Hardness
Very Hard
453 PPM · 26.5 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 Chaves County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
453 PPM · 26.5 GPG
Compliance screen
Review needed
1 active health-based record
Lead 90th percentile
0.0036 mg/L
24% of action level
Utility match
4 systems
Serves 1,274 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
453 PPM
Parts per million
453
mg/L as CaCO₃ equivalent
Grains per gallon
26.5
1 GPG ≈ 17.1 PPM
What this means at home
At 453 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
89
Nearest site
16.8 mi
Observation range
Jul 3, 2016–Sep 19, 2024
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 16S.13E.09.224 2 (Spring).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.
Mayhill median
453 PPM
About the same1 indexed ZIP readings · Range 453–453 PPM
New Mexico median
228 PPM
225 PPM higher194 indexed ZIP readings · Range 74.2–688.5 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)
0.0036 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.
Measured in mg/L
Local 0.0036
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Chlorine | NM3571119 | Resolved | Nov 1, 2025through Nov 30, 2025 |
| Groundwater Rule | NM3510219 | Resolved | Sep 23, 2025through Dec 16, 2025 |
| Consumer Confidence Rule | NM3571119 | Resolved | Jul 1, 2025through Jul 9, 2025 |
| Consumer Confidence Rule | NM3513819 | Resolved | Jul 1, 2025through Jul 24, 2025 |
| Revised Total Coliform Rule | NM3510219 | Resolved | Apr 1, 2025through Apr 30, 2025 |
| Chlorine | NM3510219 | Resolved | Apr 1, 2025through Apr 30, 2025 |
| Groundwater RuleHealth-based | NM3513819 | Resolved | Nov 23, 2024through Nov 26, 2024 |
| Groundwater RuleHealth-based | NM3513819 | Resolved | Nov 23, 2024through Dec 2, 2024 |
| LEAD AND COPPER RULE REVISIONS | NM3510219 | Resolved | Oct 17, 2024through Feb 2, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | NM3510219 | Resolved | Oct 17, 2024through Feb 2, 2025 |
| Consumer Confidence Rule | NM3513819 | Resolved | Oct 1, 2024through Oct 7, 2024 |
| Public Notice | NM3513819 | Resolved | Apr 14, 2023through Jun 30, 2024 |
| Consumer Confidence Rule | NM3510219 | Resolved | Oct 1, 2022through Oct 20, 2022 |
| Public Notice | NM3513819 | Resolved | Aug 28, 2022through Sep 30, 2022 |
| Consumer Confidence Rule | NM3513819 | Resolved | Jul 1, 2022through Sep 26, 2022 |
| Public Notice | NM3571119 | Resolved | Jun 3, 2022through Jul 27, 2023 |
| Groundwater RuleHealth-based | NM3513819 | Resolved | Jan 7, 2022through Jan 10, 2023 |
| Groundwater RuleHealth-based | NM3513819 | Resolved | Jan 7, 2022through Mar 14, 2023 |
| Groundwater RuleHealth-based | NM3513819 | Resolved | Jan 7, 2022through Dec 9, 2022 |
| Groundwater RuleHealth-based | NM3513819 | Unaddressed | Jan 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
Matched to Mayhill ZIP 88339 using 453 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
453 PPM is 4× 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
Groundwater Rule 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 reports 1 active health-based violation among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
Nearby USGS observations produce an estimate of 453 PPM, or 26.5 grains per gallon, classified as very hard. This is not a household tap measurement.
At 453 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.