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F0/100

SOMERTON CITY OF — Water Quality Report 2026

Serving 14,197 people · Arizona

Water Source
Groundwater
County
—
System ID
AZ0414015
Violations
156

Contaminant Test Results

3 contaminants above EPA health goals
ContaminantDetectedLimit (MCL)Status
strontium
2100.00 µg/L—Above Goal
chlorate
280.00 µg/L—Above Goal
Lead (90th percentile)
0.001 mg/L0.015 mg/LAbove Goal

EPA Violation History

5

Violations (last 5yr)

0

Unresolved

0

Health-Related

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 – August 20, 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: March 1, 2023 – July 5, 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: February 1, 2023 – July 5, 2023Rule: Total Coliform 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: January 1, 2023 – March 31, 2023Rule: 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

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 SOMERTON CITY OF

Is SOMERTON CITY OF water safe to drink?

SOMERTON CITY OF water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 156 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has SOMERTON CITY OF detected?

66 contaminants were tested in SOMERTON CITY OF's water. Notable contaminants include Lead (90th percentile), strontium, chlorate. No contaminants exceed EPA legal limits. 3 exceed EPA health goals (MCLGs).

Does SOMERTON CITY OF have any EPA violations?

Yes, SOMERTON CITY OF has 156 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, MR, Other. 1 are health-based violations.

How many people does SOMERTON CITY OF serve?

SOMERTON CITY OF serves approximately 14,197 people, Arizona. The system provides water to 1 community: Somerton.

What type of water does SOMERTON CITY OF provide?

SOMERTON CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AZ0414015.

How does SOMERTON CITY OF compare to other utilities in Arizona?

SOMERTON CITY OF 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

Somerton