F0/100

Kayenta Sandstone Housing — Water Quality Report 2026

Serving 1,375 people · New Mexico

Water Source

Groundwater

County

—

System ID

NN0400815

Violations

124

Contaminant Test Results

1 contaminant above EPA health goals

Contaminant	Detected	Limit (MCL)	Goal (MCLG)	Status
Lead (90th percentile)	0.005 mg/L	0.015 mg/L	0 mg/L	Above Goal

EPA Violation History

Violations (last 5yr)

Unresolved

Health-Related

TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: March 1, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Monitoring Violation

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

When: March 1, 2025 – March 18, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: September 1, 2024 – November 12, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: August 1, 2024 – November 12, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: July 1, 2024 – November 12, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: June 1, 2024 – July 1, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring Violation

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

When: June 1, 2024 – June 30, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: May 1, 2024 – July 1, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring Violation

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

When: May 1, 2024 – May 31, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: April 1, 2024 – July 1, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring Violation

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

When: April 1, 2024 – April 30, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: February 1, 2024 – March 27, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2024 – December 31, 2024Enforcement: Resolving — corrective action underway

TIER 3Resolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2024 – December 31, 2024Enforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring Violation

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

When: December 1, 2023 – December 31, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring Violation

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

When: November 1, 2023 – November 30, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: July 1, 2023 – August 17, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2023 – October 17, 2024Enforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: April 1, 2023 – August 17, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2022 – July 13, 2022Enforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: May 1, 2022 – July 12, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: April 1, 2022 – July 26, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: February 1, 2022 – April 5, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: December 1, 2021 – February 1, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: November 1, 2021 – February 1, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: September 1, 2021 – November 3, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: August 1, 2021 – November 3, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: July 1, 2021 – November 3, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2021 – March 30, 2022Enforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: June 1, 2021 – July 21, 2021Rule: Total Coliform RuleEnforcement: 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 Kayenta Sandstone Housing

Is Kayenta Sandstone Housing water safe to drink?

Kayenta Sandstone Housing water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 124 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has Kayenta Sandstone Housing detected?

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

Does Kayenta Sandstone Housing have any EPA violations?

Yes, Kayenta Sandstone Housing has 124 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MON, RPT.

How many people does Kayenta Sandstone Housing serve?

Kayenta Sandstone Housing serves approximately 1,375 people, New Mexico. The system provides water to 1 community: Kayenta.

What type of water does Kayenta Sandstone Housing provide?

Kayenta Sandstone Housing sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NN0400815.

How does Kayenta Sandstone Housing compare to other utilities in New Mexico?

Kayenta Sandstone Housing 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

Kayenta