B61/100

PETRIFIED FOREST NP — Water Quality Report 2026

Serving 1,742 people · Arizona

Water Source

Purchased Groundwater

County

—

System ID

AZ0401704

Violations

Contaminant Test Results

EPA Violation History

Violations (last 5yr)

Unresolved

Health-Related

TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

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

When: January 1, 2025 – December 31, 2025Rule: Stage 2 DBPRVerify on EPA.gov

TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

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

When: January 1, 2025 – December 31, 2025Rule: Stage 2 DBPRVerify on EPA.gov

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: February 16, 2024 – March 25, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: February 11, 2024 – March 25, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: November 4, 2023 – March 20, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Unresolved

Surface water treatment technique failure

When: October 2, 2023Enforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

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

When: July 1, 2023 – September 30, 2023Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 3Unresolved

Surface water treatment technique failure

When: July 1, 2023Enforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Failed to issue initial public notification

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

When: July 1, 2023 – August 23, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to issue initial public notification

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

When: January 1, 2023 – August 23, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

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

When: October 1, 2022 – December 31, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring / Reporting Violation

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

When: October 1, 2022 – November 30, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

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

When: July 1, 2022 – September 30, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to issue initial public notification

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

When: July 1, 2022 – August 4, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

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

When: April 1, 2022 – June 30, 2022Rule: Stage 1 DBPREnforcement: 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 PETRIFIED FOREST NP

Is PETRIFIED FOREST NP water safe to drink?

PETRIFIED FOREST NP water receives a grade of B (61/100), which is considered good. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.

What contaminants has PETRIFIED FOREST NP detected?

1 contaminants were tested in PETRIFIED FOREST NP's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does PETRIFIED FOREST NP have any EPA violations?

Yes, PETRIFIED FOREST NP has 35 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, MCL. 1 are health-based violations.

How many people does PETRIFIED FOREST NP serve?

PETRIFIED FOREST NP serves approximately 1,742 people, Arizona. The system provides water to 1 community: Holbrook.

What type of water does PETRIFIED FOREST NP provide?

PETRIFIED FOREST NP sources its water from purchased groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AZ0401704.

How does PETRIFIED FOREST NP compare to other utilities in Arizona?

PETRIFIED FOREST NP scores 61/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Arizona state page for a full comparison of water systems.

Cities Served

Holbrook