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Water Hardness in Mount Juliet, TN

Tennessee · 1 zip codes · 5 matched water systems

234 PPM
13.7 GPG
Hard
0Soft60120180300+
Estimated — Nearby Data

Dataset updated March 9, 20265 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

Source context

How this city reading is built

This city reading is a weighted rollup across 5 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
5 estimated sources
This city reading needs local confirmation before equipment sizing or purchase decisions.
Water source profile
Primarily surface water
Surface-water hardness can shift with reservoirs, runoff, season, and treatment. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.

Water Systems in Mount Juliet

These systems are matched to Mount Juliet, TN. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

5 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
West Wilson Utility District
TN0000743
Hard
234 PPMsurface water86,978 servedEstimated — Nearby Data
Lebanon Water System
TN0000393
Hard
234 PPMsurface water60,669 servedEstimated — Nearby Data
Wilson Co Water & Wastewater
TN0000790
Hard
234 PPMsurface water22,680 servedEstimated — County Avg
Gladeville Utility District
TN0000264
Hard
234 PPMsurface water19,813 servedEstimated — Nearby Data
Laguardo Utility District
TN0000394
Hard
234 PPMsurface water15,595 servedEstimated — Nearby Data

Zip Codes in Mount Juliet, TN

What This Means For You

Recommendations are based on the displayed hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

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If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Mount Juliet, TN.

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Frequently Asked Questions

How hard is the water in Mount Juliet, TN?

The citywide weighted average water hardness in Mount Juliet, TN is 234 PPM (13.7 GPG), classified as hard. This is based on 5 matched water systems.

Do I need a water softener in Mount Juliet, TN?

With a citywide average hardness of 234 PPM, a water softener is recommended for homes in Mount Juliet. Confirm your tap reading before sizing equipment.

Is hard water in Mount Juliet, TN safe to drink?

Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.

How many water systems serve Mount Juliet, TN?

Mount Juliet, Tennessee is served by 5 matched water systems across 1 zip code.

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