City water profile

Water hardness in Chandler

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

Utility-reported hardness

Not yet available

Check your provider and source →

State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 6
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.

Chandler City Of

AZ0407090 · Surface water · 247,328 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: 0.0014 mg/L
Action level: 0.015 mg/L

9% of the listed benchmark

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

Violation history (77)

Imported violation history for Chandler City Of
Rule	Status	Period
Nitrate	Resolved	Oct 1, 2024 to Dec 31, 2024
1,2,4-Trichlorobenzene	Resolved	Apr 1, 2024 to Jun 30, 2024
DICHLOROMETHANE	Resolved	Apr 1, 2024 to Jun 30, 2024
Vinyl chloride	Resolved	Apr 1, 2024 to Jun 30, 2024
trans-1,2-Dichloroethylene	Resolved	Apr 1, 2024 to Jun 30, 2024
1,2-Dichloroethane	Resolved	Apr 1, 2024 to Jun 30, 2024
1,1,1-Trichloroethane	Resolved	Apr 1, 2024 to Jun 30, 2024
1,2-Dichloropropane	Resolved	Apr 1, 2024 to Jun 30, 2024
1,1,2-Trichloroethane	Resolved	Apr 1, 2024 to Jun 30, 2024
Tetrachloroethylene	Resolved	Apr 1, 2024 to Jun 30, 2024
CHLOROBENZENE	Resolved	Apr 1, 2024 to Jun 30, 2024
Benzene	Resolved	Apr 1, 2024 to Jun 30, 2024
Ethylbenzene	Resolved	Apr 1, 2024 to Jun 30, 2024
o-Dichlorobenzene	Resolved	Apr 1, 2024 to Jun 30, 2024
Toluene	Resolved	Apr 1, 2024 to Jun 30, 2024
Carbon tetrachloride	Resolved	Apr 1, 2024 to Jun 30, 2024
cis-1,2-Dichloroethylene	Resolved	Apr 1, 2024 to Jun 30, 2024
1,1-Dichloroethylene	Resolved	Apr 1, 2024 to Jun 30, 2024
Styrene	Resolved	Apr 1, 2024 to Jun 30, 2024
Xylenes, Total	Resolved	Apr 1, 2024 to Jun 30, 2024
p-Dichlorobenzene	Resolved	Apr 1, 2024 to Jun 30, 2024
Trichloroethylene	Resolved	Apr 1, 2024 to Jun 30, 2024
Arsenic	Resolved	Jan 1, 2024 to Mar 31, 2024
Nitrate	Resolved	Apr 1, 2023 to Jun 30, 2023
Nitrate	Resolved	Apr 1, 2023 to Jun 30, 2023
Nitrate	Resolved	Apr 1, 2023 to Jun 30, 2023
Arsenic	Resolved	Apr 1, 2023 to Jun 30, 2023
Nitrate	Resolved	Apr 1, 2023 to Jun 30, 2023
Arsenic	Resolved	Apr 1, 2023 to Jun 30, 2023
Arsenic	Resolved	Apr 1, 2023 to Jun 30, 2023
DICHLOROMETHANE	Resolved	Jan 1, 2023 to Dec 31, 2023
o-Dichlorobenzene	Resolved	Jan 1, 2023 to Dec 31, 2023
trans-1,2-Dichloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
1,2-Dichloroethane	Resolved	Jan 1, 2023 to Dec 31, 2023
1,2-Dichloropropane	Resolved	Jan 1, 2023 to Dec 31, 2023
1,1,2-Trichloroethane	Resolved	Jan 1, 2023 to Dec 31, 2023
Tetrachloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
CHLOROBENZENE	Resolved	Jan 1, 2023 to Dec 31, 2023
Ethylbenzene	Resolved	Jan 1, 2023 to Dec 31, 2023
Styrene	Resolved	Jan 1, 2023 to Dec 31, 2023
1,1,1-Trichloroethane	Resolved	Jan 1, 2023 to Dec 31, 2023
Carbon tetrachloride	Resolved	Jan 1, 2023 to Dec 31, 2023
Trichloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
Benzene	Resolved	Jan 1, 2023 to Dec 31, 2023
Toluene	Resolved	Jan 1, 2023 to Dec 31, 2023
1,1-Dichloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
1,2,4-Trichlorobenzene	Resolved	Jan 1, 2023 to Dec 31, 2023
Xylenes, Total	Resolved	Jan 1, 2023 to Dec 31, 2023
Vinyl chloride	Resolved	Jan 1, 2023 to Dec 31, 2023
p-Dichlorobenzene	Resolved	Jan 1, 2023 to Dec 31, 2023
cis-1,2-Dichloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
1,2,4-Trichlorobenzene	Resolved	Jan 1, 2022 to Dec 31, 2022
p-Dichlorobenzene	Resolved	Jan 1, 2022 to Dec 31, 2022
1,1-Dichloroethylene	Resolved	Jan 1, 2022 to Dec 31, 2022
trans-1,2-Dichloroethylene	Resolved	Jan 1, 2022 to Dec 31, 2022
Carbon tetrachloride	Resolved	Jan 1, 2022 to Dec 31, 2022
1,2-Dichloropropane	Resolved	Jan 1, 2022 to Dec 31, 2022
Trichloroethylene	Resolved	Jan 1, 2022 to Dec 31, 2022
CHLOROBENZENE	Resolved	Jan 1, 2022 to Dec 31, 2022
Toluene	Resolved	Jan 1, 2022 to Dec 31, 2022
Ethylbenzene	Resolved	Jan 1, 2022 to Dec 31, 2022
Gross Alpha, Excl. Radon and U	Resolved	Jan 1, 2022 to Dec 31, 2022
Combined Uranium	Resolved	Jan 1, 2022 to Dec 31, 2022
Radium-226	Resolved	Jan 1, 2022 to Dec 31, 2022
Radium-228	Resolved	Jan 1, 2022 to Dec 31, 2022
1,1,1-Trichloroethane	Resolved	Jan 1, 2022 to Dec 31, 2022
o-Dichlorobenzene	Resolved	Jan 1, 2022 to Dec 31, 2022
Benzene	Resolved	Jan 1, 2022 to Dec 31, 2022
DICHLOROMETHANE	Resolved	Jan 1, 2022 to Dec 31, 2022
Styrene	Resolved	Jan 1, 2022 to Dec 31, 2022
1,2-Dichloroethane	Resolved	Jan 1, 2022 to Dec 31, 2022
Xylenes, Total	Resolved	Jan 1, 2022 to Dec 31, 2022
cis-1,2-Dichloroethylene	Resolved	Jan 1, 2022 to Dec 31, 2022
Tetrachloroethylene	Resolved	Jan 1, 2022 to Dec 31, 2022
Vinyl chloride	Resolved	Jan 1, 2022 to Dec 31, 2022
1,1,2-Trichloroethane	Resolved	Jan 1, 2022 to Dec 31, 2022
Combined Radium (-226 and -228)	Resolved	Jan 1, 2022 to Dec 31, 2022

Pima Utilities

AZ0407120 · Groundwater · 20,000 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: 0.01 mg/L
Action level: 0.015 mg/L

67% of the listed benchmark

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

Violation history (17)

Imported violation history for Pima Utilities
Rule	Status	Period
Lead and Copper Rule	Unaddressed	Oct 1, 2025
LEAD AND COPPER RULE REVISIONS	Unaddressed	Jul 2, 2025
Revised Total Coliform Rule	Resolved	Sep 1, 2024 to Sep 30, 2024
E. COLI	Unaddressed	Aug 22, 2024
Chlorine	Resolved	Aug 1, 2024 to Aug 31, 2024
Revised Total Coliform RuleHealth-based	Resolved	Aug 1, 2024 to Aug 31, 2024
Revised Total Coliform RuleHealth-based	Resolved	Jun 1, 2024 to Jun 30, 2024
Chlorine	Resolved	Jun 1, 2024 to Jun 30, 2024
Di(2-ethylhexyl) phthalate	Resolved	Jan 1, 2024 to Dec 31, 2024
Di(2-ethylhexyl) adipate	Resolved	Jan 1, 2024 to Dec 31, 2024
Di(2-ethylhexyl) adipate	Resolved	Jan 1, 2023 to Nov 1, 2023
Chromium	Resolved	Jan 1, 2023 to Dec 31, 2025
Di(2-ethylhexyl) phthalate	Resolved	Jan 1, 2023 to Nov 1, 2023
Di(2-ethylhexyl) adipate	Archived	Jul 1, 2021 to Sep 30, 2021
Di(2-ethylhexyl) phthalate	Resolved	Jul 1, 2021 to Sep 30, 2021
Di(2-ethylhexyl) adipate	Archived	Apr 1, 2021 to Jun 30, 2021
Di(2-ethylhexyl) phthalate	Archived	Apr 1, 2021 to Jun 30, 2021

Chandler Heights Citrus Irrigation Dist

AZ0407409 · Groundwater · 2,620 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: 0.0039 mg/L
Action level: 0.015 mg/L

26% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (6)

Imported violation history for Chandler Heights Citrus Irrigation Dist
Rule	Status	Period
Chlorine	Archived	Jan 1, 2026 to Jan 31, 2026
Consumer Confidence Rule	Unaddressed	Oct 2, 2025
LEAD AND COPPER RULE REVISIONS	Unaddressed	Jul 2, 2025
Consumer Confidence Rule	Unaddressed	Jul 1, 2025
Revised Total Coliform Rule	Resolved	Jun 1, 2024 to Jul 30, 2024
Revised Total Coliform Rule	Resolved	Jun 1, 2023 to Jun 30, 2023

Peekaboo Water Coop

AZ0407671 · Groundwater · 100 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 (1)

Imported violation history for Peekaboo Water Coop
Rule	Status	Period
Consumer Confidence Rule	Resolved	Oct 2, 2025 to Jun 29, 2025

Gilbert Rigg Well Coop

AZ0407903 · Groundwater · 95 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, 2022 to Dec 31, 2024

Violation history (1)

Imported violation history for Gilbert Rigg Well Coop
Rule	Status	Period
Consumer Confidence Rule	Unaddressed	Oct 2, 2025

Greenfield Ranchettes

AZ0407492 · Groundwater · 53 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 (2)

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: 0.005 mg/L
Action level: 0.015 mg/L

33% of the listed benchmark

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

Arsenic

EPA SDWIS reported health-based violation

Reported violation

Reported level: 0.012 MG/L
Maximum contaminant level: 0.01 MG/L

120% of the listed benchmark

Monitoring period: Apr 1, 2025 to Jun 30, 2025

Violation history (17)

Imported violation history for Greenfield Ranchettes
Rule	Status	Period
Revised Total Coliform Rule	Resolved	Jan 1, 2026 to Mar 9, 2026
Revised Total Coliform Rule	Unaddressed	Dec 1, 2025
Revised Total Coliform Rule	Unaddressed	Nov 1, 2025
Revised Total Coliform Rule	Resolved	Oct 1, 2025 to Oct 31, 2025
LEAD AND COPPER RULE REVISIONS	Unaddressed	Jul 2, 2025
ArsenicHealth-based	Resolved	Apr 1, 2025 to Jun 30, 2025
ArsenicHealth-based	Resolved	Jan 1, 2025 to Mar 31, 2025
Lead and Copper Rule	Resolved	Jan 1, 2025 to Jun 14, 2025
ArsenicHealth-based	Resolved	Oct 1, 2024 to Dec 31, 2024
ArsenicHealth-based	Resolved	Jul 1, 2024 to Sep 30, 2024
Consumer Confidence Rule	Resolved	Oct 2, 2023 to Jul 1, 2024
Consumer Confidence Rule	Resolved	Jul 1, 2023 to Jul 1, 2024
Consumer Confidence Rule	Resolved	Oct 2, 2022 to Oct 15, 2021
Lead and Copper Rule	Resolved	Oct 1, 2022 to Nov 12, 2024
Revised Total Coliform Rule	Resolved	Jun 1, 2022 to Jul 25, 2022
Revised Total Coliform Rule	Resolved	Feb 1, 2022 to Mar 11, 2022
Revised Total Coliform Rule	Resolved	Aug 1, 2021 to Sep 17, 2021

City summary

What the indexed records say

Chandler has 6 published ZIP profiles across Maricopa County. The regional-evidence median is 56 PPM. The city does not meet the stricter comparison standard.

The 48.5–56 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

Soft6 ZIPs

Moderately hard0 ZIPs

Hard0 ZIPs

Very hard0 ZIPs

6 of 6 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: 13 miles
Profiles with evidence: 6/6

Confidence labels

High: 0Moderate: 1Low: 5

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 Chandler

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.