Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Cibola, AZ 85328
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for La Paz County.
Historical measurement record needs context
- Largest possible serving system
- Cibola Water Improvement District
- Source water
- Surface water
- County
- La Paz County
- Profile updated
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 →At a glance
What the current records say
EPA quarter 2026Q2
All possible systems
No active flag
0 active health-based records
Measurements by utility
Each result belongs to a specific system.
Utility match
1 system
Serves 197 people system-wide
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.
Cibola Water Improvement District
AZ0415123 · Surface water · 197 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
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2023
TTHM
EPA SDWIS reported health-based violation
- Reported level
- 0.09 MG/L
- Maximum contaminant level
- 0.08 MG/L
113% of the listed benchmark
Monitoring period: Apr 1, 2024 to Jun 30, 2024
Violation history (107)
| Rule | Status | Period |
|---|---|---|
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Feb 1, 2026 to Feb 28, 2026 |
| Revised Total Coliform Rule | Resolved | Feb 1, 2026 to Feb 28, 2026 |
| Public Notice | Resolved | Jan 31, 2026 to Feb 26, 2026 |
| Public Notice | Resolved | Jan 31, 2026 to Feb 26, 2026 |
| Surface Water Treatment Rule | Resolved | Jan 1, 2026 to Jan 31, 2026 |
| Total Haloacetic Acids (HAA5) | Archived | Jan 1, 2026 to Mar 31, 2026 |
| TTHM | Archived | Jan 1, 2026 to Mar 31, 2026 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Jan 1, 2026 to Jan 31, 2026 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Dec 1, 2025 to Dec 31, 2025 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Dec 1, 2025 to Dec 31, 2025 |
| Surface Water Treatment Rule | Resolved | Dec 1, 2025 to Dec 31, 2025 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Dec 1, 2025 to Dec 31, 2025 |
| Public Notice | Resolved | Nov 15, 2025 to Mar 27, 2026 |
| Public Notice | Resolved | Nov 13, 2025 to Feb 26, 2026 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Nov 1, 2025 to Nov 30, 2025 |
| Surface Water Treatment Rule | Resolved | Nov 1, 2025 to Nov 30, 2025 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Nov 1, 2025 to Nov 30, 2025 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Nov 1, 2025 to Nov 30, 2025 |
| Public Notice | Resolved | Oct 23, 2025 to Feb 26, 2026 |
| Total Haloacetic Acids (HAA5) | Archived | Oct 1, 2025 to Dec 31, 2025 |
| Chlorine | Resolved | Oct 1, 2025 to Oct 31, 2025 |
| Lead and Copper Rule | Unaddressed | Oct 1, 2025 |
| TTHM | Archived | Oct 1, 2025 to Dec 31, 2025 |
| Surface Water Treatment Rule | Resolved | Oct 1, 2025 to Oct 31, 2025 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Oct 1, 2025 to Oct 31, 2025 |
| Surface Water Treatment Rule | Resolved | Sep 1, 2025 to Sep 30, 2025 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Sep 1, 2025 to Sep 30, 2025 |
| Public Notice | Resolved | Aug 7, 2025 to Feb 26, 2026 |
| Surface Water Treatment Rule | Resolved | Aug 1, 2025 to Aug 31, 2025 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Aug 1, 2025 to Aug 31, 2025 |
| Revised Total Coliform Rule | Resolved | Jul 1, 2025 to Sep 11, 2025 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Jul 1, 2025 to Jul 31, 2025 |
| Surface Water Treatment Rule | Resolved | Jul 1, 2025 to Jul 31, 2025 |
| Revised Total Coliform Rule | Resolved | Jun 1, 2025 to Sep 11, 2025 |
| Public Notice | Resolved | May 2, 2025 to Feb 26, 2026 |
| Public Notice | Resolved | Apr 2, 2025 to Mar 27, 2026 |
| Chlorine | Resolved | Apr 1, 2025 to Apr 30, 2025 |
| Surface Water Treatment Rule | Resolved | Apr 1, 2025 to Apr 30, 2025 |
| Surface Water Treatment Rule | Resolved | Apr 1, 2025 to Apr 30, 2025 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Mar 1, 2025 to Mar 31, 2025 |
| Surface Water Treatment Rule | Resolved | Mar 1, 2025 to Mar 31, 2025 |
| Chlorine | Resolved | Mar 1, 2025 to Mar 31, 2025 |
| Public Notice | Resolved | Dec 20, 2024 to Mar 27, 2026 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Resolved | Oct 17, 2024 to Mar 12, 2026 |
| LEAD AND COPPER RULE REVISIONS | Resolved | Oct 17, 2024 to Mar 12, 2026 |
| Lead and Copper Rule | Unaddressed | Oct 1, 2024 |
| Revised Total Coliform Rule | Resolved | Oct 1, 2024 to Nov 15, 2024 |
| Surface Water Treatment Rule | Resolved | Oct 1, 2024 to Oct 31, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Oct 1, 2024 to Oct 31, 2024 |
| TTHM | Addressed | Sep 29, 2024 |
| Revised Total Coliform Rule | Resolved | Sep 1, 2024 to Sep 30, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Sep 1, 2024 to Sep 30, 2024 |
| Surface Water Treatment Rule | Resolved | Sep 1, 2024 to Sep 30, 2024 |
| Surface Water Treatment Rule | Resolved | Jul 1, 2024 to Jul 31, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Jul 1, 2024 to Jul 31, 2024 |
| Total Haloacetic Acids (HAA5) | Resolved | Jul 1, 2024 to Sep 30, 2024 |
| TTHM | Resolved | Jul 1, 2024 to Sep 30, 2024 |
| Public Notice | Resolved | Jun 30, 2024 to Feb 26, 2026 |
| TTHM | Addressed | Jun 30, 2024 |
| Revised Total Coliform Rule | Resolved | Jun 1, 2024 to Jun 30, 2024 |
| Surface Water Treatment Rule | Resolved | Jun 1, 2024 to Jun 30, 2024 |
| Revised Total Coliform Rule | Resolved | May 1, 2024 to Jun 20, 2024 |
| Public Notice | Resolved | Apr 26, 2024 to Jul 1, 2024 |
| Public Notice | Resolved | Apr 26, 2024 to Jul 1, 2024 |
| Revised Total Coliform Rule | Resolved | Apr 1, 2024 to May 24, 2024 |
| Surface Water Treatment Rule | Resolved | Apr 1, 2024 to Apr 30, 2024 |
| TTHM | Resolved | Apr 1, 2024 to Jun 30, 2024 |
| TTHMHealth-based | Archived | Apr 1, 2024 to Jun 30, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Apr 1, 2024 to Apr 30, 2024 |
| Total Haloacetic Acids (HAA5) | Resolved | Apr 1, 2024 to Jun 30, 2024 |
| TTHM | Addressed | Mar 31, 2024 |
| Public Notice | Resolved | Mar 3, 2024 to Feb 26, 2026 |
| Surface Water Treatment Rule | Resolved | Mar 1, 2024 to Mar 31, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Mar 1, 2024 to Mar 31, 2024 |
| Chlorine | Resolved | Mar 1, 2024 to Mar 31, 2024 |
| Public Notice | Resolved | Feb 23, 2024 to Jul 1, 2024 |
| Surface Water Treatment Rule | Resolved | Feb 1, 2024 to Feb 29, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Feb 1, 2024 to Feb 29, 2024 |
| Lead and Copper Rule | Resolved | Jan 1, 2024 to Oct 23, 2025 |
| TTHMHealth-based | Archived | Jan 1, 2024 to Mar 31, 2024 |
| Public Notice | Resolved | Dec 3, 2023 to Dec 19, 2023 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | Dec 1, 2023 to Dec 31, 2023 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Nov 1, 2023 to Nov 30, 2023 |
| Chlorine | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| TTHMHealth-based | Archived | Oct 1, 2023 to Dec 31, 2023 |
| TTHMHealth-based | Archived | Jul 1, 2023 to Sep 30, 2023 |
| Chlorine | Resolved | Jul 1, 2023 to Sep 30, 2023 |
| Revised Total Coliform Rule | Resolved | Apr 1, 2023 to May 25, 2023 |
| TTHMHealth-based | Archived | Apr 1, 2023 to Jun 30, 2023 |
| Revised Total Coliform Rule | Resolved | Feb 1, 2023 to Apr 13, 2023 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Feb 1, 2023 to Feb 28, 2023 |
| Surface Water Treatment Rule | Resolved | Feb 1, 2023 to Feb 28, 2023 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Jan 1, 2023 to Jan 31, 2023 |
| Chlorine | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| TTHM | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| Total Haloacetic Acids (HAA5) | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| Surface Water Treatment Rule | Resolved | Jan 1, 2023 to Jan 31, 2023 |
| Lead and Copper Rule | Resolved | Nov 10, 2022 to Feb 9, 2023 |
| Chlorine | Resolved | Oct 1, 2022 to Dec 31, 2022 |
| Public Notice | Resolved | Oct 1, 2022 to Feb 26, 2026 |
| Chlorine | Resolved | Jul 1, 2022 to Sep 30, 2022 |
| Surface Water Treatment Rule | Resolved | Feb 1, 2022 to Feb 28, 2022 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Feb 1, 2022 to Feb 28, 2022 |
| TTHMHealth-based | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Lead and Copper Rule | Resolved | Jul 1, 2021 to Jul 22, 2021 |
| TTHMHealth-based | Resolved | Apr 1, 2021 to Jun 30, 2021 |
| TTHMHealth-based | Resolved | Jan 1, 2021 to Mar 31, 2021 |
Hardness meter
What does nearby environmental evidence show?
285
PPM as CaCO₃
Very Hard
PPM
285
GPG
16.7
Regional environmental evidence
USGS hardness classification scale
285 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
285
mg/L as CaCO₃ equivalent
Grains per gallon
16.7
1 GPG ≈ 17.1 PPM
How to use regional evidence
These samples describe nearby environmental water. They cannot establish whether your tap water is soft or hard. Use a utility result or a tap test for appliance settings and treatment sizing.
USGS sites used
4
Nearest site
9.3 mi
Observation range
May 24, 2021–May 26, 2021
Regional evidence confidence
Moderate
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: COLORADO RIVER BELOW OXBOW BRIDGE (Stream).USGS source documentation ↗Evidence tier: Regional environmental evidence. This value is not used as proof of the serving utility's treated-water hardness.
Regional context
Is 85328 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Cibola median
285 PPM
About the same1 indexed ZIP readings · Range 285–285 PPM
Arizona median
64 PPM
221 PPM higher213 indexed ZIP readings · Range 33–2680 PPM
Evidence-first next steps
Confirm the problem before choosing treatment
This profile can help you ask the right question. It cannot select equipment for a property without a current result from the serving utility or the tap.
Confirm the serving system
ZIP boundaries and utility service areas do not perfectly match. Verify the system on a water bill before relying on system-wide records.
Read the current utility report
Use the current Consumer Confidence Report for treated-water results and official notices.
Find an official utility report →Test for the decision you face
Use a tap hardness test before sizing a softener. For health concerns, use a certified laboratory and the correct sampling protocol.
Convert your hardness test result →Frequently asked
Water questions for Cibola
Is tap water safe in Cibola?+
EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.
How hard is the water?+
Utility-reported hardness is unavailable in this index. Regional samples do not establish tap-water hardness. Ask your provider or test your tap.
Do I need a water softener?+
Confirm hardness at your tap and consider actual scale or spotting before choosing treatment. Regional environmental values cannot determine whether you need a softener. A softener addresses hardness, not every contaminant.