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Water Hardness in 83656

Notus, Idaho · Canyon County

150 PPM
8.8 GPG
Moderately Hard
0Soft60120180300+
Verified — Annual Water Quality Report

Dataset updated March 9, 2026Matched to 9 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 9 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis
3 verified treated-water sources
9 matched systems total for this ZIP; 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 Serving 83656

These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.

9 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.
Nampa City Of
ID3140080
Moderately Hard
150 PPMgroundwater100,200 servedVerified — Annual Water Quality Report
Source water: 196 PPM
Caldwell City Of
ID3140013
Moderately Hard
150 PPMgroundwater74,000 servedVerified — Annual Water Quality Report
Source water: 196 PPM
Middleton City Of
ID3140074
Moderately Hard
150 PPMgroundwater13,190 servedVerified — Annual Water Quality Report
Source water: 110 PPM
Notus City Of
ID3140083
Moderately Hard
134 PPMgroundwater539 servedHigh Confidence — USGS Monitoring
Midvale Water System
ID3440007
Moderately Hard
134 PPMgroundwater144 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

836071508362615083676152836051508366015083644150836511508362826483655138836871508366910883619114

What This Means For You

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

Moderately Hard Water

Your water is moderately hard. You're likely seeing scale buildup on fixtures, spotty dishes, and may notice dry skin or hair. A water softener or conditioner can help.

Recommended Products

Water Hardness Test Kit
Our PickVarify (150 Strips)Also GreatJNW Direct (150 Strips)
Salt-Free Water Conditioner
Our PickSpringWell Salt-Free Cartridge
Salt-Based Water Softener
Our PickAFWFilters Fleck 5600SXT 48KAlso GreatWhirlpool WHES40E 40KAlso GreatAFWFilters 64K GrainAlso GreatAFWFilters Iron Pro 2 64KAlso GreatSpringWell Filter + Softener Combo
Shower Head Filter
Our PickWeddell DuoAlso GreatAquaBliss SF100Also GreatSprite Pure 7-SettingAlso GreatAqua Earth 20-Stage

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | How to Test Your Water

Know your water hardness?

If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Notus, ID (83656).

Submit Your Data

Frequently Asked Questions

Is the water hard in Notus, ID (83656)?

The average water hardness in 83656 is 150 PPM (8.8 GPG), which is classified as moderately hard.

Do I need a water softener in 83656?

With hardness of 150 PPM, a water softener is worth considering for homes in 83656.

Is hard water in 83656 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 83656?

Zip code 83656 in Notus, Idaho is served by 9 water systems.

Learn More About Your Water

Do You Need a Water Softener? (Based on Your Water Hardness)

A data-driven guide to help you decide if a water softener is worth the investment based on your actual water hardness level.

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Salt-Based vs Salt-Free Water Softener: Which Do You Need?

Salt-based softeners remove hardness minerals. Salt-free conditioners prevent scale but don't soften. Here's how to choose based on your water hardness level.

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Best Shower Filters for Hard Water (2026 Reviews)

We tested KDF, Vitamin C, and carbon shower filters for hard water. Here are the filters that actually reduce mineral buildup on hair and skin.

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