F10/100
LAFAYETTE CITY OF — Water Quality Report 2026
Serving 28,700 people · Colorado
Water Source
Surface Water
County
—
System ID
CO0107473
Violations
67
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
4
Violations (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 1, 2025 – August 12, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2025 – July 31, 2025Rule: Surface Water Treatment 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: July 1, 2025 – August 12, 2025Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2021 – July 14, 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 LAFAYETTE CITY OF
Is LAFAYETTE CITY OF water safe to drink?
LAFAYETTE CITY OF water receives a grade of F (10/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 67 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has LAFAYETTE CITY OF detected?
76 contaminants were tested in LAFAYETTE CITY OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does LAFAYETTE CITY OF have any EPA violations?
Yes, LAFAYETTE CITY OF has 67 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, MR, Other. 5 are health-based violations.
How many people does LAFAYETTE CITY OF serve?
LAFAYETTE CITY OF serves approximately 28,700 people, Colorado.
What type of water does LAFAYETTE CITY OF provide?
LAFAYETTE CITY OF sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is CO0107473.
How does LAFAYETTE CITY OF compare to other utilities in Colorado?
LAFAYETTE CITY OF scores 10/100 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.