Hardness
Hard
132 PPM · 7.7 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 Nelson County.
At a glance
EPA quarter 2026Q2
Hardness
Hard
132 PPM · 7.7 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0 mg/L
0% of action level
Utility match
1 system
Serves 31,185 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
132 PPM
Parts per million
132
mg/L as CaCO₃ equivalent
Grains per gallon
7.7
1 GPG ≈ 17.1 PPM
What this means at home
At 132 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
67.7 mi
Observation range
Jan 21, 2016–May 27, 2026
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: OHIO RIVER AT CANNELTON DAM AT CANNELTON, IN (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.
Bardstown median
132 PPM
About the same1 indexed ZIP readings · Range 132–132 PPM
Kentucky median
157 PPM
25 PPM lower162 indexed ZIP readings · Range 32.6–360 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 mg/L
Reported Dec 31, 2025
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
1 comparable result
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| TTHM | KY0900017 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Total Haloacetic Acids (HAA5) | KY0900017 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Lead and Copper Rule | KY0900017 | Resolved | Jan 1, 2024through Nov 14, 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
Matched to Bardstown ZIP 40004 using 132 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
132 PPM is 1× 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 systemsAffiliate 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 132 PPM, or 7.7 grains per gallon, classified as hard. This is not a household tap measurement.
At 132 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.