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F10/100

MT WERNER WD — Water Quality Report 2026

Serving 16,980 people · Colorado

Water Source
Surface Water
County
—
System ID
CO0154524
Violations
67

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
0.004 mg/L0.015 mg/LAbove Goal

EPA Violation History

8

Violations (last 5yr)

6

Unresolved

3

Health-Related

TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Treatment Technique Violation

When: April 1, 2025 – June 30, 2025Rule: Stage 1 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2025 – June 30, 2025Rule: Stage 1 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2025 – June 30, 2025Rule: Stage 1 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Monitoring / Reporting Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2025 – June 30, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2021 – December 31, 2021Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2021 – September 30, 2021Rule: Stage 2 DBPREnforcement: 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 MT WERNER WD

Is MT WERNER WD water safe to drink?

MT WERNER WD water receives a grade of F (10/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 67 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has MT WERNER WD detected?

69 contaminants were tested in MT WERNER WD's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does MT WERNER WD have any EPA violations?

Yes, MT WERNER WD has 67 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, TT, MCL. 5 are health-based violations.

How many people does MT WERNER WD serve?

MT WERNER WD serves approximately 16,980 people, Colorado.

What type of water does MT WERNER WD provide?

MT WERNER WD 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 CO0154524.

How does MT WERNER WD compare to other utilities in Colorado?

MT WERNER WD scores 10/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Colorado state page for a full comparison of water systems.