Hardness
Moderately Hard
95 PPM · 5.6 GPG
Local water dashboard
Official source aggregationWater quality in Santa Fe, NM 87505
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Santa Fe County.
18 active health-based violations
- Primary matched system
- Santa Fe Water System (city Of)
- Source water
- Surface water + Groundwater
- County
- Santa Fe County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
18 active health-based records
Lead 90th percentile
0 mg/L
0% of action level
Utility match
10 systems
Serves 90,810 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
95 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
95
mg/L as CaCO₃ equivalent
Grains per gallon
5.6
1 GPG ≈ 17.1 PPM
What this means at home
At 95 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
27
Nearest site
7.5 mi
Observation range
Jan 25, 2016–Apr 2, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: GLORIETA CREEK PECO PIGEON RANCH UNIT, NM (Stream).USGS source documentation ↗
Regional context
Is 87505 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Santa Fe median
95 PPM
About the same3 indexed ZIP readings · Range 95–95 PPM
New Mexico median
228 PPM
133 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 mg/L
Reported Dec 31, 2026
Copper (CU90)
1.9 mg/L
Reported Dec 31, 2025
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
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 1.9
EPA limit 1.3
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 141
- Health-based
- 26
- Active health-based
- 18
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | NM3505126 | Unaddressed | Feb 28, 2026 |
| Revised Total Coliform Rule | NM3571426 | Resolved | Feb 1, 2026through Feb 28, 2026 |
| Groundwater RuleHealth-based | NM3580526 | Unaddressed | Jan 22, 2026 |
| Groundwater RuleHealth-based | NM3580526 | Unaddressed | Jan 22, 2026 |
| Groundwater RuleHealth-based | NM3580526 | Unaddressed | Jan 22, 2026 |
| Groundwater RuleHealth-based | NM3580526 | Unaddressed | Jan 22, 2026 |
| Groundwater RuleHealth-based | NM3580526 | Unaddressed | Jan 22, 2026 |
| Groundwater RuleHealth-based | NM3580526 | Unaddressed | Jan 22, 2026 |
| Groundwater RuleHealth-based | NM3580526 | Unaddressed | Jan 22, 2026 |
| Groundwater RuleHealth-based | NM3580526 | Unaddressed | Jan 22, 2026 |
| Groundwater RuleHealth-based | NM3580526 | Unaddressed | Jan 22, 2026 |
| Nitrate-NitriteHealth-basedReported 11 MG/L | NM3505226 | Unaddressed | Jan 1, 2026through Dec 31, 2026 |
| Lead and Copper Rule | NM3593226 | Unaddressed | Jan 1, 2026 |
| Revised Total Coliform Rule | NM3571426 | Resolved | Jan 1, 2026through Jan 31, 2026 |
| Lead and Copper Rule | NM3571426 | Unaddressed | Jan 1, 2026 |
| Lead and Copper Rule | NM3574826 | Unaddressed | Jan 1, 2026 |
| Public Notice | NM3593226 | Unaddressed | Dec 12, 2025 |
| Groundwater Rule | NM3580526 | Unaddressed | Oct 27, 2025 |
| Lead and Copper Rule | NM3572826 | Unaddressed | Oct 1, 2025 |
| Consumer Confidence Rule | NM3571426 | Unaddressed | Oct 1, 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 Santa Fe ZIP 87505 using 95 PPM nearby hardness and 2 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
Copper (90th percentile), Groundwater Rule, Nitrate-Nitrite 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.
Nearby indexed reports
Compare ZIPs in Santa Fe
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Santa Fe
Is tap water safe in Santa Fe?+
EPA ECHO reports 18 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 95 PPM, or 5.6 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.