How does White House's water compare to the national average?

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

White House Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

7.5

neutral = 7.0

Lead

0.001 mg/L

✓ Below action level

TDS

148.7 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 White House, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In White House	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 White House compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ White House, Tennessee	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
Goodlettsville, Tennessee	≈ 120–179 mg/L	6.9 ppt	🟠 Hard	reservoir
Hendersonville, Tennessee	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
Portland, Tennessee	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
Gallatin, Tennessee	140 mg/L	0 ppt	🟠 Hard	reservoir

National Benchmark

How White House compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ White House	≈ 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 White House home

Shop water softeners on Amazon.com →

Shop Now

What Makes White House's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 148.7 mg/LpH: 7.5

White House Utility District draws its water from Old Hickory Lake, a reservoir fed by the Cumberland River. This surface water is treated at a facility off Rockland Road in Hendersonville, serving thousands of residents across White House and surrounding communities like Cross Plains and Greenbrier. The utility adheres to EPA Consumer Confidence Report standards, publishing annual water quality data. The watershed, part of the Highland Rim, flows through bedrock rich in limestone and dolomite.

These Ordovician-age carbonate rock formations are characteristic of the region's karst geology. As water moves through these soluble rocks and soils, it picks up significant amounts of dissolved minerals, primarily calcium and magnesium. This natural process is why water supplies across much of middle Tennessee, including White House, are typically hard.

Mineral buildup from this hard water can affect appliances, potentially reducing their efficiency and lifespan. Homeowners might notice reduced lathering from soaps and detergents, spots on dishes, or stiff fabrics. Installing a water softener is often recommended to combat scale accumulation in water heaters, dishwashers, and plumbing. While White House Utility District regularly tests for contaminants, residents concerned about specific compounds like TTHMs or radium should consult the utility's official annual CCR.

Geology & Source: Old Hickory Lake; Ordovician limestone and dolomite formations; moderate to high hardness

Other Tennessee Water Reports

Goodlettsville

≈ 120–179 mg/L

🟠 Hard

Hendersonville

≈ 120–179 mg/L

🟠 Hard

Portland

≈ 120–179 mg/L

🟠 Hard

Gallatin

140 mg/L

🟠 Hard

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 White House's water safe to drink?

Yes. White House'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 White House?

At ≈ 120–179 mg/L (Hard), White House'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 White House compare to the USA average?

The USA national average is 151 mg/L. White House (≈ 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 White House 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.