Ruston Water Hardness & Quality Report (2026)
Water Hardness
9.6 grains per gallon
Source
groundwater
pH Level
7
neutral = 7.0
Lead
0.009 mg/L
✓ Below action level
TDS
35 mg/L
Est. Daily Cost
$0.44
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 Ruston, your appliances are currently losing 22% efficiency due to mineral buildup.
| Appliance | In Ruston | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.6 yrs | 8.5 yrs | -22% |
| Washing Machine | 9.4 yrs | 12 yrs | -22% |
| Water Heater | 11.7 yrs | 15 yrs | -22% |
Regional Water Comparison
How Ruston compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Ruston, Louisiana | 165 mg/L | 0 ppt | 🟠 Hard | groundwater |
| Claiborne, Louisiana | ≈ 0–60 mg/L | 9.8 ppt | 🟢 Soft | river |
| West Monroe, Louisiana | 100 mg/L | 0 ppt | 🟡 Moderately Hard | groundwater |
| Monroe, Louisiana | ≈ 120–179 mg/L | 13.8 ppt | 🟠 Hard | river |
| Minden, Louisiana | 130.5 mg/L | 0 ppt | 🟠 Hard | groundwater |
National Benchmark
How Ruston compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Ruston | 165 mg/L | 🟠 Moderate |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes Ruston's Water Unique?
Local geology and source profile
The City of Ruston Water System serves Lincoln Parish, Louisiana, operating approximately 180 miles of water distribution lines and 9,500 meter connections. The utility draws from regional groundwater aquifer systems and can be contacted at WaterUtilities@ruston.org or 318-251-8611. The Louisiana Department of Health's 2022 Water Grade report (PWSID: LA1061017) assigned the system an 82% grade, confirming compliance with federal water quality standards. Annual Consumer Confidence Reports provide detailed constituent and treatment data.
Ruston's water supply originates from Cretaceous and Tertiary-age sedimentary aquifers underlying Lincoln Parish. These formations consist of limestone, sandstone, and clay layers typical of northern Louisiana's geology. The aquifer system has experienced a water-level decline of approximately 175 feet since 1920, primarily due to industrial pumpage near El Dorado, Arkansas, and Monroe, Louisiana, indicating reliance on deep aquifer reserves. This geological setting produces water with moderate mineral content characteristic of the region's sedimentary aquifer systems.
Ruston's moderately mineralized groundwater may produce scale buildup in appliances, water heaters, and plumbing fixtures over time. Periodic descaling of fixtures and consideration of point-of-use treatment for specific applications are common practices in this region. The utility's 2022 water grade of 82% reflects successful treatment and compliance with federal standards. Specific data on pH, lead and copper levels, and PFAS contamination are available through the utility's Consumer Confidence Report or by contacting the City of Ruston Water Utilities directly at the address above.
Geology & Source: Cretaceous and Tertiary sedimentary aquifers underlying Lincoln Parish — limestone, sandstone, and clay layers contribute moderate mineralization; water levels have declined ~175 ft since 1920 due to industrial pumpage
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Frequently Asked Questions
Is Ruston's water safe to drink?
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How does Ruston compare to the USA average?
Data Sources & Methodology
Water quality data for Ruston 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.