Hardness
Hard
155 PPM · 9.1 GPG
Local water dashboard
Official source aggregationWater quality in Marion, KY 42064
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Crittenden County.
1 reported benchmark flag
- Primary matched system
- Marion Water Department
- Source water
- Surface water
- County
- Crittenden 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 mg/L
0% of action level
Utility match
1 system
Serves 3,039 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
155 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
155
mg/L as CaCO₃ equivalent
Grains per gallon
9.1
1 GPG ≈ 17.1 PPM
What this means at home
At 155 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
3
Nearest site
32 mi
Observation range
Jan 4, 2016–May 28, 2026
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: TENNESSEE RIVER AT HIGHWAY 60 NEAR PADUCAH, KY (Stream).USGS source documentation ↗
Regional context
Is 42064 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Marion median
155 PPM
About the same1 indexed ZIP readings · Range 155–155 PPM
Kentucky median
157 PPM
About the same162 indexed ZIP readings · Range 32.6–360 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 pass1 fail
Lead (PB90)
0 mg/L
Reported Dec 31, 2024
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0
EPA limit 0.015
TTHM
Measured in MG/L
Local 0.082
EPA limit 0.08
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 |
|---|---|---|---|
| LEAD AND COPPER RULE REVISIONS | KY0280267 | Resolved | Jul 2, 2025through Sep 17, 2025 |
| TTHMHealth-basedReported 0.082 MG/L · MCL 0.08 | KY0280267 | Resolved | Oct 1, 2022through Dec 31, 2022 |
| Consumer Confidence Rule | KY0280267 | Resolved | Jul 1, 2021through Apr 7, 2022 |
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 Marion ZIP 42064 using 155 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
155 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 systemsDrinking water protection
Under-Sink Reverse Osmosis System
TTHM 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
Water questions for Marion
Is tap water safe in Marion?+
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 155 PPM, or 9.1 grains per gallon, classified as hard. This is not a household tap measurement.
Do I need a water softener?+
At 155 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.