Hardness
Moderately Hard
72.2 PPM · 4.2 GPG
Local water dashboard
Official source aggregationWater quality in Yates Center, KS 66783
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Woodson County.
4 reported benchmark flags
- Primary matched system
- Yates Center, City Of
- Source water
- Surface water
- County
- Woodson County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0022 mg/L
15% of action level
Utility match
1 system
Serves 1,335 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
72.2 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
72.2
mg/L as CaCO₃ equivalent
Grains per gallon
4.2
1 GPG ≈ 17.1 PPM
What this means at home
At 72.2 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
1
Nearest site
68.4 mi
Observation range
May 12, 2016–Jun 26, 2024
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: East Drywood Creek at Prairie State Park (Stream).USGS source documentation ↗
Regional context
Is 66783 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Yates Center median
72 PPM
About the same1 indexed ZIP readings · Range 72.2–72.2 PPM
Kansas median
289 PPM
217 PPM lower540 indexed ZIP readings · Range 72.2–707 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 pass4 fail
Lead (PB90)
0.0022 mg/L
Reported Dec 31, 2025
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
5 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.0022
EPA limit 0.015
Chlorine dioxide
Measured in MG/L
Local 0.88
EPA limit 0.8
Total Haloacetic Acids (HAA5)
Measured in MG/L
Local 0.065
EPA limit 0.06
TTHM
Measured in MG/L
Local 0.081
EPA limit 0.08
Chlorite
Measured in MG/L
Local 1.3
EPA limit 1
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 32
- Health-based
- 22
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Chlorine dioxideHealth-basedReported 0.88 MG/L · MCL 0.8 | KS2020702 | Archived | Jan 1, 2026through Jan 31, 2026 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.065 MG/L · MCL 0.06 | KS2020702 | Archived | Jan 1, 2026through Mar 31, 2026 |
| Chlorine dioxide | KS2020702 | Archived | Jan 1, 2026through Jan 31, 2026 |
| Chlorite | KS2020702 | Archived | Jan 1, 2026through Jan 31, 2026 |
| CARBON, TOTALHealth-basedReported 0.59 RATIO | KS2020702 | Archived | Jan 1, 2026through Mar 31, 2026 |
| Chlorine dioxide | KS2020702 | Archived | Dec 1, 2025through Dec 31, 2025 |
| Chlorine dioxideHealth-basedReported 0.81 MG/L · MCL 0.8 | KS2020702 | Resolved | Oct 1, 2025through Oct 31, 2025 |
| CARBON, TOTALHealth-basedReported 0.6 RATIO | KS2020702 | Archived | Oct 1, 2025through Dec 31, 2025 |
| TTHMHealth-basedReported 0.081 MG/L · MCL 0.08 | KS2020702 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| LEAD AND COPPER RULE REVISIONS | KS2020702 | Unaddressed | Jul 2, 2025 |
| CARBON, TOTALHealth-basedReported 0.49 RATIO | KS2020702 | Archived | Jul 1, 2025through Sep 30, 2025 |
| Chlorite | KS2020702 | Resolved | Jul 1, 2025through Jul 31, 2025 |
| CARBON, TOTALHealth-basedReported 0.53 RATIO | KS2020702 | Archived | Apr 1, 2025through Jun 30, 2025 |
| CARBON, TOTAL | KS2020702 | Resolved | Mar 1, 2025through Mar 31, 2025 |
| CARBON, TOTALHealth-basedReported 0.56 RATIO | KS2020702 | Archived | Jan 1, 2025through Mar 31, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.078 MG/L · MCL 0.06 | KS2020702 | Resolved | Jan 1, 2025through Mar 31, 2025 |
| CARBON, TOTAL | KS2020702 | Resolved | Jan 1, 2025through Jan 31, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.098 MG/L · MCL 0.06 | KS2020702 | Resolved | Oct 1, 2024through Dec 31, 2024 |
| CARBON, TOTALHealth-basedReported 0.74 RATIO | KS2020702 | Archived | Oct 1, 2024through Dec 31, 2024 |
| Surface Water Treatment Rule | KS2020702 | Resolved | Sep 1, 2024through Sep 30, 2024 |
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 Yates Center ZIP 66783 using 72.2 PPM nearby hardness and 5 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
Chlorine dioxide, Total Haloacetic Acids (HAA5), TTHM, Chlorite 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 Yates Center
Is tap water safe in Yates Center?+
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.
How hard is the water?+
Nearby USGS observations produce an estimate of 72.2 PPM, or 4.2 grains per gallon, classified as moderately hard. This is not a household tap measurement.
Do I need a water softener?+
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.