How does Sevierville's water compare to the national average?

The USA national average is 151 mg/L. Sevierville (≈ 120–179 mg/L) is 1 mg/L softer than average.

Sevierville Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

neutral = 7.0

Lead

0.008 mg/L

✓ Below action level

TDS

589.3 mg/L

Est. Daily Cost

$0.40

energy & soap waste

Source: See methodology section below · Updated 2026

hard~120–179 mg/LHard · est.

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 Sevierville, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Sevierville	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 Sevierville compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Sevierville, Tennessee	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
Seymour, Tennessee	≈ 120–179 mg/L	7.6 ppt	🟠 Hard	reservoir
Knoxville, Tennessee	≈ 120–179 mg/L	3.7 ppt	🟠 Hard	reservoir
Maryville, Tennessee	46 mg/L	0 ppt	🟢 Soft	reservoir
Morristown, Tennessee	≈ 120–179 mg/L	10.3 ppt	🟠 Hard	reservoir

National Benchmark

How Sevierville compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Sevierville	≈ 120–179 mg/L	🟠 Moderate
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Sevierville's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 589.3 mg/LpH: 6

The Sevierville Water System serves Sevierville, Tennessee, located in Sevier County in east-central Tennessee. The utility operates from P.O. Box 5500, Sevierville, TN 37864, with primary contact at 865-453-1736 and 24/7 emergency service at 865-774-3757. The system draws from both surface water and groundwater sources typical of the region, with treatment facilities designed to manage the variable mineral content across its service area.

The Sevierville supply area sits at the intersection of two major hydrogeological zones: the Eastern Highland Rim aquifer to the west and the Cumberland Plateau to the east. Bedrock geology is dominated by Paleozoic-age limestone and dolomite formations. The Eastern Highland Rim aquifer, characterized by rapid water transit through less mineral-rich sediments, yields relatively soft water in some zones; conversely, the Cumberland Plateau's thicker limestone and mineral-laden strata produce harder water.

Homeowners in Sevierville may notice that their appliances, such as dishwashers and washing machines, show reduced efficiency and shortened lifespan without periodic descaling. To mitigate this, a water softener is recommended, particularly for households with high hot-water demand or sensitive plumbing. Regular maintenance of water-using appliances will extend their operational life. Residents should also consult the Sevierville Water System's annual Consumer Confidence Report for detailed pH, lead/copper compliance data, treatment process information, and any contaminant detections, including PFAS.

Geology & Source: Eastern Highland Rim - Cumberland Plateau transition zone; Paleozoic limestone and dolomite formations; softer groundwater from less mineral-rich sediments

Other Tennessee Water Reports

Seymour

≈ 120–179 mg/L

🟠 Hard

Knoxville

≈ 120–179 mg/L

🟠 Hard

Maryville

46 mg/L

🟢 Soft

Morristown

≈ 120–179 mg/L

🟠 Hard

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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 Sevierville's water safe to drink?

Yes. Sevierville's water meets all federal safety standards. The hardness is ≈ 120–179 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Sevierville?

At ≈ 120–179 mg/L (Hard), Sevierville's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 20%.

How does Sevierville compare to the USA average?

The USA national average is 151 mg/L. Sevierville (≈ 120–179 mg/L) is 1 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Sevierville is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.

Estimated

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.

Estimated

Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.

Estimated

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.

Measured

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.

Modelled

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.

Calculated

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.