Hardness
Very Hard
302 PPM · 17.7 GPG
Local water dashboard
Official source aggregationWater quality in Fort Mohave, AZ 86426
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Mohave County.
1 active health-based violation
- Primary matched system
- Lagoon Estates Wc Unit 7
- Source water
- Groundwater
- County
- Mohave County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
1 active health-based record
Lead 90th percentile
0.0011 mg/L
7% of action level
Utility match
2 systems
Serves 1,578 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
302 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
302
mg/L as CaCO₃ equivalent
Grains per gallon
17.7
1 GPG ≈ 17.1 PPM
What this means at home
At 302 PPM, mineral scale can build up on fixtures and heating elements, reduce soap lather, and leave visible spotting. Hardness is primarily an aesthetic and appliance concern—not itself a tap-water safety rating.
USGS sites used
9
Nearest site
20.1 mi
Observation range
Oct 10, 2017–Oct 26, 2022
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 007N024E06N001S (Well).USGS source documentation ↗
Regional context
Is 86426 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Fort Mohave median
302 PPM
About the same1 indexed ZIP readings · Range 302–302 PPM
Arizona median
241 PPM
61 PPM higher285 indexed ZIP readings · Range 66.4–1250 PPM
EPA benchmark screen
Contaminant snapshot
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
1 pass
Lead (PB90)
0.0011 mg/L
Reported Dec 31, 2025
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
1 comparable result
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.0011
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 50
- Health-based
- 7
- Active health-based
- 1
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | AZ0408066 | Unaddressed | Feb 4, 2026 |
| Lead and Copper Rule | AZ0408066 | Resolved | Jan 1, 2026through Mar 23, 2026 |
| Public Notice | AZ0408066 | Unaddressed | Jul 2, 2025 |
| LEAD AND COPPER RULE REVISIONS | AZ0408066 | Resolved | Jul 2, 2025through Mar 7, 2026 |
| Chlorine | AZ0408066 | Resolved | Jul 1, 2025through Jul 31, 2025 |
| Chlorine | AZ0408021 | Resolved | Apr 1, 2025through Apr 30, 2025 |
| Chlorine | AZ0408066 | Archived | Apr 1, 2025through Apr 30, 2025 |
| Public Notice | AZ0408066 | Resolved | Feb 8, 2025through Sep 12, 2025 |
| Lead and Copper Rule | AZ0408066 | Resolved | Jan 1, 2025through Mar 26, 2025 |
| TTHM | AZ0408066 | Archived | Jan 1, 2025through Dec 31, 2025 |
| Chlorine | AZ0408066 | Resolved | Dec 1, 2024through Dec 31, 2024 |
| Chlorine | AZ0408066 | Resolved | Nov 1, 2024through Nov 30, 2024 |
| Chlorine | AZ0408066 | Resolved | Oct 1, 2024through Oct 31, 2024 |
| Lead and Copper Rule | AZ0408066 | Resolved | Oct 1, 2024through Nov 18, 2024 |
| E. COLI | AZ0408021 | Resolved | May 23, 2024through Jul 15, 2024 |
| Groundwater RuleHealth-based | AZ0408066 | Resolved | Apr 27, 2024through Aug 12, 2024 |
| Groundwater RuleHealth-based | AZ0408066 | Resolved | Apr 12, 2024through Jun 6, 2024 |
| Groundwater RuleHealth-based | AZ0408066 | Resolved | Apr 12, 2024through Jul 30, 2024 |
| Groundwater RuleHealth-based | AZ0408066 | Resolved | Apr 12, 2024through Jun 6, 2024 |
| Lead and Copper Rule | AZ0408066 | Resolved | Apr 2, 2024through Jan 31, 2025 |
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Your personalized water action plan
Matched to Fort Mohave ZIP 86426 using 302 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
302 PPM is 3× the high-hardness trigger used by this matcher.
Designed to reduce scale on fixtures, water heaters, glassware, and plumbing throughout the home.
Compare whole-house systemsAffiliate disclosure: we may earn a commission from qualifying purchases, at no added cost to you. Product matching is educational and does not replace certified water testing.
Frequently asked
Water questions for Fort Mohave
Is tap water safe in Fort Mohave?+
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?+
Nearby USGS observations produce an estimate of 302 PPM, or 17.7 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 302 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.