Is tap water safe in Nephi?

EPA SDWIS shows no active health-based violation in this profile's reporting window. That is not the same as proving every contaminant is absent, and federal data can lag state and utility records.

How hard is the water in Nephi, UT?

Nearby USGS observations produce an estimate of 356 ppm (20.8 grains per gallon), classified as very hard. This is not a tap measurement.

Do I need a water softener in ZIP code 84648?

At 356 ppm, a correctly sized whole-house softener can reduce scale buildup and hard-water spotting. Treatment for hardness does not remove all health-related contaminants.

City water profile

Nephi water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Nephi, Utah.

Median indexed hardness

356PPM

One indexed ZIP

Range 356–356 PPM

State comparison: 8 PPM below
State hardness rank: #29 of 55
Matched utilities: 1
Active health records: 0

City summary

What the indexed records say

Nephi has 1 published ZIP profile across Juab County. The indexed median is 356 PPM, compared with 364 PPM across Utah.

Among the 55 Utahcities with an indexed median, Nephi ranks #29from highest to lowest. Across all 66 state ZIP profiles, available estimates run from 257to 686.5 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs

Moderately hard0 ZIPs

Hard0 ZIPs

Very hard1 ZIP

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: 2.1 miles
Profiles with evidence: 1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Jan 25, 2016 to Sep 3, 2025.

ZIP directory

Water reports in Nephi

Open a ZIP for site-level provenance and measurements.

ZIP code

84648

Very Hard

356 PPM

Nearest site: 2.1 mi
Confidence: Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Nephi City

PWSID UTAH12003

Groundwater

System population served: 7,122
Last reported: Jun 17, 2026

A municipal system, in-state city, and served county all agree with this Census ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

Record	System	Period	Status
Xylenes, Total	UTAH12003	Jan 1, 2022	Resolved
DICHLOROMETHANE	UTAH12003	Jan 1, 2022	Resolved
o-Dichlorobenzene	UTAH12003	Jan 1, 2022	Resolved
p-Dichlorobenzene	UTAH12003	Jan 1, 2022	Resolved
Vinyl chloride	UTAH12003	Jan 1, 2022	Resolved
1,1,1-Trichloroethane	UTAH12003	Jan 1, 2022	Resolved
Carbon tetrachloride	UTAH12003	Jan 1, 2022	Resolved
1,2-Dichloropropane	UTAH12003	Jan 1, 2022	Resolved
1,1,2-Trichloroethane	UTAH12003	Jan 1, 2022	Resolved
Tetrachloroethylene	UTAH12003	Jan 1, 2022	Resolved

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Utah communities

Fairview

Sanpete County

357 PPM median

Gunnison

Sanpete County

357 PPM median

Fountain Green

Sanpete County

358 PPM median

Aurora

Sevier County

359 PPM median

Wellsville

Cache County

361 PPM median

Ephraim

Sanpete County

344 PPM median

Search all 55 Utah cities →

Questions people ask

About water in Nephi

Is the water hard?

The indexed city median is 356 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.