Hardness
Very Hard
241 PPM · 14.1 GPG
Local water dashboard
Official source aggregationWater quality in Prescott Valley, AZ 86314
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Yavapai County.
No active health-based violation reported
- Primary matched system
- Town Of Prescott Valley
- Source water
- Groundwater
- County
- Yavapai County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0 mg/L
0% of action level
Utility match
4 systems
Serves 57,048 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
241 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
241
mg/L as CaCO₃ equivalent
Grains per gallon
14.1
1 GPG ≈ 17.1 PPM
What this means at home
At 241 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
31
Nearest site
13.3 mi
Observation range
Jun 27, 2016–May 1, 2024
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: B-16-01 07CBD1 (Well).USGS source documentation ↗
Regional context
Is 86314 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Prescott Valley median
239 PPM
About the same2 indexed ZIP readings · Range 237.5–241 PPM
Arizona median
241 PPM
About the same285 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 mg/L
Reported Dec 31, 2026
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
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 22
- Health-based
- 2
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | AZ0413485 | Unaddressed | Nov 16, 2025 |
| Consumer Confidence Rule | AZ0413485 | Resolved | Oct 2, 2025through Nov 3, 2025 |
| Consumer Confidence Rule | AZ0413281 | Unaddressed | Oct 2, 2025 |
| Public Notice | AZ0413485 | Unaddressed | Aug 12, 2025 |
| Lead and Copper Rule | AZ0413485 | Resolved | Jul 1, 2025through Nov 18, 2025 |
| Heptachlor epoxide | AZ0413485 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| Lead and Copper Rule | AZ0413485 | Unaddressed | Apr 3, 2025 |
| Heptachlor epoxide | AZ0413485 | Resolved | Apr 1, 2025through Jun 30, 2025 |
| Public Notice | AZ0413485 | Unaddressed | Dec 20, 2024 |
| Public Notice | AZ0413281 | Resolved | Dec 20, 2024through Mar 25, 2025 |
| Public Notice | AZ0413485 | Resolved | Nov 30, 2024through Aug 8, 2024 |
| LEAD AND COPPER RULE REVISIONS | AZ0413485 | Resolved | Oct 17, 2024through Mar 31, 2026 |
| LEAD AND COPPER RULE REVISIONSHealth-based | AZ0413485 | Resolved | Oct 17, 2024through Mar 31, 2026 |
| LEAD AND COPPER RULE REVISIONS | AZ0413281 | Resolved | Oct 17, 2024through Sep 17, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | AZ0413281 | Resolved | Oct 17, 2024through Sep 17, 2025 |
| Consumer Confidence Rule | AZ0413485 | Resolved | Oct 2, 2024through Jan 2, 2025 |
| Lead and Copper Rule | AZ0413485 | Resolved | Jul 1, 2024through Sep 20, 2024 |
| Consumer Confidence Rule | AZ0413485 | Resolved | Jul 1, 2024through Oct 23, 2024 |
| TTHM | AZ0413048 | Resolved | Jan 1, 2024through Dec 31, 2024 |
| Total Haloacetic Acids (HAA5) | AZ0413048 | Resolved | Jan 1, 2024through Dec 31, 2024 |
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 Prescott Valley ZIP 86314 using 241 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
241 PPM is 2× 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.
Nearby indexed reports
Compare ZIPs in Prescott Valley
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Prescott Valley
Is tap water safe in Prescott Valley?+
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?+
Nearby USGS observations produce an estimate of 241 PPM, or 14.1 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 241 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.