City water profile

Water hardness in Idaho Falls

Find official utility reports, understand hardness, and check the water system serving your home in Idaho Falls, Idaho.

Utility-reported hardness

Not yet available

Check your provider and source →

State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 5
Active health records: 0

Your tap water

What does the utility report?

Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.

Utility hardness unavailable in this index

Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.

Find an official utility report →

Convert a hardness result →Test your tap →

Match the name on your water bill

Your utility’s measurements and compliance records

These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.

EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.

Idaho Falls City Of

ID7100039 · Groundwater · 69,450 people served system-wide

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

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.003 mg/L
Action level: 0.015 mg/L

20% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Nur Water Assn

ID7100061 · Groundwater · 60 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.003 mg/L
Action level: 0.015 mg/L

20% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (7)

Imported violation history for Nur Water Assn
Rule	Status	Period
Revised Total Coliform RuleHealth-based	Archived	Jul 1, 2025 to Jul 31, 2025
Revised Total Coliform RuleHealth-based	Archived	Jun 1, 2024 to Jun 30, 2024
Nitrate	Resolved	Jan 1, 2024 to Dec 31, 2024
Nitrate	Resolved	Jan 1, 2024 to Dec 31, 2024
E. COLI	Resolved	Aug 1, 2023 to Aug 31, 2023
Revised Total Coliform RuleHealth-based	Resolved	Jul 1, 2023 to Jul 31, 2023
E. COLI	Resolved	May 1, 2023 to May 31, 2023

Rancho Via Well Users Assn Inc

ID7100149 · Groundwater · 40 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2021 to Dec 31, 2023

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Dj Park Well

ID7100200 · Groundwater · 35 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.002 mg/L
Action level: 0.015 mg/L

13% of the listed benchmark

Monitoring period: Jan 1, 2019 to Dec 31, 2021

Violation history (1)

Imported violation history for Dj Park Well
Rule	Status	Period
Lead and Copper Rule	Unaddressed	Oct 1, 2024

Northside Estates Well

ID7100060 · Groundwater · 30 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.002 mg/L
Action level: 0.015 mg/L

13% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (1)

Imported violation history for Northside Estates Well
Rule	Status	Period
LEAD AND COPPER RULE REVISIONS	Resolved	Jul 2, 2025 to Oct 21, 2025

City summary

What the indexed records say

Idaho Falls has 3 published ZIP profiles across Bonneville County. The regional-evidence median is 144 PPM. The city does not meet the stricter comparison standard.

The 144–144 PPM range shows how much the available ZIP estimates vary within the city label. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs

Moderately hard0 ZIPs

Hard1 ZIP

Very hard0 ZIPs

1 of 3 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: 20.7 miles
Profiles with evidence: 1/3

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Nov 8, 2016 to Nov 7, 2019.

ZIP directory

Water reports in Idaho Falls

Open a ZIP for site-level provenance and measurements.

ZIP code

83401

No estimate

—

Nearest site: — mi
Confidence: —

View full ZIP evidence →

ZIP code

83402

Hard

144 PPM

Nearest site: 20.7 mi
Confidence: Low

View full ZIP evidence →

ZIP code

83404

No estimate

—

Nearest site: — mi
Confidence: —

View full ZIP evidence →

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. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Idaho communities

Ammon

Bonneville County

— No median

Iona

Bonneville County

— No median

Ucon

Bonneville County

— No median

Victor

Teton County

139 PPM median

Caldwell

Canyon County

138 PPM median

Parma

Canyon County

151 PPM median

Search all 67 Idaho cities →

Questions people ask

About water in Idaho Falls

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

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.