Hardness
Soft
13.1 PPM · 0.8 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 Pope County.
At a glance
EPA quarter 2026Q2
Hardness
Soft
13.1 PPM · 0.8 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.003 mg/L
20% of action level
Utility match
1 system
Serves 4,045 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
13.1 PPM
Parts per million
13.1
mg/L as CaCO₃ equivalent
Grains per gallon
0.8
1 GPG ≈ 17.1 PPM
What this means at home
At 13.1 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
19
Nearest site
4.7 mi
Observation range
Jan 13, 2016–May 29, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: Whig Cr @ WWT Plant nr Russellville (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.
Pottsville median
13 PPM
About the same1 indexed ZIP readings · Range 13.1–13.1 PPM
Arkansas median
71 PPM
58 PPM lower210 indexed ZIP readings · Range 4.8–283 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)
0.003 mg/L
Reported Dec 31, 2025
Copper (CU90)
41 mg/L
Reported Dec 31, 2011
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0.003
EPA limit 0.015
Measured in mg/L
Local 41
EPA limit 1.3
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Chlorine | AR0000445 | Resolved | Aug 1, 2025through Aug 31, 2025 |
| Revised Total Coliform Rule | AR0000445 | Resolved | Sep 1, 2023through Sep 30, 2023 |
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 Pottsville ZIP 72858 using 13.1 PPM nearby hardness and 2 reported measurement benchmarks.
Drinking 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 13.1 PPM, or 0.8 grains per gallon, classified as soft. This is not a household tap measurement.
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.