Hardness
Very Hard
238.5 PPM · 13.9 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 Jefferson County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
238.5 PPM · 13.9 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0019 mg/L
12% of action level
Utility match
2 systems
Serves 3,707 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
238.5 PPM
Parts per million
238.5
mg/L as CaCO₃ equivalent
Grains per gallon
13.9
1 GPG ≈ 17.1 PPM
What this means at home
At 238.5 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
2
Nearest site
61.9 mi
Observation range
Jan 5, 2016–May 13, 2026
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: SALT CR BL STEVENS CR NR WAVERLY NEBR (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.
Fairbury median
239 PPM
About the same1 indexed ZIP readings · Range 238.5–238.5 PPM
Nebraska median
309 PPM
70 PPM lower466 indexed ZIP readings · Range 72.3–1245 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)
0.0019 mg/L
Reported Dec 31, 2025
Copper (CU90)
1.36 mg/L
Reported Jun 30, 2021
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0.0019
EPA limit 0.015
Measured in mg/L
Local 1.36
EPA limit 1.3
100% line = listed limit
No violation record was returned for the associated systems in the imported lookback window beginning Jan 1, 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 Fairbury ZIP 68352 using 238.5 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
238.5 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 238.5 PPM, or 13.9 grains per gallon, classified as very hard. This is not a household tap measurement.
At 238.5 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.