TapSafetyReport
D37/100

CONGRESS DWID — Water Quality Report 2026

Serving 1,870 people · Arizona

Water Source
Groundwater
County
—
System ID
AZ0413021
Violations
63

Contaminant Test Results

EPA Violation History

7

Violations (last 5yr)

0

Unresolved

0

Health-Related

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: January 1, 2024 – January 31, 2024Rule: Stage 1 DBPREnforcement: 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 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
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: January 1, 2022 – March 31, 2022Rule: Stage 1 DBPREnforcement: 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: September 1, 2021 – August 31, 2022Rule: Stage 2 DBPREnforcement: 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: September 1, 2021 – August 31, 2022Rule: Stage 2 DBPREnforcement: 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, 2021 – September 30, 2021Rule: 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 CONGRESS DWID

Is CONGRESS DWID water safe to drink?

CONGRESS DWID water receives a grade of D (37/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 63 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has CONGRESS DWID detected?

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

Does CONGRESS DWID have any EPA violations?

Yes, CONGRESS DWID has 63 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, RPT, Other.

How many people does CONGRESS DWID serve?

CONGRESS DWID serves approximately 1,870 people, Arizona. The system provides water to 1 community: Congress.

What type of water does CONGRESS DWID provide?

CONGRESS DWID sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AZ0413021.

How does CONGRESS DWID compare to other utilities in Arizona?

CONGRESS DWID scores 37/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Arizona state page for a full comparison of water systems.

Cities Served

Congress