Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Marana, AZ 85653
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Pima County.
2 active health-based record(s) across possible systems
- Largest possible serving system
- Marana Municipal - Marana
- Source water
- Groundwater
- County
- Pima 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
2 active health-based records
Measurements by utility
Each result belongs to a specific system.
Utility match
10 systems
Serves 15,162 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.
Marana Municipal - Marana
AZ0410150 · Groundwater · 15,162 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
- 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 (2)
| Rule | Status | Period |
|---|---|---|
| Chlorine | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| Chlorine | Resolved | Jul 1, 2021 to Sep 30, 2021 |
Marana Municipal - Picture Rocks
AZ0410092 · Groundwater · 5,278 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
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (1)
| Rule | Status | Period |
|---|---|---|
| Chlorine | Resolved | Jul 1, 2021 to Sep 30, 2021 |
Marana Municipal - Hartman Vistas
AZ0410329 · Groundwater · 5,248 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
- 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)
| Rule | Status | Period |
|---|---|---|
| Chlorine | Resolved | Jul 1, 2021 to Sep 30, 2021 |
Marana Municipal - Airline Lambert
AZ0410138 · Groundwater · 4,568 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
- 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)
| Rule | Status | Period |
|---|---|---|
| Chlorine | Resolved | Jul 1, 2021 to Sep 30, 2021 |
Marana Dwid - Derringer
AZ0410139 · Groundwater · 1,950 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
- 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 (38)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Jan 1, 2025 to Nov 12, 2025 |
| LEAD AND COPPER RULE REVISIONS | Resolved | Oct 17, 2024 to Nov 27, 2024 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Resolved | Oct 17, 2024 to Nov 27, 2024 |
| Lead and Copper Rule | Resolved | Oct 1, 2024 to Nov 18, 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 | Oct 2, 2022 to Aug 29, 2023 |
| Public Notice | Resolved | Oct 2, 2022 to Aug 29, 2023 |
| Public Notice | Resolved | Apr 2, 2022 to Aug 29, 2023 |
| Consumer Confidence Rule | Resolved | Oct 2, 2021 to Oct 5, 2021 |
| Lead and Copper Rule | Resolved | Sep 5, 2021 to Dec 31, 2021 |
| cis-1,2-Dichloroethylene | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Xylenes, Total | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| DICHLOROMETHANE | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| o-Dichlorobenzene | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| p-Dichlorobenzene | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Vinyl chloride | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| trans-1,2-Dichloroethylene | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| 1,1,1-Trichloroethane | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| 1,2-Dichloropropane | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Trichloroethylene | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| 1,1,2-Trichloroethane | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Benzene | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Ethylbenzene | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Styrene | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| CHLOROBENZENE | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| 1,2,4-Trichlorobenzene | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Nitrate | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Consumer Confidence Rule | Resolved | Jul 1, 2021 to Oct 5, 2021 |
| 1,1-Dichloroethylene | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| 1,2-Dichloroethane | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Tetrachloroethylene | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Toluene | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Carbon tetrachloride | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Revised Total Coliform Rule | Resolved | May 1, 2021 to May 31, 2021 |
| Groundwater RuleHealth-based | Resolved | Apr 9, 2021 to Apr 23, 2021 |
| Chlorine | Resolved | Apr 1, 2021 to Jun 30, 2021 |
| Nitrate | Resolved | Jan 1, 2021 to Mar 31, 2021 |
Marana Municipal - Silverbell Gateway
AZ0410501 · Groundwater · 750 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
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2024 to Jun 30, 2024
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Marana Dwid - Culver
AZ0410070 · Groundwater · 709 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
2 reported active health-based record(s) for this system
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
- 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 (15)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Jan 1, 2025 to Oct 12, 2025 |
| LEAD AND COPPER RULE REVISIONS | Resolved | Oct 17, 2024 to Dec 9, 2024 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Resolved | Oct 17, 2024 to Dec 9, 2024 |
| Lead and Copper Rule | Resolved | Oct 1, 2024 to Nov 18, 2024 |
| TTHM | Resolved | Jul 1, 2024 to Sep 30, 2024 |
| Total Haloacetic Acids (HAA5) | Resolved | Jul 1, 2024 to Sep 30, 2024 |
| Consumer Confidence Rule | Resolved | Oct 2, 2021 to Oct 5, 2021 |
| Lead and Copper Rule | Resolved | Sep 5, 2021 to Dec 31, 2021 |
| TTHM | Resolved | Aug 1, 2021 to Jul 31, 2022 |
| Total Haloacetic Acids (HAA5) | Resolved | Aug 1, 2021 to Jul 31, 2022 |
| Consumer Confidence Rule | Resolved | Jul 1, 2021 to Aug 26, 2021 |
| Revised Total Coliform Rule | Resolved | May 1, 2021 to May 31, 2021 |
| Groundwater RuleHealth-based | Unaddressed | Apr 9, 2021 |
| Groundwater RuleHealth-based | Unaddressed | Apr 9, 2021 |
| Chlorine | Resolved | Apr 1, 2021 to Jun 30, 2021 |
Marana Municipal - Tortolita Mountain
AZ0410505 · 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
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2026 to Jun 30, 2026
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Rancho Tierra Blanca Poa
AZ0410272 · Groundwater · 126 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
- 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)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Resolved | Oct 2, 2021 to Dec 29, 2021 |
Marana Municipal - Palo Verde
AZ0410136 · Groundwater · 118 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
- 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)
| Rule | Status | Period |
|---|---|---|
| Chlorine | Resolved | Jul 1, 2021 to Sep 30, 2021 |
Hardness meter
What does nearby environmental evidence show?
209.5
PPM as CaCO₃
Very Hard
PPM
209.5
GPG
12.3
Regional environmental evidence
USGS hardness classification scale
209.5 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
209.5
mg/L as CaCO₃ equivalent
Grains per gallon
12.3
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
8
Nearest site
16.4 mi
Observation range
Jan 11, 2016–Aug 16, 2016
Regional evidence confidence
Low
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: D-13-12 04DCD (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 85653 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Marana median
210 PPM
About the same2 indexed ZIP readings · Range 209.5–209.5 PPM
Arizona median
64 PPM
146 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 →Nearby indexed reports
More local profiles in Marana
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Marana
Is tap water safe in Marana?+
EPA ECHO reports 2 active health-based violations 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.