Hardness
Very Hard
190 PPM · 11.1 GPG
Local water dashboard
Official source aggregationA source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Stone County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
190 PPM · 11.1 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.002 mg/L
13% of action level
Utility match
1 system
Serves 1,495 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
190 PPM
Parts per million
190
mg/L as CaCO₃ equivalent
Grains per gallon
11.1
1 GPG ≈ 17.1 PPM
What this means at home
At 190 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
49
Nearest site
13.9 mi
Observation range
May 4, 2016–Sep 4, 2025
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: MOLA-3 (Well).USGS source documentation ↗
Regional context
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Crane median
190 PPM
About the same1 indexed ZIP readings · Range 190–190 PPM
Missouri median
236 PPM
46 PPM lower556 indexed ZIP readings · Range 38.3–483 PPM
EPA benchmark screen
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
Lead (PB90)
0.002 mg/L
Reported Dec 31, 2023
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.
Measured in mg/L
Local 0.002
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | MO5010192 | Resolved | Nov 5, 2025through Nov 24, 2025 |
| Revised Total Coliform Rule | MO5010192 | Unaddressed | Nov 1, 2025 |
| Revised Total Coliform RuleHealth-based | MO5010192 | Resolved | Sep 15, 2025through Sep 24, 2025 |
| Revised Total Coliform Rule | MO5010192 | Resolved | May 1, 2025through May 31, 2025 |
| Public Notice | MO5010192 | Resolved | Mar 27, 2025through Aug 18, 2025 |
| Revised Total Coliform Rule | MO5010192 | Resolved | Feb 1, 2024through Jan 23, 2025 |
| Lead and Copper Rule | MO5010192 | Unaddressed | Dec 30, 2023 |
| Consumer Confidence Rule | MO5010192 | Resolved | Jul 1, 2021through Jan 4, 2022 |
| Public Notice | MO5010192 | Resolved | Jan 6, 2021through Jun 30, 2021 |
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Matched to Crane ZIP 65633 using 190 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
190 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.
Frequently asked
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.
Nearby USGS observations produce an estimate of 190 PPM, or 11.1 grains per gallon, classified as very hard. This is not a household tap measurement.
At 190 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.