How hard is the water in Arroyo Hondo, NM?

Utility-reported hardness is unavailable in this index. Regional environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

Local water dashboard

Official source aggregation

Water quality in Arroyo Hondo, NM 87513

Q: Is tap water safe in Arroyo Hondo?

EPA SDWIS reports 4 active health-based violation record(s) among systems associated with this ZIP. Review your utility's current notice and Consumer Confidence Report.

Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Taos County.

4 active health-based record(s) across possible systems

Largest possible serving system: Lower Des Montes Mdwca
Source water: Groundwater
County: Taos County
Profile updated: Jun 16, 2026

Your tap water

What does the utility report?

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 →

Convert a hardness result →Test your tap →

At a glance

What the current records say

EPA quarter 2026Q2

Utility-reported hardness

Unavailable

Ask your provider or test your tap

All possible systems

Review needed

4 active health-based records

Measurements by utility

Choose your provider

Each result belongs to a specific system.

Utility match

3 systems

Serves 319 people system-wide

Match the name on your water bill

Your utility’s measurements and compliance records

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.

Lower Des Montes Mdwca

NM3574729 · Groundwater · 319 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 →

Measurements (1)

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.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.0038 mg/L
Action level: 0.015 mg/L

25% of the listed benchmark

Monitoring period: Jan 1, 2026 to Jun 30, 2026

Violation history (10)

Imported violation history for Lower Des Montes Mdwca
Rule	Status	Period
Lead and Copper Rule	Unaddressed	Oct 1, 2025
Public Notice	Resolved	Mar 7, 2025 to Jul 1, 2025
LEAD AND COPPER RULE REVISIONSHealth-based	Resolved	Oct 17, 2024 to Mar 4, 2025
LEAD AND COPPER RULE REVISIONS	Resolved	Oct 17, 2024 to Mar 4, 2025
Consumer Confidence Rule	Resolved	Jul 1, 2023 to Jul 19, 2023
Consumer Confidence Rule	Resolved	Jul 1, 2022 to Oct 11, 2022
Chlorine	Resolved	Apr 1, 2022 to Jun 30, 2022
Revised Total Coliform Rule	Resolved	Apr 1, 2022 to Apr 30, 2022
Lead and Copper Rule	Resolved	Oct 1, 2021 to Jun 29, 2022
Public Notice	Unaddressed	Apr 13, 2013

Upper Arroyo Hondo Mdwca

NM3507829 · Groundwater · 195 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

4 reported active health-based record(s) for this system

Find this utility’s official report →

Measurements (1)

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.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 9.0e-4 mg/L
Action level: 0.015 mg/L

6% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (30)

Imported violation history for Upper Arroyo Hondo Mdwca
Rule	Status	Period
LEAD AND COPPER RULE REVISIONS	Addressed	Oct 17, 2024
LEAD AND COPPER RULE REVISIONSHealth-based	Addressed	Oct 17, 2024
Public Notice	Unaddressed	Oct 4, 2024
Consumer Confidence Rule	Resolved	Jul 1, 2024 to Sep 12, 2024
Consumer Confidence Rule	Resolved	Jul 1, 2023 to Sep 26, 2023
Public Notice	Unaddressed	May 21, 2023
Groundwater RuleHealth-based	Unaddressed	Feb 2, 2023
Groundwater RuleHealth-based	Unaddressed	Feb 2, 2023
Groundwater RuleHealth-based	Resolved	Feb 2, 2023 to Jan 9, 2025
Groundwater RuleHealth-based	Resolved	Feb 2, 2023 to Jan 9, 2025
Groundwater RuleHealth-based	Unaddressed	Feb 2, 2023
Groundwater Rule	Unaddressed	Nov 7, 2022
Consumer Confidence Rule	Resolved	Jul 1, 2022 to Oct 12, 2022
Public Notice	Resolved	Jun 3, 2022 to Jul 27, 2023
Revised Total Coliform Rule	Resolved	Apr 1, 2022 to Apr 30, 2022
Chlorine	Resolved	Apr 1, 2022 to Jun 30, 2022
Consumer Confidence Rule	Resolved	Oct 1, 2021 to Oct 6, 2021
Public Notice	Unaddressed	Oct 25, 2013
Public Notice	Unaddressed	Nov 24, 2012
Public Notice	Unaddressed	Nov 3, 2012
Public Notice	Unaddressed	Sep 8, 2011
Public Notice	Unaddressed	Jul 8, 2011
Public Notice	Unaddressed	Mar 20, 2011
Public Notice	Unaddressed	Mar 20, 2011
Public Notice	Unaddressed	Mar 20, 2011
Public Notice	Unaddressed	Mar 20, 2011
Public Notice	Unaddressed	Mar 20, 2011
Public Notice	Unaddressed	Mar 20, 2011
Public Notice	Unaddressed	Mar 20, 2011
Public Notice	Unaddressed	Mar 20, 2011

Lower Arroyo Hondo Mdwca

NM3505429 · Groundwater · 180 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 →

Measurements (1)

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.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.014 mg/L
Action level: 0.015 mg/L

93% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Hardness meter

What does nearby environmental evidence show?

Very Hard

226.5

PPM as CaCO₃

Very Hard

PPM

226.5

GPG

13.2

Regional environmental evidence

USGS hardness classification scale

226.5 PPM

Soft
0–60Moderate
61–120Hard
121–180Very hard
181+

Parts per million

226.5

mg/L as CaCO₃ equivalent

Grains per gallon

13.2

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

Nearest site

14.4 mi

Observation range

Oct 25, 2016–Aug 10, 2021

Regional evidence confidence

Moderate

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

Is 87513 typical?

These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.

Arroyo Hondo median

227 PPM

About the same

1 indexed ZIP readings · Range 226.5–226.5 PPM

New Mexico median

206 PPM

21 PPM higher

157 indexed ZIP readings · Range 2.1–1435 PPM

Evidence-first next steps

Confirm the problem before choosing treatment

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.

Confirm the serving system

ZIP boundaries and utility service areas do not perfectly match. Verify the system on a water bill before relying on system-wide records.

Read the current utility report

An active health-based record is present. Follow the utility's current notice and public-health instructions.

Find an official utility report →

Test for the decision you face

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 →

Frequently asked

Water questions for Arroyo Hondo

Is tap water safe in Arroyo Hondo?+

EPA ECHO reports 4 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?+

Utility-reported hardness is unavailable in this index. Regional samples do not establish tap-water hardness. Ask your provider or test your tap.

Do I need a water softener?+

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.