Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Parker, AZ 85344
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for La Paz County.
1 active health-based record(s) across possible systems
- Largest possible serving system
- Epcor - Lakeside
- Source water
- Surface water + Groundwater
- 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
Review needed
1 active health-based record
Measurements by utility
Each result belongs to a specific system.
Utility match
7 systems
Serves 1,775 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.
Epcor - Lakeside
AZ0415010 · Surface water · 1,775 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 (3)
| Rule | Status | Period |
|---|---|---|
| Public Notice | Resolved | Jul 2, 2021 to Sep 28, 2021 |
| Public Notice | Resolved | Jul 2, 2021 to Sep 28, 2021 |
| Lead and Copper Rule | Resolved | Jan 1, 2021 to Feb 16, 2021 |
Epcor - Moovalya Keys
AZ0415006 · Surface water · 1,298 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
- 0.0062 mg/L
- Action level
- 0.015 mg/L
41% of the listed benchmark
Monitoring period: Jan 1, 2021 to Dec 31, 2023
Copper (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 1.62 mg/L
- Action level
- 1.3 mg/L
125% of the listed benchmark
Monitoring period: Jan 1, 2013 to Dec 31, 2015
Violation history (4)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Oct 1, 2023 to Jan 9, 2024 |
| Public Notice | Resolved | Jul 2, 2021 to Sep 10, 2021 |
| Public Notice | Resolved | Jul 2, 2021 to Sep 10, 2021 |
| Lead and Copper Rule | Resolved | Jan 1, 2021 to Feb 16, 2021 |
Epcor - Holiday Harbor
AZ0415058 · Surface water · 559 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, 2023
Violation history (9)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Oct 1, 2023 to Feb 8, 2024 |
| TTHM | Resolved | Nov 1, 2021 to Jan 31, 2022 |
| Total Haloacetic Acids (HAA5) | Resolved | Nov 1, 2021 to Jan 31, 2022 |
| Lead and Copper Rule | Resolved | Oct 1, 2021 to Oct 21, 2021 |
| TTHM | Resolved | Oct 1, 2021 to Dec 31, 2021 |
| Total Haloacetic Acids (HAA5) | Resolved | Oct 1, 2021 to Dec 31, 2021 |
| Public Notice | Resolved | Jul 2, 2021 to Sep 28, 2021 |
| Public Notice | Resolved | Jul 2, 2021 to Sep 28, 2021 |
| Lead and Copper Rule | Resolved | Jan 1, 2021 to Feb 16, 2021 |
Epcor - Marina Village
AZ0415011 · Surface water · 528 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, 2023
Violation history (4)
| Rule | Status | Period |
|---|---|---|
| TTHM | Unaddressed | Dec 30, 2024 |
| Lead and Copper Rule | Resolved | Oct 1, 2021 to Oct 13, 2021 |
| Public Notice | Resolved | Jul 2, 2021 to Jun 30, 2021 |
| Lead and Copper Rule | Resolved | Jan 1, 2021 to Feb 16, 2021 |
Epcor - Parker Dam
AZ0415027 · Surface water · 429 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, 2023
Violation history (5)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Oct 1, 2023 to Feb 27, 2024 |
| Lead and Copper Rule | Resolved | Oct 1, 2021 to Oct 21, 2021 |
| Public Notice | Resolved | Jul 2, 2021 to Sep 28, 2021 |
| Public Notice | Resolved | Jul 2, 2021 to Sep 28, 2021 |
| Lead and Copper Rule | Resolved | Jan 1, 2021 to Feb 16, 2021 |
Cienega Water Company Inc
AZ0415002 · Groundwater · 108 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 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Fluoride
EPA SDWIS reported health-based violation
- Reported level
- 4.6 MG/L
- Maximum contaminant level
- 4 MG/L
115% of the listed benchmark
Monitoring period: Apr 1, 2025 to Jun 30, 2025
Violation history (62)
| Rule | Status | Period |
|---|---|---|
| Public Notice | Unaddressed | Mar 4, 2026 |
| Chlorine | Archived | Mar 1, 2026 to Mar 31, 2026 |
| Chlorine | Archived | Feb 1, 2026 to Feb 28, 2026 |
| Lead and Copper Rule | Resolved | Jan 1, 2026 to Mar 12, 2026 |
| Chlorine | Archived | Jan 1, 2026 to Jan 31, 2026 |
| Chlorine | Archived | Dec 1, 2025 to Dec 31, 2025 |
| Public Notice | Unaddressed | Nov 15, 2025 |
| Chlorine | Archived | Nov 1, 2025 to Nov 30, 2025 |
| Consumer Confidence Rule | Unaddressed | Oct 2, 2025 |
| Fluoride | Resolved | Oct 1, 2025 to Dec 31, 2025 |
| Chlorine | Archived | Oct 1, 2025 to Oct 31, 2025 |
| Revised Total Coliform Rule | Resolved | Sep 1, 2025 to Sep 30, 2025 |
| Chlorine | Resolved | Sep 1, 2025 to Sep 30, 2025 |
| Public Notice | Unaddressed | Jul 30, 2025 |
| Consumer Confidence Rule | Unaddressed | Jul 1, 2025 |
| Revised Total Coliform Rule | Resolved | May 1, 2025 to May 31, 2025 |
| Public Notice | Unaddressed | Apr 1, 2025 |
| FluorideHealth-based | Archived | Apr 1, 2025 to Jun 30, 2025 |
| Chlorine | Resolved | Apr 1, 2025 to Apr 30, 2025 |
| Public Notice | Unaddressed | Jan 16, 2025 |
| Revised Total Coliform Rule | Resolved | Jan 1, 2025 to Jan 31, 2025 |
| Fluoride | Resolved | Jan 1, 2025 to Mar 31, 2025 |
| TTHM | Archived | Jan 1, 2025 to Dec 31, 2025 |
| Total Haloacetic Acids (HAA5) | Archived | Jan 1, 2025 to Dec 31, 2025 |
| Public Notice | Unaddressed | Dec 20, 2024 |
| Chlorine | Resolved | Dec 1, 2024 to Dec 31, 2024 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Addressed | Oct 17, 2024 |
| LEAD AND COPPER RULE REVISIONS | Addressed | Oct 17, 2024 |
| Lead and Copper Rule | Resolved | Oct 1, 2024 to Nov 13, 2024 |
| FluorideHealth-based | Archived | Oct 1, 2024 to Dec 31, 2024 |
| Revised Total Coliform Rule | Resolved | Sep 1, 2024 to Nov 13, 2024 |
| Revised Total Coliform Rule | Resolved | Jun 1, 2024 to Jun 30, 2024 |
| Fluoride | Resolved | Apr 1, 2024 to Jun 30, 2024 |
| Chlorine | Resolved | Apr 1, 2024 to Apr 30, 2024 |
| Public Notice | Resolved | Mar 29, 2024 to Jun 27, 2024 |
| Chlorine | Resolved | Jan 1, 2024 to Jan 31, 2024 |
| Consumer Confidence Rule | Resolved | Oct 2, 2023 to Dec 18, 2023 |
| Revised Total Coliform Rule | Resolved | Oct 1, 2023 to Oct 31, 2023 |
| Chlorine | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| Public Notice | Resolved | Jul 20, 2023 to Dec 15, 2023 |
| Public Notice | Resolved | Apr 21, 2023 to Dec 15, 2023 |
| Public Notice | Resolved | Apr 8, 2023 to Dec 14, 2023 |
| Public Notice | Resolved | Apr 8, 2023 to Dec 14, 2023 |
| Revised Total Coliform Rule | Resolved | Apr 1, 2023 to Apr 30, 2023 |
| Chlorine | Resolved | Apr 1, 2023 to Jun 30, 2023 |
| Lead and Copper Rule | Resolved | Jan 1, 2023 to Dec 14, 2023 |
| Chlorine | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| Revised Total Coliform Rule | Resolved | Dec 1, 2022 to Dec 31, 2022 |
| Public Notice | Resolved | Oct 2, 2022 to Dec 15, 2023 |
| Public Notice | Resolved | Oct 2, 2022 to Dec 15, 2023 |
| Lead and Copper Rule | Resolved | Oct 1, 2022 to Jun 6, 2023 |
| Chlorine | Resolved | Oct 1, 2022 to Dec 31, 2022 |
| Chlorine | Resolved | Jul 1, 2022 to Sep 30, 2022 |
| Chlorine | Resolved | Apr 1, 2022 to Jun 30, 2022 |
| Chlorine | Resolved | Jan 1, 2022 to Mar 31, 2022 |
| Lead and Copper Rule | Resolved | Oct 1, 2021 to Jun 6, 2023 |
| Fluoride | Resolved | Oct 1, 2021 to Dec 31, 2021 |
| Chlorine | Resolved | Oct 1, 2021 to Dec 31, 2021 |
| Chlorine | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Chlorine | Resolved | Apr 1, 2021 to Jun 30, 2021 |
| Public Notice | Resolved | Jan 12, 2021 to Jan 26, 2021 |
| Chlorine | Resolved | Jan 1, 2021 to Mar 31, 2021 |
Epcor - Rio Lindo
AZ0415040 · Surface water · 79 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, 2023
Violation history (3)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Oct 1, 2021 to Oct 15, 2021 |
| Public Notice | Resolved | Jul 2, 2021 to Sep 10, 2021 |
| Lead and Copper Rule | Resolved | Jul 1, 2021 to Jul 14, 2021 |
Hardness meter
What does nearby environmental evidence show?
330
PPM as CaCO₃
Very Hard
PPM
330
GPG
19.3
Regional environmental evidence
USGS hardness classification scale
330 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
330
mg/L as CaCO₃ equivalent
Grains per gallon
19.3
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
1
Nearest site
19.2 mi
Observation range
Jul 17, 2024–Jul 17, 2024
Regional evidence confidence
Low
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: COLORADO RIVER BELOW PALO VERDE DAM, AZ-CA (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 85344 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Parker median
330 PPM
About the same1 indexed ZIP readings · Range 330–330 PPM
Arizona median
64 PPM
266 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 Parker
Is tap water safe in Parker?+
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.