D25/100
Astoria Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 16,191 residents · Oregon
What's In Astoria's Tap Water?
32
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 2.61 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2016.
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
ASTORIA, CITY OF
Population Served
10,181
Water Source
Surface Water
System ID
OR4100055
KNAPPA WATER ASSOCIATION
Population Served
1,800
Water Source
Groundwater
System ID
OR4100061
YOUNGS RIVER LEWIS & CLARK WD
Population Served
2,580
Water Source
Surface Water
System ID
OR4100062
WICKIUP WATER DISTRICT
Population Served
1,630
Water Source
Surface Water
System ID
OR4100063
Frequently Asked Questions About Astoria Water
Is Astoria tap water safe to drink?
Astoria, Oregon tap water receives a grade of D (25/100), which is considered poor. 1 contaminant(s) exceed EPA maximum contaminant levels and 639 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Astoria's water?
Of the 35 contaminants tested in Astoria's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Astoria have any water quality violations?
Yes, Astoria has 639 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, MON. 33 of these are health-based violations, which are the most serious category.
Do I need a water filter in Astoria?
Based on EPA data, using a water filter in Astoria is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Astoria's tap water come from?
Astoria's drinking water is sourced from surface water and supplied by ASTORIA, CITY OF and 3 other water system(s). The system serves approximately 16,191 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Astoria'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. Astoria'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 Astoria's water compare to other cities in Oregon?
Astoria's water quality score of 25/100 earns a grade of D, which is considered poor. This is a concerning score that suggests significant water quality issues. Visit our Oregon state page to see how all cities in the state compare.
What should I do if I'm concerned about Astoria's water quality?
If you have concerns about Astoria'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 (ASTORIA, 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.