ZipCheckup grade for 98053: B.
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Your top priority: use a filter certified to reduce PFAS; check which ones. Check your ZIP → EPA PFAS info
Redmond, WA (98053): PFAS Above 2029 MCL Level - 83/100
EPA data combined for 7 water systems mapped to this ZIP (largest mapped system: City of Redmond Water System)
EPA records for the water systems mapped to 98053 in Redmond, WA contain 2 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
At a Glance
- Water EPA records for water systems mapped to this ZIP show 2 violations (non-health) (since 2021).
- Lead The reported 90th-percentile lead result of 0.002 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
- PFAS At least one PFAS result is above an EPA MCL value (UCMR5 sampling; MCL compliance required from 2029).
- Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.
- Flood 6 cumulative NFIP claim records. Claim evidence is historical, not current map coverage.
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Safety records for Redmond (98053) contain exactly one critical finding.
Score Breakdown
Overall Home Safety Score: 83/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (8) HIGH
Your Water System
ZIP code 98053 in Redmond, Washington is mapped to the water system City of Redmond Water System (EPA ID: WA5371650). This system provides water to approximately 163,335 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 |
|---|---|---|---|
| City of Redmond Water System | WA5371650 | 163,335 | Surface water |
| Union Hill Water Association Inc. | WA5390260 | 8,720 | Groundwater |
| Sammamish Plateau Water & Sewer | WA5340900 | 79,362 | Surface water |
| Woodinville Water District | WA5341600 | 66,699 | Surface water |
| Ames Lake Water Assoc Inc. | WA5302055 | 3,224 | Groundwater |
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
- 98074 (Sammamish) - 1 mi - 1 violation recorded for mapped water systems
- 98075 (Sammamish) - 4 mi
- 98073 (Redmond) - 4 mi
- 98052 (Redmond) - 4 mi
- 98008 (Bellevue) - 4 mi
- 98007 (Bellevue) - 5 mi
- 98014 (Carnation) - 6 mi - 3 violations recorded for mapped water systems
- 98029 (Issaquah) - 6 mi - 1 violation recorded for mapped water systems
- 98005 (Bellevue) - 6 mi
- 98019 (Duvall) - 7 mi - 45 violations recorded for mapped water systems
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for City of Redmond Water System (WA5371650) 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.
PFAS Contamination Detected
PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 98053. One or more compound results are above the level of a federal PFAS MCL with compliance required from 2029.
Detected compounds: PFHxS, PFOS, PFBS, PFHxA, PFPeS, PFPeA.
Highest measured level: 0.0165 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.
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.
Protect Your Home in Redmond
Based on local data for ZIP 98053, 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 Redmond has 6 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 98053 safe to drink?
EPA SDWIS records 2 violations since 2021 across the water systems mapped to ZIP 98053 (primary system: City of Redmond Water System), 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 98053's water come from?
The recorded water source for City of Redmond Water System, a system mapped to ZIP code 98053, is Surface water. This system serves approximately 163,335 people.
How does Redmond water compare to the national average?
Redmond's Home Safety Score ranks better than 67% of U.S. ZIP codes, and lower than 67% of ZIP codes within Washington.
How can I get my water tested in Redmond?
If City of Redmond Water System 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 98053 tap water?
The Lead and Copper Rule record selected for 98053 reports a 90th-percentile lead result of 0.002 mg/L for a water system mapped to this ZIP (record date 2024-12-31). 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 98053?
98053 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 98053's water?
Yes, PFAS have been detected in samples from water systems mapped to 98053. One or more PFAS results are above the level of a federal PFAS MCL with compliance required from 2029. 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 98053?
FEMA records contain 6 flood insurance claims filed in ZIP code 98053; 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
ZipCheckup. (2026). Redmond, WA (98053): PFAS Above 2029 MCL Level - 83/100. https://zipcheckup.com/report/98053/
@misc{zipcheckup-report-98053,
author = {{ZipCheckup}},
title = {{Redmond, WA (98053): PFAS Above 2029 MCL Level - 83/100}},
year = {2026},
url = {https://zipcheckup.com/report/98053/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 98053
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 98074 | Sammamish, WA | 1.5 mi | B | 1 |
| 98075 | Sammamish, WA | 4.2 mi | B | 0 |
| 98073 | Redmond, WA | 4.3 mi | N/A | 0 |
| 98052 | Redmond, WA | 4.3 mi | B | 0 |
| 98008 | Bellevue, WA | 4.3 mi | A | 0 |
| 98007 | Bellevue, WA | 5.2 mi | A | 0 |
| 98014 | Carnation, WA | 6.0 mi | A | 3 |
| 98029 | Issaquah, WA | 6.3 mi | B | 1 |
| 98005 | Bellevue, WA | 6.3 mi | A | 0 |
| 98019 | Duvall, WA | 7.2 mi | A | 45 |
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