Water Quality Report

Seattle, WA (98174) Home Safety Report

EPA data for Seattle Public Utilities

0 recorded EPA violations (2021-2026)

EPA records for the water systems mapped to 98174 in Seattle, WA contain zero recorded violations for inclusive record years 2021 through 2026. This does not establish that every category was monitored or published, and it does not cover events outside that source window.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources

Latest air quality, EPA records and weather alerts Current data temporarily unavailable

Current EPA violation data unavailable

Safety Score N/A

Water Quality No violations

Lead Risk Below action level 0.0016 mg/L, 90th percentile, sample period ending 2025-12-31

NFIP Claim History N/A

Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

Water No drinking-water violations in EPA records since 2021.
Lead The reported 90th-percentile lead result of 0.0016 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.

Contaminant Summary

Evidence unavailable

Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record Consumer Confidence Report: source date or period is not present in ZipCheckup's accepted source record

Water System

1,161,961

People Served

Health Violations (since 2021)

Surface water

Water Source

0.0016 mg/L

Reported Lead Result

Zone 3

County Radon Potential · Low

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Score Breakdown

Overall Home Safety Score: Score unavailable

Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.

Canonical components

EPA water compliance

100/100

Observed

PFAS MCL screen

Unknown

Evidence missing

EPA radon zone

100/100

Observed

Annual EPA AirData AQI

100/100

Observed

Required domains

Drinking water

Unknown

Indoor environment

100/100

Outdoor environment

100/100

Coverage: 3 of 4 components and 2 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (6) MODERATE

Your Water System

ZIP code 98174 in Seattle, Washington is mapped to the water system Seattle Public Utilities (EPA ID: WA5377050). This system provides water to approximately 1,161,961 people from surface water sources.

Other Water Quality Reports in Washington

98001 (Auburn) - 6 violations recorded for mapped water systems
98002 (Auburn) - 2 violations recorded for mapped water systems
98003 (Federal Way) - 1 violation recorded for mapped water systems
98004 (Bellevue) - 3 violations recorded for mapped water systems
98005 (Bellevue)
98006 (Bellevue) - 5 violations recorded for mapped water systems
98007 (Bellevue)
98008 (Bellevue)
98009 (Bellevue)
98010 (Black Diamond)
98011 (Bothell) - 1 violation recorded for mapped water systems
98012 (Bothell) - 2 violations recorded for mapped water systems
98013 (Burton)
98014 (Carnation) - 3 violations recorded for mapped water systems
98015 (Bellevue)
98019 (Duvall) - 45 violations recorded for mapped water systems
98020 (Edmonds) - 3 violations recorded for mapped water systems
98021 (Bothell) - 5 violations recorded for mapped water systems
98022 (Enumclaw) - 2 violations recorded for mapped water systems
98023 (Federal Way) - 1 violation recorded for mapped water systems

Nearby Water Quality Reports

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Seattle Public Utilities (WA5377050) on EPA.gov.

4 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →

Environmental Hazards (9) CRITICAL

Home & Infrastructure (3) OK

Cost & Community (6) OK

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Frequently Asked Questions

Is the tap water in 98174 safe to drink?

EPA SDWIS records 0 violations since 2021 across the water systems mapped to ZIP 98174 (primary system: Seattle Public Utilities), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 98174's water come from?

The recorded water source for Seattle Public Utilities, a system mapped to ZIP code 98174, is Surface water. This system serves approximately 1,161,961 people.

How can I get my water tested in Seattle?

If Seattle Public Utilities supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

Is lead a concern in 98174 tap water?

The Lead and Copper Rule record selected for 98174 reports a 90th-percentile lead result of 0.0016 mg/L for a water system mapped to this ZIP (record date 2025-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.

What is the radon risk for 98174?

98174 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in King County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

How to cite this page

APA ZipCheckup. (2026). Seattle, WA (98174) Home Safety Report. https://zipcheckup.com/report/98174/

BibTeX

@misc{zipcheckup-report-98174,
  author = {{ZipCheckup}},
  title  = {{Seattle, WA (98174) Home Safety Report}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/98174/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 98174

ZIP Code	City, State	Distance	Grade
98111	Seattle, WA	<1 mi	N/A
98114	Seattle, WA	<1 mi	N/A
98124	Seattle, WA	<1 mi	N/A
98129	Seattle, WA	<1 mi	N/A
98131	Seattle, WA	<1 mi	N/A
98138	Seattle, WA	<1 mi	N/A
98145	Seattle, WA	<1 mi	N/A
98154	Seattle, WA	<1 mi	N/A
98160	Seattle, WA	<1 mi	N/A
98161	Seattle, WA	<1 mi	N/A