Nooksack Valley Water Association
EPA ID: WA5359850 · 1,343 people served · 3 ZIP codes
ZipCheckup's reading of EPA SDWIS for Nooksack Valley Water Association (WA5359850): no EPA violations recorded in the last five years. Five years of EPA monitoring have produced no violations for Nooksack Valley Water Association - the supplier serving 1,343 residents has kept every contaminant level within federal limits, a result that places it among the top-performing utilities for systems with a service population of comparable size.
Data: EPA SDWIS
Service Area Map
Coverage area for Nooksack Valley Water Association Source: EPA SDWIS service area boundaries.
Service area boundary - Grade A
Service Area Demographics
The Nooksack Valley Water Association serves a community with a median household income of $85,781 and an estimated 13,606 residents across its service area. Approximately 48% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Nooksack Valley Water Association's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Washington
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Nooksack Valley Water Association (EPA ID: WA5359850) is a community water system in Washington that serves approximately 1,343 people from groundwater sources.
This system provides water to 3 ZIP codes across 3 communities.
ZIP-Area Home Safety Context: A (92/100)
This is the average Home Safety Score for 1 of 3 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by WA or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Nooksack Valley Water Association (WA5359850) on EPA.gov.
Frequently Asked Questions
Is Nooksack Valley Water Association water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Nooksack Valley Water Association in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Nooksack Valley Water Association serve?
Nooksack Valley Water Association serves approximately 1,343 people across 3 ZIP codes in Washington.
Where does Nooksack Valley Water Association get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Nooksack Valley Water Association Water Quality Report, WA. https://zipcheckup.com/water-system/wa5359850/
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author = {{ZipCheckup}},
title = {{Nooksack Valley Water Association Water Quality Report, WA}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wa5359850/}
}