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Water Hardness in Plymouth, UT

Utah · 1 zip codes · 3 matched water systems

200 PPM
11.7 GPG
Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 346 PPM

Dataset updated March 9, 20263 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Brigham City Water System
UTAH02004
Water source: groundwater
Serves: 20,540
USGS environmental estimate: 190 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 3 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
1 verified treated-water source
3 matched systems total for this city; treated-water reports are prioritized when available.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. 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 Plymouth

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

3 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.
Brigham City Water System
UTAH02004
Hard
200 PPMgroundwater20,540 servedVerified — Annual Water Quality Report
Source water: 190 PPM
Tremonton City
UTAH02011
Very Hard
578 PPMgroundwater13,000 servedHigh Confidence — USGS Monitoring
Plymouth Town Water System
UTAH02013
Very Hard
281 PPMgroundwater457 servedHigh Confidence — USGS Monitoring

Zip Codes in Plymouth, UT

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 Plymouth, UT.

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Frequently Asked Questions

How hard is the water in Plymouth, UT?

The citywide weighted average water hardness in Plymouth, UT is 346 PPM (20.2 GPG), classified as very hard. This is based on 3 matched water systems. The gauge highlights Brigham City Water System, a verified treated-water system, because individual systems can differ from the citywide average.

Do I need a water softener in Plymouth, UT?

With a citywide average hardness of 346 PPM, a water softener is recommended for homes in Plymouth. Confirm your tap reading before sizing equipment.

Is hard water in Plymouth, UT 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 Plymouth, UT?

Plymouth, Utah is served by 3 matched water systems across 1 zip code.

Learn More About Your Water