City water profile

Water hardness in Coolidge

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

Utility-reported hardness

Not yet available

Check your provider and source →

State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 3
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.

Arizona Training Program

AZ0411037 · Groundwater · 470 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 (33)

Imported violation history for Arizona Training Program
Rule	Status	Period
Revised Total Coliform Rule	Resolved	Jan 1, 2026 to Jan 31, 2026
Lead and Copper Rule	Unaddressed	Jan 1, 2026
Public Notice	Unaddressed	Oct 18, 2025
Consumer Confidence Rule	Resolved	Oct 2, 2025 to Oct 31, 2025
Public Notice	Resolved	Aug 28, 2025 to Oct 10, 2025
Revised Total Coliform Rule	Resolved	Jul 1, 2025 to Jul 31, 2025
Public Notice	Unaddressed	Dec 20, 2024
Revised Total Coliform Rule	Resolved	Nov 1, 2024 to Nov 30, 2024
LEAD AND COPPER RULE REVISIONSHealth-based	Resolved	Oct 17, 2024 to Nov 7, 2024
LEAD AND COPPER RULE REVISIONS	Resolved	Oct 17, 2024 to Nov 7, 2024
Revised Total Coliform Rule	Resolved	Jul 1, 2024 to Jul 31, 2024
Lead and Copper Rule	Resolved	Jan 1, 2024 to Feb 11, 2025
Revised Total Coliform Rule	Resolved	Dec 1, 2023 to Dec 31, 2023
Consumer Confidence Rule	Resolved	Oct 2, 2023 to Aug 8, 2024
Chlorine	Resolved	Oct 1, 2023 to Dec 31, 2023
Consumer Confidence Rule	Resolved	Jul 1, 2023 to Jun 12, 2024
Chlorine	Resolved	Jul 1, 2023 to Sep 30, 2023
Revised Total Coliform Rule	Resolved	May 1, 2023 to Jul 13, 2023
Chlorine	Resolved	Apr 1, 2023 to Jun 30, 2023
Public Notice	Resolved	Feb 25, 2023 to Jul 1, 2024
Public Notice	Resolved	Feb 17, 2023 to Mar 24, 2023
Public Notice	Resolved	Feb 10, 2023 to Aug 8, 2024
Public Notice	Resolved	Feb 10, 2023 to Mar 24, 2023
Chlorine	Resolved	Jan 1, 2023 to Mar 31, 2023
Nitrate	Resolved	Jan 1, 2023 to Dec 31, 2023
Revised Total Coliform RuleHealth-based	Resolved	Nov 16, 2022 to Apr 9, 2024
E. COLI	Resolved	Oct 21, 2022 to Apr 18, 2024
Consumer Confidence Rule	Resolved	Oct 2, 2022 to Aug 8, 2024
Chlorine	Resolved	Oct 1, 2022 to Dec 31, 2022
Consumer Confidence Rule	Resolved	Jul 1, 2022 to Jul 20, 2022
Public Notice	Resolved	May 26, 2022 to Jul 1, 2024
Consumer Confidence Rule	Resolved	Oct 2, 2021 to Nov 10, 2021
Nitrate	Resolved	Jan 1, 2021 to Mar 31, 2021

Whispering Wind Mobile Home Park

AZ0411365 · Groundwater · 200 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, 2021 to Dec 31, 2023

Violation history (11)

Imported violation history for Whispering Wind Mobile Home Park
Rule	Status	Period
Consumer Confidence Rule	Unaddressed	Oct 2, 2025
Consumer Confidence Rule	Unaddressed	Jul 1, 2025
LEAD AND COPPER RULE REVISIONS	Resolved	Oct 17, 2024 to Nov 25, 2024
LEAD AND COPPER RULE REVISIONSHealth-based	Resolved	Oct 17, 2024 to Nov 25, 2024
Revised Total Coliform Rule	Resolved	Aug 1, 2024 to Sep 11, 2024
Total Haloacetic Acids (HAA5)	Resolved	Jan 1, 2023 to Nov 5, 2025
TTHM	Resolved	Jan 1, 2023 to Nov 5, 2025
Consumer Confidence Rule	Resolved	Oct 2, 2022 to Aug 24, 2023
Consumer Confidence Rule	Resolved	Jul 1, 2022 to Aug 24, 2023
Revised Total Coliform RuleHealth-based	Resolved	Jan 1, 2022 to Mar 10, 2022
E. COLI	Resolved	Dec 14, 2021 to Jan 26, 2022

Signal Peak Water Company

AZ0411079 · Groundwater · 99 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: 7.0e-4 mg/L
Action level: 0.015 mg/L

5% of the listed benchmark

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

Violation history (11)

Imported violation history for Signal Peak Water Company
Rule	Status	Period
Revised Total Coliform Rule	Unaddressed	Mar 1, 2026
E. COLI	Resolved	Jan 12, 2026 to Mar 26, 2026
Chlorine	Archived	Jan 1, 2026 to Jan 31, 2026
Revised Total Coliform Rule	Resolved	Sep 1, 2024 to Oct 11, 2024
TTHM	Resolved	Jul 1, 2024 to Sep 30, 2024
Total Haloacetic Acids (HAA5)	Resolved	Jul 1, 2024 to Sep 30, 2024
Revised Total Coliform Rule	Resolved	Jun 1, 2024 to Jul 24, 2024
Chlorine	Resolved	Feb 1, 2024 to Feb 29, 2024
Revised Total Coliform Rule	Resolved	Feb 1, 2024 to Mar 18, 2024
Revised Total Coliform Rule	Resolved	Aug 1, 2023 to Feb 27, 2024
Revised Total Coliform Rule	Resolved	Apr 1, 2022 to May 30, 2022

City summary

What the indexed records say

Coolidge has 1 published ZIP profile across Pinal County. No qualifying nearby hardness observation is available for the city.

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 hard0 ZIPs

0 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: — miles
Profiles with evidence: 0/1

Confidence labels

High: 0Moderate: 0Low: 0

Observation window: unavailable to unavailable.

ZIP directory

Water reports in Coolidge

Open a ZIP for site-level provenance and measurements.

ZIP code

85128

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

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Questions people ask

About water in Coolidge

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.