A92/100

PLYMOUTH — Water Quality Report 2026

Serving 9,132 people · Michigan

Water Source
Purchased Surface Water
County
System ID
MI0005400
Violations
8

Contaminant Test Results

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 – December 31, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issued
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 – December 31, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2023 – July 3, 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: January 1, 2023 – October 20, 2023Rule: 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, 2023 – October 20, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed to issue ongoing public notification

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

When: October 1, 2021 – September 28, 2022Rule: Ground Water 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 PLYMOUTH

Is PLYMOUTH water safe to drink?

PLYMOUTH water receives a grade of A (92/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.

What contaminants has PLYMOUTH detected?

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

Does PLYMOUTH have any EPA violations?

Yes, PLYMOUTH has 8 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, Other.

How many people does PLYMOUTH serve?

PLYMOUTH serves approximately 9,132 people, Michigan. The system provides water to 1 community: Plymouth.

What type of water does PLYMOUTH provide?

PLYMOUTH sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is MI0005400.

How does PLYMOUTH compare to other utilities in Michigan?

PLYMOUTH scores 92/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Michigan state page for a full comparison of water systems.

Cities Served