A100/100
WILLOWBROOK WSD — Water Quality Report 2026
Serving 9,348 people · Colorado
Water Source
Purchased Surface Water
County
—
System ID
CO0130843
Violations
0
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.009 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
This system has a clean compliance history.
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 WILLOWBROOK WSD
Is WILLOWBROOK WSD water safe to drink?
WILLOWBROOK WSD water receives a grade of A (100/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has WILLOWBROOK WSD detected?
1 contaminants were tested in WILLOWBROOK WSD's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does WILLOWBROOK WSD have any EPA violations?
No, WILLOWBROOK WSD has zero EPA violations on record. This indicates consistent compliance with federal drinking water standards.
How many people does WILLOWBROOK WSD serve?
WILLOWBROOK WSD serves approximately 9,348 people, Colorado.
What type of water does WILLOWBROOK WSD provide?
WILLOWBROOK WSD 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 CO0130843.
How does WILLOWBROOK WSD compare to other utilities in Colorado?
WILLOWBROOK WSD scores 100/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Colorado state page for a full comparison of water systems.