B76/100
THREE OAKS — Water Quality Report 2026
Serving 1,622 people · Michigan
Water Source
Groundwater
County
—
System ID
MI0006600
Violations
9
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.008 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2021 – November 11, 2021Enforcement: 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 THREE OAKS
Is THREE OAKS water safe to drink?
THREE OAKS water receives a grade of B (76/100), which is considered good. Out of 27 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has THREE OAKS detected?
27 contaminants were tested in THREE OAKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does THREE OAKS have any EPA violations?
Yes, THREE OAKS has 9 EPA violation(s) on record, with the most recent in 2021. Violation types include Other, MCL, MR. 3 are health-based violations.
How many people does THREE OAKS serve?
THREE OAKS serves approximately 1,622 people, Michigan.
What type of water does THREE OAKS provide?
THREE OAKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MI0006600.
How does THREE OAKS compare to other utilities in Michigan?
THREE OAKS scores 76/100 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.