Sunnyslope
EPA ID: WA5385550 · 2,112 people served · 3 ZIP codes
In every reporting cycle over the past five years, Sunnyslope has come through without a single EPA violation — a consistent performance across the full service population of approximately 2,112 residents that reflects both well-maintained infrastructure and reliable operational oversight.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Sunnyslope Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Sunnyslope serves a community with a median household income of $85,332 and an estimated 106,512 residents across its service area. Approximately 49% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Sunnyslope'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.
About 1% of homes in Kitsap County, Washington rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 63th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 6 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
Sunnyslope (EPA ID: WA5385550) is a community water system in Washington that serves approximately 2,112 people from groundwater sources.
This system provides water to 3 ZIP codes across 3 communities.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
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: 2 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 1 additional ZIP inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Sunnyslope (WA5385550) on EPA.gov.
Frequently Asked Questions
Is Sunnyslope water safe to drink?
Based on EPA records, Sunnyslope has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Sunnyslope serve?
Sunnyslope serves approximately 2,112 people across 3 ZIP codes in Washington.
Where does Sunnyslope get its water?
The primary water source is groundwater.