Skyway Water & Sewer
EPA ID: WA5338800 · 12,036 people served · 63 ZIP codes
ZipCheckup's reading of EPA SDWIS for Skyway Water & Sewer (WA5338800): no EPA violations recorded in the last five years. Zero EPA violations over five years - Skyway Water & Sewer has kept tap water compliance clean for its full service population of 12,036.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Skyway Water & Sewer Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Skyway Water & Sewer serves a community with a median household income of $114,030 and an estimated 1,006,544 residents across its service area. Approximately 62% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Skyway Water & Sewer'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 69th 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. 3 detections 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
Skyway Water & Sewer (EPA ID: WA5338800) is a community water system in Washington that serves approximately 12,036 people from surface water sources.
This system provides water to 63 ZIP codes across 2 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 61 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
This system serves 63 ZIP codes:
98057 · 98101 · 98102 · 98103 · 98104 98105 · 98106 · 98107 · 98108 · 98109 98111 · 98112 · 98113 · 98114 · 98115 98116 · 98117 · 98118 · 98119 · 98121 98122 · 98124 · 98125 · 98126 · 98127 98129 · 98131 · 98132 · 98133 · 98134 98136 · 98138 · 98139 · 98141 · 98144 98145 · 98146 · 98148 · 98154 · 98155 98158 · 98160 · 98161 · 98164 · 98165 98166 · 98168 · 98170 · 98171 · 98174 98175 · 98177 · 98178 · 98181 · 98185 98188 · 98189 · 98190 · 98191 · 98194 98195 · 98198 · 98199
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Skyway Water & Sewer (WA5338800) on EPA.gov.
Frequently Asked Questions
Is Skyway Water & Sewer water safe to drink?
Based on EPA records, Skyway Water & Sewer has no recorded violations in the past 5 years - a positive indicator of water quality management.
How many people does Skyway Water & Sewer serve?
Skyway Water & Sewer serves approximately 12,036 people across 63 ZIP codes in Washington.
Where does Skyway Water & Sewer get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
Frequently Asked Questions
How to cite this page
ZipCheckup. (2026). Skyway Water and Sewer, WA: Serves 12K People (2026). https://zipcheckup.com/water-system/wa5338800/
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title = {{Skyway Water and Sewer, WA: Serves 12K People (2026)}},
year = {2026},
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Data as of April 2026.