Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationRegional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Taos County.
Your tap water
Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.
Utility hardness unavailable in this index
Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.
Find an official utility report →At a glance
EPA quarter 2026Q2
Utility-reported hardness
Unavailable
Ask your provider or test your tap
All possible systems
Review needed
1 active health-based record
Measurements by utility
Each result belongs to a specific system.
Utility match
3 systems
Serves 500 people system-wide
Match the name on your water bill
These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.
EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.
NM3501421 · Groundwater · 500 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
EPA SDWIS Lead and Copper Rule samples
10% of the listed benchmark
Monitoring period: Jan 1, 2026 to Jun 30, 2026
| Rule | Status | Period |
|---|---|---|
| Public Notice | Unaddressed | Feb 20, 2026 |
| Lead and Copper Rule | Resolved | Jul 1, 2025 to Dec 17, 2025 |
| LEAD AND COPPER RULE REVISIONS | Resolved | Oct 17, 2024 to Sep 4, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Resolved | Oct 17, 2024 to Sep 4, 2025 |
| Lead and Copper Rule | Resolved | Oct 1, 2024 to Dec 17, 2025 |
NM3500721 · Groundwater · 159 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
1 reported active health-based record(s) for this system
Find this utility’s official report →An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
EPA SDWIS Lead and Copper Rule samples
25% of the listed benchmark
Monitoring period: Jan 1, 2017 to Dec 31, 2019
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Unaddressed | Oct 1, 2025 |
| Public Notice | Unaddressed | Aug 23, 2025 |
| Lead and Copper Rule | Resolved | Oct 1, 2022 to Jul 7, 2023 |
| Public Notice | Resolved | Feb 21, 2021 to Dec 10, 2021 |
| Public Notice | Resolved | Feb 12, 2021 to Nov 12, 2021 |
| Public Notice | Unaddressed | Dec 3, 2011 |
| Public Notice | Unaddressed | Dec 3, 2011 |
| Surface Water Treatment RuleHealth-based | Addressed | Jan 1, 1992 |
NM3502621 · Groundwater · 129 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
EPA SDWIS Lead and Copper Rule samples
23% of the listed benchmark
Monitoring period: Jan 1, 2026 to Jun 30, 2026
| Rule | Status | Period |
|---|---|---|
| Public Notice | Unaddressed | Feb 14, 2026 |
| Lead and Copper Rule | Unaddressed | Sep 29, 2025 |
| Consumer Confidence Rule | Resolved | Jul 1, 2025 to Jul 30, 2025 |
| LEAD AND COPPER RULE REVISIONS | Resolved | Oct 17, 2024 to Mar 3, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Resolved | Oct 17, 2024 to Mar 3, 2025 |
| Lead and Copper Rule | Resolved | Oct 1, 2024 to Jun 25, 2025 |
| Consumer Confidence Rule | Resolved | Jul 1, 2024 to Sep 24, 2024 |
| Lead and Copper Rule | Unaddressed | Dec 30, 2015 |
Hardness meter
350
PPM as CaCO₃
Very Hard
PPM
350
GPG
20.5
Regional environmental evidence
USGS hardness classification scale
350 PPM
Parts per million
350
mg/L as CaCO₃ equivalent
Grains per gallon
20.5
1 GPG ≈ 17.1 PPM
How to use regional evidence
These samples describe nearby environmental water. They cannot establish whether your tap water is soft or hard. Use a utility result or a tap test for appliance settings and treatment sizing.
USGS sites used
1
Nearest site
21.5 mi
Observation range
Aug 10, 2021–Aug 10, 2021
Regional evidence confidence
Low
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: 25N.13E.17.323 (Well).USGS source documentation ↗Evidence tier: Regional environmental evidence. This value is not used as proof of the serving utility's treated-water hardness.
Regional context
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Dixon median
305 PPM
45 PPM higher2 indexed ZIP readings · Range 260–350 PPM
New Mexico median
206 PPM
144 PPM higher157 indexed ZIP readings · Range 2.1–1435 PPM
Evidence-first next steps
This profile can help you ask the right question. It cannot select equipment for a property without a current result from the serving utility or the tap.
ZIP boundaries and utility service areas do not perfectly match. Verify the system on a water bill before relying on system-wide records.
An active health-based record is present. Follow the utility's current notice and public-health instructions.
Find an official utility report →Use a tap hardness test before sizing a softener. For health concerns, use a certified laboratory and the correct sampling protocol.
Convert your hardness test result →Nearby indexed reports
Estimates can differ across a city because monitoring locations and associated systems differ.
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.
Utility-reported hardness is unavailable in this index. Regional samples do not establish tap-water hardness. Ask your provider or test your tap.
Confirm hardness at your tap and consider actual scale or spotting before choosing treatment. Regional environmental values cannot determine whether you need a softener. A softener addresses hardness, not every contaminant.