Hardness
Very Hard
291 PPM · 17 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 Sedgwick County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
291 PPM · 17 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0021 mg/L
14% of action level
Utility match
1 system
Serves 115 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
291 PPM
Parts per million
291
mg/L as CaCO₃ equivalent
Grains per gallon
17
1 GPG ≈ 17.1 PPM
What this means at home
At 291 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
111
Nearest site
22.4 mi
Observation range
Mar 29, 2016–Jul 16, 2018
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 25S 02W 22DCDC02 IW-35C DEEP (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.
Viola median
291 PPM
About the same1 indexed ZIP readings · Range 291–291 PPM
Kansas median
289 PPM
About the same540 indexed ZIP readings · Range 72.2–707 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)
0.0021 mg/L
Reported Dec 31, 2024
Copper (CU90)
1.55 mg/L
Reported Dec 31, 2019
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0.0021
EPA limit 0.015
Measured in mg/L
Local 1.55
EPA limit 1.3
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Revised Total Coliform Rule | KS2017313 | Resolved | Aug 1, 2025through Aug 31, 2025 |
| Chlorine | KS2017313 | Resolved | Aug 1, 2025through Aug 31, 2025 |
| Lead and Copper Rule | KS2017313 | Unaddressed | Jan 1, 2025 |
| Total Haloacetic Acids (HAA5) | KS2017313 | Resolved | Jan 1, 2024through Dec 31, 2024 |
| Lead and Copper Rule | KS2017313 | Unaddressed | Jan 1, 2024 |
| TTHM | KS2017313 | Resolved | Jan 1, 2024through Dec 31, 2024 |
| Revised Total Coliform Rule | KS2017313 | Resolved | Sep 1, 2023through Sep 30, 2023 |
| Chlorine | KS2017313 | Resolved | Jul 1, 2023through Sep 30, 2023 |
| Lead and Copper Rule | KS2017313 | Unaddressed | Oct 1, 2022 |
| Lead and Copper Rule | KS2017313 | Unaddressed | Apr 1, 2022 |
| Lead and Copper Rule | KS2017313 | Unaddressed | Sep 29, 2021 |
| TTHM | KS2017313 | Resolved | Jan 1, 2021through Dec 31, 2023 |
| Total Haloacetic Acids (HAA5) | KS2017313 | Resolved | Jan 1, 2021through Dec 31, 2023 |
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 Viola ZIP 67149 using 291 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
291 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 systemsDrinking water protection
Copper (90th percentile) has 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
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 291 PPM, or 17 grains per gallon, classified as very hard. This is not a household tap measurement.
At 291 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.