Whatcom County Water District #7
EPA ID: WA5395900 · 1,410 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Whatcom County Water District #7 (WA5395900): no drinking-water violations recorded since 2021. Across the reporting cycles included in federal data, Whatcom County Water District #7 has no EPA violation entries - the file covers a service population of approximately 1,410 residents and says nothing about individual household plumbing.
Data: EPA SDWIS
Service Area Map
Coverage area for Whatcom County Water District #7 Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Whatcom County Water District #7 have a median household income of $79,684 and about 45,739 residents live in those ZIP codes (Census; not the number of people this system supplies).
🌊 Where Does Your Water Come From?
Whatcom County Water District #7's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
PFAS in ZIP Codes This System Serves
PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 1 detection recorded.
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
Whatcom County Water District #7 (EPA ID: WA5395900) is a community water system in Washington that serves approximately 1,410 people from surface water sources.
This system serves ZIP code 98226 in Bellingham.
Violation History
Lead & Copper
No reported lead measurement appears for this PWSID in the accepted LCR snapshot. Absence of a reported measurement is not a measured zero.
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
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: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
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.
- 98226 - Bellingham
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Whatcom County Water District #7 (WA5395900) on EPA.gov.
Frequently Asked Questions
Is Whatcom County Water District #7 water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Whatcom County Water District #7 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 Whatcom County Water District #7 serve?
Whatcom County Water District #7 serves approximately 1,410 people across 1 ZIP code in Washington.
Where does Whatcom County Water District #7 get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Whatcom County Water District #7 Water Quality Report, WA. https://zipcheckup.com/water-system/wa5395900/
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title = {{Whatcom County Water District #7 Water Quality Report, WA}},
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url = {https://zipcheckup.com/water-system/wa5395900/}
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