F0/100
MILLIKEN TOWN OF — Water Quality Report 2026
Serving 9,200 people · Colorado
Water Source
Purchased Surface Water
County
—
System ID
CO0162511
Violations
116
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.95 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
3
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2025 – February 21, 2025Rule: Ground Water RuleEnforcement: 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: April 1, 2024 – June 30, 2024Rule: 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: April 1, 2024 – June 30, 2024Rule: Stage 2 DBPREnforcement: 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 MILLIKEN TOWN OF
Is MILLIKEN TOWN OF water safe to drink?
MILLIKEN TOWN OF water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 116 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MILLIKEN TOWN OF detected?
32 contaminants were tested in MILLIKEN TOWN OF's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does MILLIKEN TOWN OF have any EPA violations?
Yes, MILLIKEN TOWN OF has 116 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other.
How many people does MILLIKEN TOWN OF serve?
MILLIKEN TOWN OF serves approximately 9,200 people, Colorado.
What type of water does MILLIKEN TOWN OF provide?
MILLIKEN TOWN OF 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 CO0162511.
How does MILLIKEN TOWN OF compare to other utilities in Colorado?
MILLIKEN TOWN OF scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Colorado state page for a full comparison of water systems.