Hardness
Hard
137 PPM · 8 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 Newton County.
At a glance
EPA quarter 2026Q2
Hardness
Hard
137 PPM · 8 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0 mg/L
0% of action level
Utility match
3 systems
Serves 12,157 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
137 PPM
Parts per million
137
mg/L as CaCO₃ equivalent
Grains per gallon
8
1 GPG ≈ 17.1 PPM
What this means at home
At 137 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
39
Nearest site
12.6 mi
Observation range
Jan 6, 2016–Apr 21, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: Shoal Creek above Joplin, MO (Stream).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.
Neosho median
137 PPM
About the same1 indexed ZIP readings · Range 137–137 PPM
Missouri median
236 PPM
99 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 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.
Measured in mg/L
Local 0
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Revised Total Coliform Rule | MO5041190 | Resolved | Feb 1, 2026through Feb 28, 2026 |
| Lead and Copper Rule | MO5041190 | Unaddressed | Oct 1, 2025 |
| Consumer Confidence Rule | MO5041190 | Resolved | Jul 1, 2025through Nov 25, 2025 |
| Revised Total Coliform Rule | MO5048346 | Resolved | Dec 1, 2024through Dec 31, 2024 |
| LEAD AND COPPER RULE REVISIONS | MO5048346 | Resolved | Oct 17, 2024through Jan 17, 2025 |
| LEAD AND COPPER RULE REVISIONS | MO5041190 | Unaddressed | Oct 17, 2024 |
| Interim Enhanced Surface Water Treatment Rule | MO5010560 | Archived | Oct 1, 2024through Oct 31, 2024 |
| Interim Enhanced Surface Water Treatment Rule | MO5010560 | Archived | Oct 1, 2024through Oct 31, 2024 |
| Surface Water Treatment Rule | MO5010560 | Archived | Oct 1, 2024through Oct 31, 2024 |
| Public Notice | MO5041190 | Resolved | Sep 27, 2024through Jan 29, 2025 |
| Revised Total Coliform Rule | MO5041190 | Resolved | Jul 1, 2024through Jul 31, 2024 |
| Revised Total Coliform Rule | MO5048346 | Resolved | Mar 1, 2024through Mar 31, 2024 |
| Lead and Copper Rule | MO5010560 | Resolved | Dec 30, 2023through May 2, 2024 |
| Revised Total Coliform Rule | MO5041190 | Resolved | Nov 1, 2023through Nov 30, 2023 |
| E. COLI | MO5041190 | Resolved | Sep 1, 2023through Aug 17, 2023 |
| E. COLI | MO5041190 | Resolved | Jun 1, 2023through Aug 17, 2023 |
| Revised Total Coliform Rule | MO5048346 | Resolved | Apr 1, 2023through Apr 30, 2023 |
| Consumer Confidence Rule | MO5041190 | Resolved | Jul 1, 2021through Jun 21, 2022 |
| Revised Total Coliform Rule | MO5041190 | Resolved | Jun 1, 2021through Jun 30, 2021 |
| E. COLI | MO5041190 | Unaddressed | Dec 1, 2016 |
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 Neosho ZIP 64850 using 137 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
137 PPM is 1× 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 137 PPM, or 8 grains per gallon, classified as hard. This is not a household tap measurement.
At 137 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.