Hardness
Soft
11.9 PPM · 0.7 GPG
Local water dashboard
Official source aggregationWater quality in Mount Ida, AR 71957
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Montgomery County.
1 active health-based violation
- Primary matched system
- Mount Ida Waterworks
- Source water
- Surface water
- County
- Montgomery County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
1 active health-based record
Lead 90th percentile
0.006 mg/L
40% of action level
Utility match
1 system
Serves 3,218 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
11.9 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
11.9
mg/L as CaCO₃ equivalent
Grains per gallon
0.7
1 GPG ≈ 17.1 PPM
What this means at home
At 11.9 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
14
Nearest site
38.7 mi
Observation range
Feb 11, 2016–May 31, 2023
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: Cossatot River near Vandervoort, AR (Stream).USGS source documentation ↗
Regional context
Is 71957 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Mount Ida median
12 PPM
About the same1 indexed ZIP readings · Range 11.9–11.9 PPM
Arkansas median
71 PPM
59 PPM lower210 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 pass3 fail
Lead (PB90)
0.006 mg/L
Reported Sep 30, 2003
Copper (CU90)
1.89 mg/L
Reported Feb 12, 1996
Numerical coverage
4 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.006
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 1.89
EPA limit 1.3
TTHM
Measured in UG/L
Local 94
EPA limit 0.08
Total Haloacetic Acids (HAA5)
Measured in UG/L
Local 94
EPA limit 0.06
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 20
- Health-based
- 15
- Active health-based
- 1
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| LEAD AND COPPER RULE REVISIONSHealth-based | AR0000392 | Addressed | Apr 30, 2026 |
| LEAD AND COPPER RULE REVISIONS | AR0000392 | Addressed | Apr 30, 2026 |
| TTHMHealth-basedReported 94 UG/L · MCL 0.08 | AR0000392 | Archived | Oct 1, 2025through Dec 31, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 94 UG/L · MCL 0.06 | AR0000392 | Archived | Oct 1, 2025through Dec 31, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 61 UG/L · MCL 0.06 | AR0000392 | Archived | Jul 1, 2025through Sep 30, 2025 |
| TTHMHealth-basedReported 89 UG/L · MCL 0.08 | AR0000392 | Archived | Jul 1, 2025through Sep 30, 2025 |
| Public Notice | AR0000392 | Resolved | Sep 1, 2023through Aug 30, 2024 |
| Public Notice | AR0000392 | Resolved | Jun 1, 2023through Aug 30, 2024 |
| TTHMHealth-basedReported 85 UG/L · MCL 0.08 | AR0000392 | Resolved | Apr 1, 2023through Jun 30, 2023 |
| TTHMHealth-basedReported 86 UG/L · MCL 0.08 | AR0000392 | Resolved | Apr 1, 2023through Jun 30, 2023 |
| TTHMHealth-basedReported 81 UG/L · MCL 0.08 | AR0000392 | Resolved | Jan 1, 2023through Mar 31, 2023 |
| Total Haloacetic Acids (HAA5)Health-basedReported 66 UG/L · MCL 0.06 | AR0000392 | Resolved | Jan 1, 2023through Mar 31, 2023 |
| TTHMHealth-basedReported 89 UG/L · MCL 0.08 | AR0000392 | Resolved | Jan 1, 2023through Mar 31, 2023 |
| TTHMHealth-basedReported 82 UG/L · MCL 0.08 | AR0000392 | Resolved | Oct 1, 2022through Dec 31, 2022 |
| TTHMHealth-basedReported 91 UG/L · MCL 0.08 | AR0000392 | Resolved | Oct 1, 2022through Dec 31, 2022 |
| Total Haloacetic Acids (HAA5)Health-basedReported 61 UG/L · MCL 0.06 | AR0000392 | Resolved | Jul 1, 2022through Sep 30, 2022 |
| TTHMHealth-basedReported 82 UG/L · MCL 0.08 | AR0000392 | Resolved | Jul 1, 2022through Sep 30, 2022 |
| Total Haloacetic Acids (HAA5)Health-basedReported 64 UG/L · MCL 0.06 | AR0000392 | Resolved | Jul 1, 2022through Sep 30, 2022 |
| Revised Total Coliform Rule | AR0000392 | Resolved | May 1, 2021through May 31, 2021 |
| Public Notice | AR0000392 | Resolved | Mar 1, 2021through May 10, 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 Mount Ida ZIP 71957 using 11.9 PPM nearby hardness and 4 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
Copper (90th percentile), TTHM, Total Haloacetic Acids (HAA5), LEAD AND COPPER RULE REVISIONS have 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 Mount Ida
Is tap water safe in Mount Ida?+
EPA ECHO reports 1 active health-based violation among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
How hard is the water?+
Nearby USGS observations produce an estimate of 11.9 PPM, or 0.7 grains per gallon, classified as soft. This is not a household tap measurement.
Do I need a water softener?+
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.