Hardness
Very Hard
301.5 PPM · 17.6 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 Chase County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
301.5 PPM · 17.6 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0023 mg/L
15% of action level
Utility match
1 system
Serves 42 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
301.5 PPM
Parts per million
301.5
mg/L as CaCO₃ equivalent
Grains per gallon
17.6
1 GPG ≈ 17.1 PPM
What this means at home
At 301.5 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
110
Nearest site
9.8 mi
Observation range
Mar 29, 2016–Aug 23, 2018
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 19S 08E 21BBDA01 (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.
Elmdale median
302 PPM
About the same1 indexed ZIP readings · Range 301.5–301.5 PPM
Kansas median
289 PPM
13 PPM higher540 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)
0.0023 mg/L
Reported Dec 31, 2024
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
3 comparable results
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0.0023
EPA limit 0.015
Measured in MG/L
Local 0.089
EPA limit 0.08
Measured in MG/L
Local 0.067
EPA limit 0.06
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| LEAD AND COPPER RULE REVISIONS | KS2001704 | Unaddressed | Jul 2, 2025 |
| Lead and Copper Rule | KS2001704 | Resolved | Jan 1, 2025through Feb 10, 2025 |
| Groundwater RuleHealth-based | KS2001704 | Resolved | Jul 18, 2021through Feb 22, 2023 |
| Groundwater RuleHealth-based | KS2001704 | Resolved | Jul 18, 2021through Feb 21, 2023 |
| Groundwater Rule | KS2001704 | Resolved | Apr 19, 2021through Jun 14, 2021 |
| TTHMHealth-basedReported 0.089 MG/L · MCL 0.08 | KS2001704 | Resolved | Apr 1, 2021through Jun 30, 2021 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.067 MG/L · MCL 0.06 | KS2001704 | Resolved | Jan 1, 2021through Mar 31, 2021 |
| TTHMHealth-basedReported 0.134 MG/L · MCL 0.08 | KS2001704 | Resolved | Jan 1, 2021through Mar 31, 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 Elmdale ZIP 66850 using 301.5 PPM nearby hardness and 3 reported measurement benchmarks.
Scale protection
301.5 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
TTHM, Total Haloacetic Acids (HAA5) 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
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 301.5 PPM, or 17.6 grains per gallon, classified as very hard. This is not a household tap measurement.
At 301.5 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.