ZipCheckup grade for 98059: A.

Checked records flag no major concern; missing data is unknown.

Water Quality Report
A 99

Renton, WA (98059): PFAS Detected in Mapped Water Systems - 99/100

EPA data combined for 7 water systems mapped to this ZIP (largest mapped system: King County Water District No 90)

PFAS Detected

EPA records for the water systems mapped to 98059 in Renton, WA contain 3 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.

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
Water records and current conditions
Current EPA violation data unavailable
Safety Score
A 99/100
Water Quality Concerns 3 non-health-based violation records in EPA data
Lead Risk Below action level 0.0012 mg/L, 90th percentile, sample period ending 2025-12-31
NFIP Claim History Claim records 4 claims
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 3 violations (non-health) (since 2021).
  • Lead The reported 90th-percentile lead result of 0.0012 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
  • PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
  • Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.
  • Flood 4 cumulative NFIP claim records. Claim evidence is historical, not current map coverage.
Contaminant Summary
Violations on record (not health-based)
3 violations PFAS detected
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
A
ZIP-level Home Safety model score: 99 / 100
Home Safety Score higher than 91% of ZIP codes nationwide
7
Water Systems
20,100
People Served
0
Health Violations (since 2021)
Surface water
Water Source
0.0012 mg/L
Reported Lead Result
Zone 3
County Radon Potential · Low
$810K
Median Home Value92% above state median ($421K)

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Score Breakdown

Overall Home Safety Score: 99/100

This is the published model score. Component and domain values are shown independently; they are not added together on this page.

Canonical components

EPA water compliance
94/100
Observed
PFAS MCL screen
100/100
Observed
EPA radon zone
100/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
97/100
Indoor environment
100/100
Outdoor environment
100/100

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

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

Safety & Health (7) HIGH

Your Water System

ZIP code 98059 in Renton, Washington is mapped to the water system King County Water District No 90 (EPA ID: WA5341150). This system provides water to approximately 20,100 people from surface water sources.

There are 7 community water systems serving this area.

Water Systems Serving This Area

System Name EPA ID Population Source
King County Water District No 90 WA5341150 20,100 Surface water
City of Renton WA5371850 108,091 Groundwater
Coal Creek Utility District WA5341750 15,989 Surface water
Issaquah Water System WA5336350 43,584 Surface water
Valley View Mobile Park LLC WA5390998 126 Groundwater

Other Water Quality Reports in Washington

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 King County Water District No 90 (WA5341150) 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 →

PFAS Contamination Detected

PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 98059.

Detected compounds: PFBS.

Highest measured level: 0.003 µg/L

Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.

📊 EPA UCMR5 · View source →
Environmental Hazards (11) CRITICAL
Home & Infrastructure (7) OK
Cost & Community (9) MODERATE

CPSC product recall notices

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

View all recalls →

📊 CPSC · View source →

Protect Your Home in Renton

Based on local data for ZIP 98059, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Home & Flood Insurance

The ZIP code for this report in Renton has 4 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.

Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote

Check Your Flood Zone (Free)

FEMA flood map lookup - see if your property is in a flood zone

Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 98059 safe to drink?

EPA SDWIS records 3 violations since 2021 across the water systems mapped to ZIP 98059 (primary system: King County Water District No 90), 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 98059's water come from?

The recorded water source for King County Water District No 90, a system mapped to ZIP code 98059, is Surface water. This system serves approximately 20,100 people.

How does Renton water compare to the national average?

Renton's Home Safety Score ranks better than 91% of U.S. ZIP codes, and at or above 57% within Washington.

How can I get my water tested in Renton?

If King County Water District No 90 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 98059 tap water?

The Lead and Copper Rule record selected for 98059 reports a 90th-percentile lead result of 0.0012 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 98059?

98059 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.

Are there PFAS (forever chemicals) in 98059's water?

Yes, PFAS have been detected in samples from water systems mapped to 98059. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.

What does the NFIP claim history show for ZIP 98059?

FEMA records contain 4 flood insurance claims filed in ZIP code 98059; the recorded rated-zone value (the most frequent one if there are several claims) is X, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Renton, WA (98059): PFAS Detected in Mapped Water Systems - 99/100. https://zipcheckup.com/report/98059/
BibTeX 
@misc{zipcheckup-report-98059,
  author = {{ZipCheckup}},
  title  = {{Renton, WA (98059): PFAS Detected in Mapped Water Systems - 99/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/98059/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 98059

ZIP Code City, State Distance Grade Violations
98056 Renton, WA 3.1 mi A 0
98058 Renton, WA 4.1 mi A 3
98006 Bellevue, WA 4.3 mi A 5
98027 Issaquah, WA 4.9 mi A 6
98055 Renton, WA 5.1 mi A 0
98057 Renton, WA 5.4 mi A 1
98178 Seattle, WA 5.7 mi A 0
98029 Issaquah, WA 6.3 mi B 1
98040 Mercer Island, WA 6.5 mi A 0
98075 Sammamish, WA 6.7 mi B 0

Contaminants Detected in 98059

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2026 Rankings

ZIP 98059 scores in the top tier nationally.

Coverage: 15/17 risk factors Data sources →
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