Hardness
Very Hard
266.5 PPM · 15.6 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 East Carroll Parish.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
266.5 PPM · 15.6 GPG
Compliance screen
Review needed
17 active health-based records
Lead 90th percentile
0.001 mg/L
7% of action level
Utility match
1 system
Serves 5,850 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
266.5 PPM
Parts per million
266.5
mg/L as CaCO₃ equivalent
Grains per gallon
15.6
1 GPG ≈ 17.1 PPM
What this means at home
At 266.5 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
50
Nearest site
8 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: 055C0045 ISSAQUENA (Well).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.
Lake Providence median
267 PPM
About the same1 indexed ZIP readings · Range 266.5–266.5 PPM
Louisiana median
90 PPM
177 PPM higher102 indexed ZIP readings · Range 4.8–314 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)
0.001 mg/L
Reported Dec 31, 2025
Copper (CU90)
1.5 mg/L
Reported Dec 31, 2024
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0.001
EPA limit 0.015
Measured in mg/L
Local 1.5
EPA limit 1.3
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Groundwater RuleHealth-based | LA1035002 | Unaddressed | Feb 9, 2026 |
| Groundwater RuleHealth-based | LA1035002 | Unaddressed | Feb 9, 2026 |
| Groundwater RuleHealth-based | LA1035002 | Unaddressed | Feb 9, 2026 |
| Groundwater RuleHealth-based | LA1035002 | Unaddressed | Feb 9, 2026 |
| LEAD AND COPPER RULE REVISIONS | LA1035002 | Resolved | Oct 17, 2024through Dec 2, 2024 |
| LEAD AND COPPER RULE REVISIONSHealth-based | LA1035002 | Resolved | Oct 17, 2024through Feb 11, 2025 |
| Consumer Confidence Rule | LA1035002 | Resolved | Jul 1, 2024through Jun 5, 2024 |
| Public Notice | LA1035002 | Resolved | Feb 11, 2024through Nov 13, 2025 |
| Lead and Copper Rule | LA1035002 | Resolved | Oct 1, 2023through Feb 3, 2025 |
| Public Notice | LA1035002 | Resolved | Sep 20, 2023through Nov 13, 2025 |
| Groundwater RuleHealth-based | LA1035002 | Unaddressed | Aug 7, 2023 |
| Groundwater RuleHealth-based | LA1035002 | Unaddressed | Aug 7, 2023 |
| Groundwater RuleHealth-based | LA1035002 | Unaddressed | Aug 7, 2023 |
| Groundwater RuleHealth-based | LA1035002 | Unaddressed | Aug 7, 2023 |
| Groundwater RuleHealth-based | LA1035002 | Unaddressed | Aug 7, 2023 |
| Groundwater RuleHealth-based | LA1035002 | Unaddressed | Aug 7, 2023 |
| Groundwater RuleHealth-based | LA1035002 | Unaddressed | Aug 7, 2023 |
| Groundwater RuleHealth-based | LA1035002 | Resolved | Aug 7, 2023through Jan 4, 2024 |
| Lead and Copper Rule | LA1035002 | Unaddressed | Jan 14, 2023 |
| Groundwater RuleHealth-based | LA1035002 | Resolved | Jul 30, 2021through Aug 4, 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
Matched to Lake Providence ZIP 71254 using 266.5 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
266.5 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 systemsDrinking water protection
Copper (90th percentile), Groundwater Rule 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
EPA ECHO reports 17 active health-based violations among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
Nearby USGS observations produce an estimate of 266.5 PPM, or 15.6 grains per gallon, classified as very hard. This is not a household tap measurement.
At 266.5 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.