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City water profile

Los Ojos water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Los Ojos, New Mexico.

Median indexed hardness

91PPM

One indexed ZIP

Range 90.5–90.5 PPM

State comparison
137 PPM below
State hardness rank
#159 of 160
Matched utilities
3
Active health records
2

City summary

What the indexed records say

Los Ojos has 1 published ZIP profile across Rio Arriba County. The indexed median is 91 PPM, compared with 228 PPM across New Mexico.

Among the 160 New Mexicocities with an indexed median, Los Ojos ranks #159from highest to lowest. Across all 195 state ZIP profiles, available estimates run from 74.2to 688.5 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard1 ZIP
Hard0 ZIPs
Very hard0 ZIPs

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
14 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Oct 25, 2016 to Aug 4, 2023.

ZIP directory

Water reports in Los Ojos

Open a ZIP for site-level provenance and measurements.

ZIP code

87551

Moderately Hard

90.5 PPM

Nearest site
14 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Los Ojos Mdwca

PWSID NM3502921

Groundwater
System population served
237
Last reported
Jun 16, 2026

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

Rutheron Mutual Water Association

PWSID NM3502221

Groundwater influenced by surface water
System population served
90
Last reported
Jun 16, 2026

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

La Asociacion De Agua De Los Brazos

PWSID NM3566221

Groundwater
System population served
32
Last reported
Jun 16, 2026

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

Compliance history

What EPA records show

2 unique active health-based records appear among associated systems. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Public NoticeNM3566221Feb 28, 2026Unaddressed
Consumer Confidence RuleNM3502221Oct 1, 2025Unaddressed
Public NoticeNM3502921Aug 20, 2025Unaddressed
Surface Water Treatment RuleNM3502221Aug 1, 2025Resolved
Interim Enhanced Surface Water Treatment RuleNM3502221Aug 1, 2025Resolved
Consumer Confidence RuleNM3502221Jul 1, 2025Resolved
Lead and Copper RuleNM3566221Jul 1, 2025Resolved
Public NoticeNM3502221Jun 15, 2025Unaddressed
Interim Enhanced Surface Water Treatment RuleNM3502221May 1, 2025Resolved
Surface Water Treatment RuleNM3502221May 1, 2025Resolved

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Los Ojos

Is the water hard?

The indexed city median is 91 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.