B60/100
Nooksack Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 2,427 residents · Washington
What's In Nooksack's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2015.
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
NOOKSACK WATER DEPT
Population Served
2,427
Water Source
Purchased Groundwater
System ID
WA5359800
Frequently Asked Questions About Nooksack Water
Is Nooksack tap water safe to drink?
Nooksack, Washington tap water receives a grade of B (60/100), which is considered good. Out of 1 contaminants tested, none exceed EPA maximum contaminant levels (MCLs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Nooksack's water?
1 contaminants were tested in Nooksack's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Nooksack have any water quality violations?
Yes, Nooksack has 20 EPA violation(s) on record, with the most recent in 2015. Violation types include Other, MCL, MR. 5 of these are health-based violations, which are the most serious category.
Do I need a water filter in Nooksack?
Nooksack 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 Nooksack's tap water come from?
Nooksack's drinking water is sourced from purchased groundwater and supplied by NOOKSACK WATER DEPT. The system serves approximately 2,427 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Nooksack'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. Nooksack'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 Nooksack's water compare to other cities in Washington?
Nooksack's water quality score of 60/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Washington state page to see how all cities in the state compare.
What should I do if I'm concerned about Nooksack's water quality?
If you have concerns about Nooksack'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 (NOOKSACK WATER DEPT) 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.