TapSafetyReport
C56/100

COTTONWOOD WSD — Water Quality Report 2026

Serving 10,867 people · Colorado

Water Source
Purchased Surface Water
County
—
System ID
CO0118020
Violations
44

Contaminant Test Results

EPA Violation History

7

Violations (last 5yr)

1

Unresolved

0

Health-Related

TIER 3Unresolved

Failed to issue ongoing public notification

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

When: July 1, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Violation related to Turbidity

When: March 24, 2025 – April 4, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

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: October 1, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

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: October 1, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2023 – July 3, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved

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, 2022 – September 30, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

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, 2022 – September 30, 2022Rule: 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 COTTONWOOD WSD

Is COTTONWOOD WSD water safe to drink?

COTTONWOOD WSD water receives a grade of C (56/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 44 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has COTTONWOOD WSD detected?

51 contaminants were tested in COTTONWOOD WSD's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does COTTONWOOD WSD have any EPA violations?

Yes, COTTONWOOD WSD has 44 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other.

How many people does COTTONWOOD WSD serve?

COTTONWOOD WSD serves approximately 10,867 people, Colorado.

What type of water does COTTONWOOD WSD provide?

COTTONWOOD 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 CO0118020.

How does COTTONWOOD WSD compare to other utilities in Colorado?

COTTONWOOD WSD scores 56/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Colorado state page for a full comparison of water systems.