Youngsville compare to the USA average?
Data Sources & Methodology
Water quality data for Youngsville is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
Water Hardness
Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.
pH
Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.
TDS — Total Dissolved Solids
Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.
PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances
EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.
Lead
Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.
Appliance Lifespan
Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.