Middle Valley 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

154.1 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 Middle Valley, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Middle Valley	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 Middle Valley compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Middle Valley, Tennessee	≈ 120–179 mg/L	3.2 ppt	🟠 Hard	reservoir
Soddy-Daisy, Tennessee	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
Red Bank, Tennessee	≈ 120–179 mg/L	4.3 ppt	🟠 Hard	reservoir
East Chattanooga, Tennessee	75.328 mg/L	6.5 ppt	🟡 Moderately Hard	reservoir
East Ridge, Tennessee	≈ 120–179 mg/L	6.9 ppt	🟠 Hard	reservoir

National Benchmark

How Middle Valley compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Middle Valley	≈ 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 Middle Valley's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 154.1 mg/LpH: 7.5

Middle Valley Utility supplies homes in the unincorporated community of Middle Valley, located in Hamilton County, Tennessee. This water comes from the Tennessee River reservoir system, a major artery in the Appalachian south watershed. While specific treatment plants aren't named, the water undergoes standard surface water processes, including coagulation, filtration, and disinfection, before reaching the 37343 ZIP code.

The water's character is shaped by the Cumberland Plateau's Pennsylvanian-age insoluble formations, like sandstones and shales, which offer dilution. However, the Mississippian Bangor Limestone layer contributes dissolved calcium and magnesium, a result of karst dissolution. This geological combination, typical for the Chattanooga area, results in moderately mineralized water.

Expect some scale buildup in appliances such as water heaters and dishwashers due to this moderate hardness, which can affect their efficiency and lifespan. You might notice reduced soap lathering, requiring a bit more detergent for laundry. Regularly descaling kettles with vinegar can help manage limescale. While a whole-house water softener isn't strictly necessary, it could be beneficial for those who notice spotting on fixtures or are heavy water users. The water is safe to drink, with a neutral pH of 7.5 and very low lead levels.

Geology & Source: Cumberland Plateau Pennsylvanian insoluble formations; Bangor Limestone imparts moderate hardness

Other Tennessee Water Reports

Soddy-Daisy

≈ 120–179 mg/L

🟠 Hard

Red Bank

≈ 120–179 mg/L

🟠 Hard

East Chattanooga

75.328 mg/L

🟡 Moderately Hard

East Ridge

≈ 120–179 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 Middle Valley's water safe to drink?

Yes. Middle Valley'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 Middle Valley?

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

The USA national average is 151 mg/L. Middle Valley (≈ 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 Middle Valley 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.