Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Sun Valley, AZ 86029
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Navajo County.
1 active health-based record(s) across possible systems
- Largest possible serving system
- Sun Valley Utilities
- Source water
- Groundwater
- County
- Navajo 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
Review needed
1 active health-based record
Measurements by utility
Each result belongs to a specific system.
Utility match
1 system
Serves 287 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.
Sun Valley Utilities
AZ0409001 · Groundwater · 287 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
1 reported active health-based record(s) for this system
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
- 0.007 mg/L
- Action level
- 0.015 mg/L
47% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
TTHM
EPA SDWIS reported health-based violation
- Reported level
- 0.093 MG/L
- Maximum contaminant level
- 0.08 MG/L
116% of the listed benchmark
Monitoring period: Apr 1, 2025 to Jun 30, 2025
Violation history (30)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Unaddressed | Jan 1, 2026 |
| TTHM | Resolved | Oct 1, 2025 to Dec 31, 2025 |
| Total Haloacetic Acids (HAA5) | Resolved | Oct 1, 2025 to Dec 31, 2025 |
| Chlorine | Archived | Oct 1, 2025 to Oct 31, 2025 |
| LEAD AND COPPER RULE REVISIONS | Unaddressed | Jul 2, 2025 |
| Consumer Confidence Rule | Resolved | Jul 1, 2025 to Oct 21, 2025 |
| TTHMHealth-based | Resolved | Apr 1, 2025 to Jun 30, 2025 |
| Revised Total Coliform Rule | Resolved | Dec 1, 2024 to Apr 21, 2025 |
| Public Notice | Resolved | Feb 16, 2024 to Jun 13, 2024 |
| Public Notice | Resolved | May 21, 2023 to Jun 13, 2024 |
| Public Notice | Resolved | Apr 27, 2023 to Jun 5, 2023 |
| Lead and Copper Rule | Resolved | Jan 1, 2023 to Apr 3, 2024 |
| TTHM | Resolved | Dec 30, 2022 to Apr 3, 2024 |
| Consumer Confidence Rule | Resolved | Oct 2, 2022 to Nov 4, 2022 |
| Lead and Copper Rule | Resolved | Oct 1, 2022 to Jun 5, 2023 |
| Public Notice | Resolved | May 25, 2022 to Aug 4, 2022 |
| TTHM | Resolved | Apr 1, 2022 to Apr 3, 2024 |
| Revised Total Coliform Rule | Resolved | Mar 1, 2022 to May 16, 2022 |
| TTHMHealth-based | Resolved | Jan 1, 2022 to Mar 31, 2022 |
| Total Haloacetic Acids (HAA5) | Resolved | Nov 1, 2021 to Jan 31, 2022 |
| TTHM | Resolved | Nov 1, 2021 to Jan 31, 2022 |
| TTHMHealth-based | Resolved | Oct 1, 2021 to Dec 31, 2021 |
| Consumer Confidence Rule | Resolved | Jul 1, 2021 to Sep 27, 2021 |
| Chlorine | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| TTHM | Resolved | May 1, 2021 to Jul 31, 2021 |
| Total Haloacetic Acids (HAA5) | Resolved | May 1, 2021 to Jul 31, 2021 |
| Chlorine | Resolved | Apr 1, 2021 to Jun 30, 2021 |
| TTHM | Resolved | Feb 1, 2021 to Apr 30, 2021 |
| Total Haloacetic Acids (HAA5) | Resolved | Feb 1, 2021 to Apr 30, 2021 |
| Groundwater RuleHealth-based | Unaddressed | Dec 12, 2018 |
Hardness meter
What does nearby environmental evidence show?
105
PPM as CaCO₃
Moderately Hard
PPM
105
GPG
6.1
Regional environmental evidence
USGS hardness classification scale
105 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
105
mg/L as CaCO₃ equivalent
Grains per gallon
6.1
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
1
Nearest site
0.4 mi
Observation range
Aug 2, 2017–Aug 2, 2017
Regional evidence confidence
Low
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: A-18-22 09DDC1 (Well).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 86029 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Sun Valley median
105 PPM
About the same1 indexed ZIP readings · Range 105–105 PPM
Arizona median
64 PPM
41 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
An active health-based record is present. Follow the utility's current notice and public-health instructions.
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 Sun Valley
Is tap water safe in Sun Valley?+
EPA ECHO reports 1 active health-based violation among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
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.