A80/100
CONSTANTINE — Water Quality Report 2026
Serving 2,075 people · Michigan
Water Source
Groundwater
County
—
System ID
MI0001600
Violations
12
Contaminant Test Results
EPA Violation History
3
Violations (last 5yr)
2
Unresolved
0
Health-Related
TIER 3Unresolved
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, 2025 – December 31, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved
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, 2025 – December 31, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – December 11, 2023Enforcement: 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 CONSTANTINE
Is CONSTANTINE water safe to drink?
CONSTANTINE water receives a grade of A (80/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has CONSTANTINE detected?
1 contaminants were tested in CONSTANTINE's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does CONSTANTINE have any EPA violations?
Yes, CONSTANTINE has 12 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, MCL. 2 are health-based violations.
How many people does CONSTANTINE serve?
CONSTANTINE serves approximately 2,075 people, Michigan. The system provides water to 1 community: Constantine.
What type of water does CONSTANTINE provide?
CONSTANTINE sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MI0001600.
How does CONSTANTINE compare to other utilities in Michigan?
CONSTANTINE scores 80/100 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.