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City water profile

Carlsbad water quality

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

Median indexed hardness

583PPM

One indexed ZIP

Range 582.5–582.5 PPM

State comparison
355 PPM above
State hardness rank
#5 of 160
Matched utilities
4
Active health records
1

City summary

What the indexed records say

Carlsbad has 1 published ZIP profile across Eddy County. The indexed median is 583 PPM, compared with 228 PPM across New Mexico.

Among the 160 New Mexicocities with an indexed median, Carlsbad ranks #5from 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 hard0 ZIPs
Hard0 ZIPs
Very hard1 ZIP

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
11.3 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Oct 28, 2020 to Jun 30, 2025.

ZIP directory

Water reports in Carlsbad

Open a ZIP for site-level provenance and measurements.

ZIP code

88220

Very Hard

582.5 PPM

Nearest site
11.3 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Carlsbad Municipal Water System

PWSID NM3520608

Groundwater
System population served
33,626
Last reported
Jun 16, 2026

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

Otis Mdwca

PWSID NM3521308

Groundwater
System population served
4,464
Last reported
Jun 16, 2026

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

Happy Valley Cooperative Water Works

PWSID NM3520708

Groundwater
System population served
638
Last reported
Jun 16, 2026

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

Intrepid Potash West

PWSID NM3590708

Groundwater
System population served
71
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

1 unique active health-based record appears among associated systems. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Lead and Copper RuleNM3520708Jan 1, 2026Unaddressed
E. COLINM3521308Dec 20, 2025Unaddressed
Consumer Confidence RuleNM3521308Oct 1, 2025Resolved
Consumer Confidence RuleNM3520708Oct 1, 2025Unaddressed
Public NoticeNM3521308Aug 21, 2025Resolved
Consumer Confidence RuleNM3520708Jul 1, 2025Unaddressed
Lead and Copper RuleNM3520708Jul 1, 2025Unaddressed
Public NoticeNM3521308Jun 11, 2025Unaddressed
Revised Total Coliform RuleNM3521308Jun 1, 2025Resolved
ChlorineNM3521308Jun 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 Carlsbad

Is the water hard?

The indexed city median is 583 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.