D26/100

TILLAMOOK WATER DEPT, CITY OF — Water Quality Report 2026

Serving 5,265 people · Oregon

Water Source

Surface Water

County

—

System ID

OR4100893

Violations

Contaminant Test Results

EPA Violation History

Violations (last 5yr)

Unresolved

Health-Related

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2025 – September 4, 2025Enforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to conduct Level 1 Assessment

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

When: October 29, 2023 – July 31, 2024Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2023 – August 24, 2023Enforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

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

When: January 1, 2023 – May 3, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

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

When: January 1, 2023 – April 10, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

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

When: July 1, 2022 – October 4, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

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

When: July 1, 2022 – November 2, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

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

When: July 1, 2022 – September 1, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

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

When: July 1, 2022 – February 8, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

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

When: January 1, 2022 – May 9, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

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

When: January 1, 2022 – June 9, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Consumer confidence report — inadequate or unavailable

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

When: January 1, 2022 – June 9, 2022Rule: 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 TILLAMOOK WATER DEPT, CITY OF

Is TILLAMOOK WATER DEPT, CITY OF water safe to drink?

TILLAMOOK WATER DEPT, CITY OF water receives a grade of D (26/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 70 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has TILLAMOOK WATER DEPT, CITY OF detected?

31 contaminants were tested in TILLAMOOK WATER DEPT, CITY OF's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does TILLAMOOK WATER DEPT, CITY OF have any EPA violations?

Yes, TILLAMOOK WATER DEPT, CITY OF has 70 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, TT. 1 are health-based violations.

How many people does TILLAMOOK WATER DEPT, CITY OF serve?

TILLAMOOK WATER DEPT, CITY OF serves approximately 5,265 people, Oregon.

What type of water does TILLAMOOK WATER DEPT, CITY OF provide?

TILLAMOOK WATER DEPT, CITY OF 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 OR4100893.

How does TILLAMOOK WATER DEPT, CITY OF compare to other utilities in Oregon?

TILLAMOOK WATER DEPT, CITY OF scores 26/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Oregon state page for a full comparison of water systems.