City water profile

Water hardness in Gallup

Find official utility reports, understand hardness, and check the water system serving your home in Gallup, New Mexico.

Utility-reported hardness

Not yet available

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State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 7
Active health records: 16

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 →

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.

Gallup Water System

NM3508317 · Groundwater · 20,880 people served system-wide

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

8 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: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2021 to Dec 31, 2023

Violation history (13)

Imported violation history for Gallup Water System
Rule	Status	Period
Groundwater RuleHealth-based	Unaddressed	Jan 1, 2026
Groundwater RuleHealth-based	Unaddressed	Jan 1, 2026
Groundwater RuleHealth-based	Unaddressed	Jan 1, 2026
Groundwater RuleHealth-based	Unaddressed	Jan 1, 2026
Groundwater RuleHealth-based	Unaddressed	Jan 1, 2026
Groundwater RuleHealth-based	Unaddressed	Jan 1, 2026
Groundwater RuleHealth-based	Unaddressed	Jan 1, 2026
Groundwater RuleHealth-based	Unaddressed	Jan 1, 2026
Groundwater Rule	Unaddressed	Apr 1, 2025
Consumer Confidence Rule	Resolved	Oct 1, 2024 to Mar 4, 2025
Public Notice	Unaddressed	Aug 23, 2024
Groundwater Rule	Resolved	Apr 1, 2024 to Oct 3, 2024
Public Notice	Resolved	Jul 10, 2021 to Sep 14, 2021

White Cliffs Mdwua

NM3500117 · Groundwater · 323 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: 0.002 mg/L
Action level: 0.015 mg/L

13% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (4)

Imported violation history for White Cliffs Mdwua
Rule	Status	Period
Public Notice	Unaddressed	Dec 19, 2025
Groundwater Rule	Resolved	Nov 24, 2024 to Feb 18, 2025
Revised Total Coliform Rule	Resolved	Sep 1, 2024 to Sep 30, 2024
Public Notice	Resolved	Oct 9, 2021 to Nov 29, 2021

Coal Basin Dwua

NM3508217 · Groundwater · 116 people served system-wide

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

3 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: 0.003 mg/L
Action level: 0.015 mg/L

20% of the listed benchmark

Monitoring period: Jan 1, 2024 to Jun 30, 2024

Violation history (10)

Imported violation history for Coal Basin Dwua
Rule	Status	Period
Lead and Copper Rule	Unaddressed	Oct 1, 2025
Public Notice	Unaddressed	Aug 23, 2025
Groundwater RuleHealth-based	Unaddressed	Oct 23, 2024
Groundwater RuleHealth-based	Resolved	Oct 23, 2024 to May 22, 2025
Groundwater RuleHealth-based	Resolved	Oct 23, 2024 to May 22, 2025
Groundwater RuleHealth-based	Unaddressed	Oct 23, 2024
Groundwater RuleHealth-based	Unaddressed	Oct 23, 2024
Lead and Copper Rule	Resolved	Jan 1, 2023 to Jun 19, 2023
Lead and Copper Rule	Resolved	Jul 1, 2022 to Jun 19, 2023
Consumer Confidence Rule	Unaddressed	Jul 1, 2001

D & S Trailer Ranch

NM3559717 · Groundwater · 109 people served system-wide

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

2 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: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2011 to Dec 31, 2013

Violation history (9)

Imported violation history for D & S Trailer Ranch
Rule	Status	Period
Groundwater RuleHealth-based	Resolved	Oct 23, 2024 to Nov 11, 2024
Consumer Confidence Rule	Resolved	Oct 1, 2022 to Dec 23, 2022
Consumer Confidence Rule	Resolved	Jul 1, 2022 to Dec 23, 2022
Public Notice	Resolved	Jun 2, 2022 to Dec 22, 2022
Consumer Confidence Rule	Resolved	Oct 1, 2021 to Dec 23, 2022
Consumer Confidence Rule	Resolved	Jul 1, 2021 to Dec 22, 2022
Groundwater RuleHealth-based	Unaddressed	Feb 26, 2020
Groundwater RuleHealth-based	Unaddressed	Feb 26, 2020
Groundwater Rule	Unaddressed	Dec 1, 2019

Block A Well Co-Op

NM3532517 · Groundwater · 92 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: 0.003 mg/L
Action level: 0.015 mg/L

20% of the listed benchmark

Monitoring period: Jan 1, 2020 to Dec 31, 2022

Violation history (18)

Imported violation history for Block A Well Co-Op
Rule	Status	Period
Consumer Confidence Rule	Resolved	Oct 1, 2025 to Feb 10, 2026
Lead and Copper Rule	Unaddressed	Oct 1, 2025
Groundwater RuleHealth-based	Resolved	May 17, 2024 to Nov 22, 2024
Groundwater RuleHealth-based	Resolved	May 17, 2024 to Nov 22, 2024
Groundwater RuleHealth-based	Resolved	May 17, 2024 to Mar 16, 2025
Groundwater RuleHealth-based	Resolved	May 17, 2024 to Aug 5, 2024
Groundwater RuleHealth-based	Resolved	May 17, 2024 to May 30, 2025
Groundwater RuleHealth-based	Resolved	May 17, 2024 to Aug 5, 2024
Groundwater RuleHealth-based	Resolved	May 17, 2024 to Nov 23, 2024
Groundwater RuleHealth-based	Resolved	May 17, 2024 to Aug 5, 2024
Groundwater RuleHealth-based	Resolved	May 17, 2024 to Aug 12, 2024
Public Notice	Resolved	Mar 3, 2024 to Mar 6, 2024
Public Notice	Resolved	Mar 3, 2024 to Mar 6, 2024
Public Notice	Resolved	Mar 3, 2024 to Mar 6, 2024
Public Notice	Resolved	Mar 3, 2024 to Mar 6, 2024
Revised Total Coliform Rule	Resolved	Sep 1, 2023 to Sep 30, 2023
Revised Total Coliform Rule	Resolved	Aug 1, 2023 to Aug 31, 2023
Revised Total Coliform Rule	Resolved	Jul 1, 2023 to Jul 31, 2023

Cedar Ridge Trailer Park

NM3559417 · Groundwater · 65 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: 0.003 mg/L
Action level: 0.015 mg/L

20% of the listed benchmark

Monitoring period: Jul 1, 2025 to Dec 31, 2025

Violation history (9)

Imported violation history for Cedar Ridge Trailer Park
Rule	Status	Period
Lead and Copper Rule	Unaddressed	Sep 29, 2025
Consumer Confidence Rule	Resolved	Jul 1, 2025 to Aug 12, 2025
Groundwater RuleHealth-based	Resolved	Oct 23, 2024 to Dec 30, 2024
Groundwater RuleHealth-based	Resolved	Oct 23, 2024 to Dec 20, 2024
Groundwater RuleHealth-based	Resolved	Oct 23, 2024 to Dec 20, 2024
Groundwater RuleHealth-based	Resolved	Oct 23, 2024 to Dec 20, 2024
Groundwater RuleHealth-based	Resolved	Oct 23, 2024 to Dec 20, 2024
Groundwater RuleHealth-based	Resolved	Oct 23, 2024 to Dec 24, 2024
Lead and Copper Rule	Resolved	Oct 1, 2024 to May 12, 2025

Manuelito Navajo Childrens Home

NM3560617 · Groundwater · 35 people served system-wide

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

3 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: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2021 to Dec 31, 2023

Violation history (27)

Imported violation history for Manuelito Navajo Childrens Home
Rule	Status	Period
Chlorine	Resolved	Jan 1, 2026 to Jan 31, 2026
Chlorine	Resolved	Oct 1, 2025 to Oct 31, 2025
Chlorine	Resolved	Sep 1, 2025 to Sep 30, 2025
Chlorine	Resolved	Jul 1, 2025 to Jul 31, 2025
Chlorine	Archived	Jun 1, 2025 to Jun 30, 2025
Chlorine	Archived	May 1, 2025 to May 31, 2025
Chlorine	Archived	Apr 1, 2025 to Apr 30, 2025
Chlorine	Archived	Mar 1, 2025 to Mar 31, 2025
Groundwater RuleHealth-based	Unaddressed	Feb 19, 2025
Groundwater RuleHealth-based	Unaddressed	Feb 19, 2025
Groundwater RuleHealth-based	Unaddressed	Feb 19, 2025
Chlorine	Archived	Feb 1, 2025 to Feb 28, 2025
Chlorine	Archived	Jan 1, 2025 to Jan 31, 2025
Chlorine	Archived	Dec 1, 2024 to Dec 31, 2024
Chlorine	Archived	Nov 1, 2024 to Nov 30, 2024
Chlorine	Archived	Oct 1, 2024 to Oct 31, 2024
Chlorine	Archived	Sep 1, 2024 to Sep 30, 2024
Chlorine	Archived	Aug 1, 2024 to Aug 31, 2024
Chlorine	Archived	Jul 1, 2024 to Jul 31, 2024
Chlorine	Archived	Jun 1, 2024 to Jun 30, 2024
Chlorine	Archived	May 1, 2024 to May 31, 2024
Chlorine	Archived	Apr 1, 2024 to Apr 30, 2024
Consumer Confidence Rule	Resolved	Oct 1, 2022 to Feb 8, 2023
Consumer Confidence Rule	Resolved	Jul 1, 2022 to Jan 1, 2023
Public Notice	Resolved	Mar 23, 2022 to Feb 7, 2023
Consumer Confidence Rule	Resolved	Oct 1, 2021 to Feb 8, 2023
Consumer Confidence Rule	Resolved	Jul 1, 2021 to Jan 19, 2023

City summary

What the indexed records say

Gallup has 1 published ZIP profile across Mckinley County. The regional-evidence median is 18 PPM. The city does not meet the stricter comparison standard.

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

Soft1 ZIP

Moderately hard0 ZIPs

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: 2.2 miles
Profiles with evidence: 1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Jul 13, 2017 to Apr 26, 2021.

ZIP directory

Water reports in Gallup

Open a ZIP for site-level provenance and measurements.

ZIP code

87301

Soft

18.3 PPM

Nearest site: 2.2 mi
Confidence: Moderate

View full ZIP evidence →

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other New Mexico communities

Continental Divide

Mckinley County

405 PPM median

Gamerco

Mckinley County

18 PPM median

Jamestown

Mckinley County

69 PPM median

Thoreau

Mckinley County

258 PPM median

Nageezi

San Juan County

24 PPM median

Gallina

Rio Arriba County

29 PPM median

Search all 161 New Mexico cities →

Questions people ask

About water in Gallup

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

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.