F0/100

METROPOLITAN DWID - HUB — Water Quality Report 2026

Serving 4,252 people · Arizona

Water Source
Groundwater
County
System ID
AZ0410060
Violations
140

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

6

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 – August 5, 2024Rule: 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: January 1, 2024 – August 5, 2024Rule: Stage 2 DBPREnforcement: 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: April 1, 2023 – June 30, 2023Enforcement: 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: April 1, 2023 – June 30, 2023Enforcement: 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: 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 METROPOLITAN DWID - HUB

Is METROPOLITAN DWID - HUB water safe to drink?

METROPOLITAN DWID - HUB water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 140 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has METROPOLITAN DWID - HUB detected?

31 contaminants were tested in METROPOLITAN DWID - HUB's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does METROPOLITAN DWID - HUB have any EPA violations?

Yes, METROPOLITAN DWID - HUB has 140 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MCL, Other. 2 are health-based violations.

How many people does METROPOLITAN DWID - HUB serve?

METROPOLITAN DWID - HUB serves approximately 4,252 people, Arizona. The system provides water to 1 community: Tucson.

What type of water does METROPOLITAN DWID - HUB provide?

METROPOLITAN DWID - HUB sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AZ0410060.

How does METROPOLITAN DWID - HUB compare to other utilities in Arizona?

METROPOLITAN DWID - HUB scores 0/100 with a grade of F (failing). 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