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F0/100

CUBA WATER SYSTEM — Water Quality Report 2026

Serving 1,789 people · New Mexico

Water Source
Groundwater
County
—
System ID
NM3509023
Violations
155

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
0.003 mg/L0.015 mg/LAbove Goal

EPA Violation History

35

Violations (last 5yr)

18

Unresolved

20

Health-Related

TIER 3Unresolved

Monitoring / Reporting Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: September 29, 2025Rule: Ground Water RuleVerify on EPA.gov
TIER 3Unresolved

Surface water treatment technique failure

When: July 1, 2025Enforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Violation related to Consumer Confidence Report

When: January 19, 2025Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Violation related to Consumer Confidence Report

When: January 19, 2025Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Violation related to Consumer Confidence Report

When: January 19, 2025Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Violation related to Consumer Confidence Report

When: January 19, 2025Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Violation related to Consumer Confidence Report

When: January 19, 2025Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Violation related to Consumer Confidence Report

When: January 19, 2025Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Violation related to Consumer Confidence Report

When: January 19, 2025Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Violation related to Consumer Confidence Report

When: January 19, 2025Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Violation related to Consumer Confidence Report

When: January 19, 2025Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Violation related to Consumer Confidence Report

When: January 19, 2025Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Violation related to Consumer Confidence Report

When: January 19, 2025Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Violation related to Consumer Confidence Report

When: January 19, 2025Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Surface water treatment technique failure

When: October 1, 2024Enforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Failed to issue ongoing public notification

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2024 – May 2, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: August 16, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Surface water treatment technique failure

When: July 1, 2024Enforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2022 – October 6, 2022Enforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: February 12, 2022 – August 31, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: January 10, 2022 – August 31, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved

Monitoring / Reporting Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: December 30, 2021Rule: Ground Water RuleVerify on EPA.gov
TIER 2Resolved

Violation related to Consumer Confidence Report

When: December 3, 2021 – April 4, 2023Rule: Consumer Confidence RuleEnforcement: Formal — state order issued
TIER 2Resolved

Violation related to Consumer Confidence Report

When: December 3, 2021 – March 30, 2023Rule: Consumer Confidence RuleEnforcement: Formal — state order issued
TIER 2Resolved

Violation related to Consumer Confidence Report

When: December 3, 2021 – March 30, 2023Rule: Consumer Confidence RuleEnforcement: Formal — state order issued
TIER 2Resolved

Violation related to Consumer Confidence Report

When: December 3, 2021 – August 21, 2024Rule: Consumer Confidence RuleEnforcement: Formal — state order issued
TIER 2Resolved

Violation related to Consumer Confidence Report

When: December 3, 2021Rule: Consumer Confidence RuleEnforcement: Formal — state order issued
TIER 2Resolved

Violation related to Consumer Confidence Report

When: December 3, 2021 – April 20, 2023Rule: Consumer Confidence RuleEnforcement: Formal — state order issued
TIER 2Resolved

Violation related to Consumer Confidence Report

When: December 3, 2021 – August 21, 2024Rule: Consumer Confidence RuleEnforcement: Formal — state order issued
TIER 2Resolved

Violation related to Consumer Confidence Report

When: December 3, 2021 – August 21, 2024Rule: Consumer Confidence RuleEnforcement: Formal — state order issued
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: November 5, 2021 – August 31, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Surface water treatment technique failure

When: October 1, 2021 – November 5, 2024Enforcement: Resolving — corrective action underway
TIER 3Resolved

Violation related to Consumer Confidence Report

When: September 7, 2021 – March 30, 2021Rule: Consumer Confidence RuleEnforcement: Formal — state order issued
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: July 25, 2021 – August 11, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2021 – July 22, 2022Enforcement: Resolving — corrective action underway

Understanding violation severity

Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.

Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly

Frequently Asked Questions About CUBA WATER SYSTEM

Is CUBA WATER SYSTEM water safe to drink?

CUBA WATER SYSTEM water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 155 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has CUBA WATER SYSTEM detected?

1 contaminants were tested in CUBA WATER SYSTEM's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does CUBA WATER SYSTEM have any EPA violations?

Yes, CUBA WATER SYSTEM has 155 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, TT. 49 are health-based violations.

How many people does CUBA WATER SYSTEM serve?

CUBA WATER SYSTEM serves approximately 1,789 people, New Mexico. The system provides water to 1 community: Cuba.

What type of water does CUBA WATER SYSTEM provide?

CUBA WATER SYSTEM sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NM3509023.

How does CUBA WATER SYSTEM compare to other utilities in New Mexico?

CUBA WATER SYSTEM scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our New Mexico state page for a full comparison of water systems.

Cities Served

Cuba