Lake Josephine Riviera
EPA ID: WA5343980 · 1,380 people served · 3 ZIP codes
ZipCheckup's reading of EPA SDWIS for Lake Josephine Riviera (WA5343980): no EPA violations recorded in the last five years. Five clean years on EPA record - Lake Josephine Riviera, 1,380 residents served.
Data: EPA SDWIS
Service Area Map
Coverage area for Lake Josephine Riviera Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Lake Josephine Riviera serves a community with a median household income of $84,282 and an estimated 8,194 residents across its service area. Approximately 46% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Lake Josephine Riviera'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 80th 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
Lake Josephine Riviera (EPA ID: WA5343980) is a community water system in Washington that serves approximately 1,380 people from groundwater sources.
This system provides water to 3 ZIP codes across 3 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0026 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 Lake Josephine Riviera (WA5343980) on EPA.gov.
Frequently Asked Questions
Is Lake Josephine Riviera water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Lake Josephine Riviera 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 Lake Josephine Riviera serve?
Lake Josephine Riviera serves approximately 1,380 people across 3 ZIP codes in Washington.
Where does Lake Josephine Riviera get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Lake Josephine Riviera Water Quality Report, WA. https://zipcheckup.com/water-system/wa5343980/
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author = {{ZipCheckup}},
title = {{Lake Josephine Riviera Water Quality Report, WA}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wa5343980/}
}