Hardness
Very Hard
248.5 PPM · 14.5 GPG
Local water dashboard
Official source aggregationWater quality in Monticello, AR 71655
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Drew County.
No active health-based violation reported
- Primary matched system
- Monticello Water Department
- Source water
- Groundwater
- County
- Drew 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
0.001 mg/L
7% of action level
Utility match
1 system
Serves 8,442 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
248.5 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
248.5
mg/L as CaCO₃ equivalent
Grains per gallon
14.5
1 GPG ≈ 17.1 PPM
What this means at home
At 248.5 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
62
Nearest site
15.2 mi
Observation range
Aug 15, 2016–Aug 9, 2023
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 11S04W35CDD1 (Well).USGS source documentation ↗
Regional context
Is 71655 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Monticello median
249 PPM
About the same1 indexed ZIP readings · Range 248.5–248.5 PPM
Arkansas median
71 PPM
178 PPM higher210 indexed ZIP readings · Range 4.8–283 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 pass
Lead (PB90)
0.001 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.
Lead (90th percentile)
Measured in mg/L
Local 0.001
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 0
- Health-based
- 0
- Active health-based
- 0
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
Your personalized water action plan
Matched to Monticello ZIP 71655 using 248.5 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
248.5 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 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
Water questions for Monticello
Is tap water safe in Monticello?+
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 248.5 PPM, or 14.5 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 248.5 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.