Hardness
Very Hard
316.5 PPM · 18.5 GPG
Local water dashboard
Official source aggregationWater quality in Burr Oak, KS 66936
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Jewell County.
2 reported benchmark flags
- Primary matched system
- Burr Oak, City Of
- Source water
- Groundwater
- County
- Jewell 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
0.0041 mg/L
27% of action level
Utility match
1 system
Serves 142 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
316.5 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
316.5
mg/L as CaCO₃ equivalent
Grains per gallon
18.5
1 GPG ≈ 17.1 PPM
What this means at home
At 316.5 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
38
Nearest site
25.6 mi
Observation range
Jul 30, 2018–Sep 9, 2025
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 01S 04W 31BCBC01 (Well).USGS source documentation ↗
Regional context
Is 66936 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Burr Oak median
317 PPM
About the same1 indexed ZIP readings · Range 316.5–316.5 PPM
Kansas median
289 PPM
28 PPM higher540 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 pass2 fail
Lead (PB90)
0.0041 mg/L
Reported Dec 31, 2023
Copper (CU90)
1.365 mg/L
Reported Dec 31, 2020
Numerical coverage
3 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.0041
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 1.365
EPA limit 1.3
Combined Uranium
Measured in UG/L
Local 31
EPA limit 30
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 3
- Health-based
- 1
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Consumer Confidence Rule | KS2008906 | Resolved | Oct 2, 2023through Mar 6, 2024 |
| Consumer Confidence Rule | KS2008906 | Resolved | Jul 1, 2023through Feb 29, 2024 |
| Combined UraniumHealth-basedReported 31 UG/L · MCL 30 | KS2008906 | Resolved | Jul 1, 2021through Sep 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
Your personalized water action plan
Matched to Burr Oak ZIP 66936 using 316.5 PPM nearby hardness and 3 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
316.5 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
Under-Sink Reverse Osmosis System
Copper (90th percentile), Combined Uranium 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 Burr Oak
Is tap water safe in Burr Oak?+
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 316.5 PPM, or 18.5 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 316.5 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.