Fall City Water District #127
EPA ID: WA5324550 · 2,987 people served · 6 ZIP codes
Water monitoring for Fall City Water District #127: clean, five years, 2,987 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Fall City Water District #127 Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Fall City Water District #127 serves a community with a median household income of $157,680 and an estimated 87,726 residents across its service area.
💧 Where Does Your Water Come From?
Fall City Water District #127'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 2% of homes in King 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 70th 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. 2 exceed 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
Fall City Water District #127 (EPA ID: WA5324550) is a community water system in Washington that serves approximately 2,987 people from groundwater sources.
This system provides water to 6 ZIP codes across 5 communities.
Average Home Safety Score: B (79/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 98024 | 0.001 mg/L | No | N/A |
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.
- 98014 — Carnation
- 98024 — Fall City
- 98027 — Issaquah
- 98029 — Issaquah
- 98050 — Preston
- 98065 — Snoqualmie
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Fall City Water District #127 (WA5324550) on EPA.gov.
Frequently Asked Questions
Is Fall City Water District #127 water safe to drink?
Based on EPA records, Fall City Water District #127 has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Fall City Water District #127 serve?
Fall City Water District #127 serves approximately 2,987 people across 6 ZIP codes in Washington.
Where does Fall City Water District #127 get its water?
The primary water source is groundwater.