B77/100
DURANGO CITY OF — Water Quality Report 2026
Serving 33,787 people · Colorado
Water Source
Surface Water
County
—
System ID
CO0134150
Violations
20
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
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: May 1, 2023 – May 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Missed required monitoring deadline
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: May 1, 2023 – May 31, 2023Rule: Surface Water Treatment 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 DURANGO CITY OF
Is DURANGO CITY OF water safe to drink?
DURANGO CITY OF water receives a grade of B (77/100), which is considered good. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has DURANGO CITY OF detected?
69 contaminants were tested in DURANGO CITY OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does DURANGO CITY OF have any EPA violations?
Yes, DURANGO CITY OF has 20 EPA violation(s) on record, with the most recent in 2023. Violation types include MR.
How many people does DURANGO CITY OF serve?
DURANGO CITY OF serves approximately 33,787 people, Colorado.
What type of water does DURANGO CITY OF provide?
DURANGO 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 CO0134150.
How does DURANGO CITY OF compare to other utilities in Colorado?
DURANGO CITY OF scores 77/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Colorado state page for a full comparison of water systems.