Hardness
Moderately Hard
105 PPM · 6.1 GPG
Local water dashboard
Official source aggregationWater quality in Las Vegas, NM 87701
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for San Miguel County.
9 active health-based violations
- Primary matched system
- Las Vegas (city Of)
- Source water
- Surface water + Groundwater
- County
- San Miguel County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
9 active health-based records
Lead 90th percentile
0.0064 mg/L
43% of action level
Utility match
4 systems
Serves 14,530 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
105 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
105
mg/L as CaCO₃ equivalent
Grains per gallon
6.1
1 GPG ≈ 17.1 PPM
What this means at home
At 105 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
21
Nearest site
22.8 mi
Observation range
Jun 27, 2018–Apr 16, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: GALLINAS RIVER DOWNSTREAM OF 08380500-4 (Stream).USGS source documentation ↗
Regional context
Is 87701 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Las Vegas median
105 PPM
About the same1 indexed ZIP readings · Range 105–105 PPM
New Mexico median
228 PPM
123 PPM lower194 indexed ZIP readings · Range 74.2–688.5 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 pass1 fail
Lead (PB90)
0.0064 mg/L
Reported Dec 31, 2027
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.0064
EPA limit 0.015
TTHM
Measured in MG/L
Local 0.087
EPA limit 0.08
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 121
- Health-based
- 64
- Active health-based
- 9
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Consumer Confidence Rule | NM3500525 | Unaddressed | Oct 1, 2025 |
| Groundwater RuleHealth-based | NM3500525 | Resolved | Sep 13, 2025through Mar 17, 2026 |
| Groundwater RuleHealth-based | NM3500525 | Unaddressed | Sep 13, 2025 |
| Groundwater RuleHealth-based | NM3500525 | Unaddressed | Sep 13, 2025 |
| Groundwater RuleHealth-based | NM3500525 | Unaddressed | Sep 13, 2025 |
| Groundwater RuleHealth-based | NM3500525 | Unaddressed | Sep 13, 2025 |
| Groundwater RuleHealth-based | NM3500525 | Unaddressed | Sep 13, 2025 |
| Groundwater RuleHealth-based | NM3500525 | Unaddressed | Sep 13, 2025 |
| Groundwater RuleHealth-based | NM3500525 | Resolved | Sep 13, 2025through Mar 17, 2026 |
| Groundwater RuleHealth-based | NM3500525 | Unaddressed | Sep 13, 2025 |
| Groundwater RuleHealth-based | NM3500525 | Unaddressed | Sep 13, 2025 |
| Groundwater RuleHealth-based | NM3518025 | Resolved | Aug 1, 2025through Nov 4, 2025 |
| Groundwater RuleHealth-based | NM3518025 | Resolved | Aug 1, 2025through Nov 4, 2025 |
| Groundwater RuleHealth-based | NM3518025 | Resolved | Aug 1, 2025through Apr 23, 2024 |
| Groundwater RuleHealth-based | NM3518025 | Resolved | Aug 1, 2025through Nov 4, 2025 |
| Groundwater RuleHealth-based | NM3518025 | Resolved | Aug 1, 2025through Mar 19, 2026 |
| Groundwater RuleHealth-based | NM3518025 | Resolved | Aug 1, 2025through Nov 4, 2025 |
| Groundwater RuleHealth-based | NM3518025 | Resolved | Aug 1, 2025through Nov 4, 2025 |
| Consumer Confidence Rule | NM3519325 | Unaddressed | Jul 1, 2025 |
| Lead and Copper Rule | NM3519325 | Resolved | Jul 1, 2025through Dec 31, 2025 |
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 Las Vegas ZIP 87701 using 105 PPM nearby hardness and 2 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
TTHM, 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
Water questions for Las Vegas
Is tap water safe in Las Vegas?+
EPA ECHO reports 9 active health-based violations 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 105 PPM, or 6.1 grains per gallon, classified as moderately hard. 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.