B69/100
NILES — Water Quality Report 2026
Serving 14,215 people · Michigan
Water Source
Groundwater
County
—
System ID
MI0004740
Violations
28
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (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 11, 2022 – August 1, 2022Rule: 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 NILES
Is NILES water safe to drink?
NILES water receives a grade of B (69/100), which is considered good. Out of 66 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has NILES detected?
66 contaminants were tested in NILES's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does NILES have any EPA violations?
Yes, NILES has 28 EPA violation(s) on record, with the most recent in 2022. Violation types include RPT, MR, Other.
How many people does NILES serve?
NILES serves approximately 14,215 people, Michigan. The system provides water to 1 community: Niles.
What type of water does NILES provide?
NILES sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MI0004740.
How does NILES compare to other utilities in Michigan?
NILES scores 69/100 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.