A96/100
RALSTON VALLEY WSD — Water Quality Report 2026
Serving 1,610 people · Colorado
Water Source
Purchased Surface Water
County
—
System ID
CO0130667
Violations
1
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
No violations in the past 5 years
Full EPA compliance since 2006.
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 RALSTON VALLEY WSD
Is RALSTON VALLEY WSD water safe to drink?
RALSTON VALLEY WSD water receives a grade of A (96/100), 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 RALSTON VALLEY WSD detected?
1 contaminants were tested in RALSTON VALLEY WSD's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does RALSTON VALLEY WSD have any EPA violations?
Yes, RALSTON VALLEY WSD has 1 EPA violation(s) on record, with the most recent in 2006. Violation types include Other.
How many people does RALSTON VALLEY WSD serve?
RALSTON VALLEY WSD serves approximately 1,610 people, Colorado.
What type of water does RALSTON VALLEY WSD provide?
RALSTON VALLEY 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 CO0130667.
How does RALSTON VALLEY WSD compare to other utilities in Colorado?
RALSTON VALLEY WSD scores 96/100 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.