Boistfort Valley
EPA ID: WA5307610 · 2,389 people served · 7 ZIP codes
ZipCheckup's reading of EPA SDWIS for Boistfort Valley (WA5307610): no EPA violations recorded in the last five years. From the earliest to the most recent cycle in the five-year EPA window, Boistfort Valley has logged zero violations - no MCL exceedances, no health advisories, and no enforcement activity across the entire period for the 2,389 people in its service area, a record that stands up well against both state and national benchmarks.
Data: EPA SDWIS
Service Area Map
Coverage area for Boistfort Valley Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Boistfort Valley serves a community with a median household income of $80,804 and an estimated 79,165 residents across its service area. Approximately 56% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 36% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
🌊 Where Does Your Water Come From?
Boistfort Valley'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 61th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 2 detections recorded. 1 exceeds federal EPA limits (4 ppt for PFOA/PFOS).
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
Boistfort Valley (EPA ID: WA5307610) is a community water system in Washington that serves approximately 2,389 people from surface water sources.
This system provides water to 7 ZIP codes across 7 communities.
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.
- 98531 - Centralia
- 98532 - Chehalis
- 98538 - Curtis
- 98568 - Oakville
- 98572 - Pe Ell
- 98579 - Rochester
- 98596 - Winlock
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Boistfort Valley (WA5307610) on EPA.gov.
Frequently Asked Questions
Is Boistfort Valley water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Boistfort Valley 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 Boistfort Valley serve?
Boistfort Valley serves approximately 2,389 people across 7 ZIP codes in Washington.
Where does Boistfort Valley get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Boistfort Valley Water Quality Report, WA. https://zipcheckup.com/water-system/wa5307610/
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title = {{Boistfort Valley Water Quality Report, WA}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wa5307610/}
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