South Auburn Water Association
EPA ID: WA5381400 · 212 people served · 1 ZIP code
ZipCheckup's reading of EPA records for South Auburn Water Association (WA5381400): no drinking-water violations recorded since 2021. EPA lists no violations for South Auburn Water Association, serving 212 people.
Data: EPA SDWIS
Service Area Map
Coverage area for South Auburn Water Association Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with South Auburn Water Association have a median household income of $77,714 and about 37,284 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 64% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
South Auburn Water Association's water is classified in EPA records as a groundwater source. 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
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
South Auburn Water Association (EPA ID: WA5381400) is a community water system in Washington that serves approximately 212 people from groundwater sources.
This system serves ZIP code 98002 in Auburn.
Violation History
Lead & Copper
Latest reported 90th-percentile lead result for this PWSID: 0.001 mg/L (2015-12-31).
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.
- 98002 - Auburn
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for South Auburn Water Association (WA5381400) on EPA.gov.
Frequently Asked Questions
Is South Auburn Water Association water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for South Auburn 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 South Auburn Water Association serve?
South Auburn Water Association serves approximately 212 people across 1 ZIP code in Washington.
Where does South Auburn Water Association get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). South Auburn Water Association Water Quality Report, WA. https://zipcheckup.com/water-system/wa5381400/
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title = {{South Auburn Water Association Water Quality Report, WA}},
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