B75/100
CASSOPOLIS — Water Quality Report 2026
Serving 1,815 people · Michigan
Water Source
Groundwater
County
—
System ID
MI0001250
Violations
13
Contaminant Test Results
No contaminant data available for this system.
EPA Violation History
2
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: October 1, 2023 – December 14, 2023Rule: Stage 1 DBPREnforcement: 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: October 11, 2021 – November 19, 2021Rule: Total Coliform 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 CASSOPOLIS
Is CASSOPOLIS water safe to drink?
CASSOPOLIS water receives a grade of B (75/100), which is considered good. Out of 0 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has CASSOPOLIS detected?
0 contaminants were tested in CASSOPOLIS's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does CASSOPOLIS have any EPA violations?
Yes, CASSOPOLIS has 13 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, RPT, MCL. 3 are health-based violations.
How many people does CASSOPOLIS serve?
CASSOPOLIS serves approximately 1,815 people, Michigan. The system provides water to 1 community: Cassopolis.
What type of water does CASSOPOLIS provide?
CASSOPOLIS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MI0001250.
How does CASSOPOLIS compare to other utilities in Michigan?
CASSOPOLIS scores 75/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Michigan state page for a full comparison of water systems.