A91/100
LITTLE THOMPSON WD — Water Quality Report 2026
Serving 25,654 people · Colorado
Water Source
Purchased Surface Water
County
—
System ID
CO0135477
Violations
2
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
Full EPA compliance since 2005.
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 LITTLE THOMPSON WD
Is LITTLE THOMPSON WD water safe to drink?
LITTLE THOMPSON WD water receives a grade of A (91/100), which is considered excellent. 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 LITTLE THOMPSON WD detected?
69 contaminants were tested in LITTLE THOMPSON WD's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does LITTLE THOMPSON WD have any EPA violations?
Yes, LITTLE THOMPSON WD has 2 EPA violation(s) on record, with the most recent in 2005. Violation types include MCL, MR. 1 are health-based violations.
How many people does LITTLE THOMPSON WD serve?
LITTLE THOMPSON WD serves approximately 25,654 people, Colorado.
What type of water does LITTLE THOMPSON WD provide?
LITTLE THOMPSON WD 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 CO0135477.
How does LITTLE THOMPSON WD compare to other utilities in Colorado?
LITTLE THOMPSON WD scores 91/100 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.