Hardness
Very Hard
323.5 PPM · 18.9 GPG
Local water dashboard
Official source aggregationWater quality in Florence, AZ 85132
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Pinal County.
2 active health-based violations
- Primary matched system
- Florence Water Company
- Source water
- Groundwater
- County
- Pinal County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
2 active health-based records
Lead 90th percentile
0.012 mg/L
80% of action level
Utility match
7 systems
Serves 15,900 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
323.5 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
323.5
mg/L as CaCO₃ equivalent
Grains per gallon
18.9
1 GPG ≈ 17.1 PPM
What this means at home
At 323.5 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
20
Nearest site
41.5 mi
Observation range
Jan 11, 2016–Dec 17, 2024
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: D-13-12 03BCC1 (Well).USGS source documentation ↗
Regional context
Is 85132 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Florence median
324 PPM
About the same1 indexed ZIP readings · Range 323.5–323.5 PPM
Arizona median
241 PPM
83 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 pass3 fail
Lead (PB90)
0.012 mg/L
Reported Dec 31, 2025
Copper (CU90)
4 mg/L
Reported Dec 31, 2013
Numerical coverage
4 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.012
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 4
EPA limit 1.3
Arsenic
Measured in MG/L
Local 0.015
EPA limit 0.01
Nitrate
Measured in MG/L
Local 12.9
EPA limit 10
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 109
- Health-based
- 32
- Active health-based
- 2
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | AZ0411705 | Unaddressed | Mar 15, 2026 |
| Revised Total Coliform Rule | AZ0411705 | Archived | Mar 1, 2026through Mar 31, 2026 |
| Revised Total Coliform Rule | AZ0411066 | Archived | Mar 1, 2026through Mar 31, 2026 |
| Revised Total Coliform Rule | AZ0411705 | Resolved | Jan 1, 2026through Jan 31, 2026 |
| Lead and Copper Rule | AZ0411560 | Unaddressed | Jan 1, 2026 |
| Revised Total Coliform Rule | AZ0411705 | Resolved | Dec 1, 2025through Dec 31, 2025 |
| Revised Total Coliform Rule | AZ0411066 | Resolved | Dec 1, 2025through Feb 3, 2026 |
| Groundwater RuleHealth-based | AZ0411705 | Unaddressed | Oct 23, 2025 |
| Public Notice | AZ0411407 | Resolved | Oct 18, 2025through Nov 17, 2025 |
| E. COLI | AZ0411066 | Resolved | Oct 3, 2025through Jan 9, 2026 |
| Consumer Confidence Rule | AZ0411017 | Resolved | Oct 2, 2025through Feb 19, 2026 |
| Consumer Confidence Rule | AZ0411129 | Resolved | Oct 2, 2025through Oct 8, 2025 |
| Revised Total Coliform Rule | AZ0411705 | Resolved | Oct 1, 2025through Dec 10, 2025 |
| Lead and Copper Rule | AZ0411560 | Resolved | Oct 1, 2025through Mar 26, 2026 |
| ArsenicHealth-basedReported 0.015 MG/L · MCL 0.01 | AZ0411129 | Archived | Oct 1, 2025through Dec 31, 2025 |
| LEAD AND COPPER RULE REVISIONS | AZ0411017 | Resolved | Jul 2, 2025through Jan 26, 2026 |
| Consumer Confidence Rule | AZ0411017 | Resolved | Jul 1, 2025through Feb 19, 2026 |
| ArsenicHealth-basedReported 0.015 MG/L · MCL 0.01 | AZ0411129 | Archived | Jul 1, 2025through Sep 30, 2025 |
| Revised Total Coliform Rule | AZ0411066 | Resolved | Jun 1, 2025through Jun 30, 2025 |
| Revised Total Coliform Rule | AZ0411705 | Resolved | May 1, 2025through Jun 13, 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 Florence ZIP 85132 using 323.5 PPM nearby hardness and 4 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
323.5 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 systemsDrinking water protection
Under-Sink Reverse Osmosis System
Copper (90th percentile), Arsenic, Nitrate, Groundwater Rule have a measured benchmark flag or active health-based SDWIS record in this profile.
A certified multi-stage RO system targets a broader range of dissolved contaminants at the kitchen tap.
Explore under-sink filtrationAffiliate 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 Florence
Is tap water safe in Florence?+
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?+
Nearby USGS observations produce an estimate of 323.5 PPM, or 18.9 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 323.5 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.