B75/100
WALDEN WSD — Water Quality Report 2026
Serving 1,500 people · Colorado
Water Source
Groundwater
County
—
System ID
CO0121850
Violations
17
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.43 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2024 – December 31, 2024Enforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2021 – October 10, 2021Rule: Ground Water 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 WALDEN WSD
Is WALDEN WSD water safe to drink?
WALDEN WSD water receives a grade of B (75/100), which is considered good. Out of 28 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has WALDEN WSD detected?
28 contaminants were tested in WALDEN WSD's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does WALDEN WSD have any EPA violations?
Yes, WALDEN WSD has 17 EPA violation(s) on record, with the most recent in 2024. Violation types include MR.
How many people does WALDEN WSD serve?
WALDEN WSD serves approximately 1,500 people, Colorado.
What type of water does WALDEN WSD provide?
WALDEN WSD sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CO0121850.
How does WALDEN WSD compare to other utilities in Colorado?
WALDEN WSD scores 75/100 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.