C42/100
Siletz Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 1,235 residents · Oregon
What's In Siletz's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
4
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2025 – August 25, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved
Missed required monitoring deadline
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2024 – October 31, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2024 – October 31, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2024 – October 31, 2024Rule: Surface Water Treatment 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
Water Utility Details
SILETZ, CITY OF
Population Served
1,235
Water Source
Surface Water
System ID
OR4100821
Frequently Asked Questions About Siletz Water
Is Siletz tap water safe to drink?
Siletz, Oregon tap water receives a grade of C (42/100), which is considered fair. 0 contaminant(s) exceed EPA maximum contaminant levels and 26 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Siletz's water?
1 contaminants were tested in Siletz's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Siletz have any water quality violations?
Yes, Siletz has 26 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, TT. 8 of these are health-based violations, which are the most serious category.
Do I need a water filter in Siletz?
Siletz water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. All contaminants are within health goals.
Where does Siletz's tap water come from?
Siletz's drinking water is sourced from surface water and supplied by SILETZ, CITY OF. The system serves approximately 1,235 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Siletz's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Siletz's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Siletz's water compare to other cities in Oregon?
Siletz's water quality score of 42/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Oregon state page to see how all cities in the state compare.
What should I do if I'm concerned about Siletz's water quality?
If you have concerns about Siletz's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (SILETZ, CITY OF) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.