Is East Renton Highlands, WA Tap Water Safe to Drink?
East Renton Highlands, WA tap water currently meets EPA health guidelines across all monitored ZIP codes in this dataset. Contaminants including lithium have been detected at or below guideline thresholds.
Where Does East Renton Highlands Get Its Water?
Water in East Renton Highlands, WA is provided by 3 public water systems: COAL CREEK UTILITY DISTRICT, KING COUNTY WATER DISTRICT NO 90 and RENTON CITY OF.
How Is East Renton Highlands Tap Water Treated?
Treated water is disinfected using chloramines and free chlorine and ozone. Treatment includes conventional treatment (coagulation, flocculation, and filtration), granular activated carbon filtration, groundwater disinfection and in-line filtration.
What's in East Renton Highlands Tap Water?
The following contaminants were detected most frequently in East Renton Highlands public water systems. All detected levels fall at or below EPA health guidelines in this dataset.
| Contaminant | Peak detected | EPA guideline | ZIPs detected | Status |
|---|---|---|---|---|
| lithium | 9 µg/L | — | 0 ZIPs | Within guideline |
| PFTrDA | 0.007 µg/L | — | 0 ZIPs | Within guideline |
| 8:2 FTS | 0.005 µg/L | 0.005 µg/L | 1 ZIP | Within guideline |
| 11Cl-PF3OUdS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| 6:2 FTS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
Health Risk Profile for East Renton Highlands
Current EPA monitoring data for East Renton Highlands shows contaminant levels within guideline thresholds across all ZIP codes in this dataset. As with all public water systems, sensitive populations may choose to use a certified filter for additional peace of mind.
Best Broad-Spectrum Filters for This Water Profile
This city profile includes PFAS detections, chlorine disinfection, and other dissolved contaminants. Reverse osmosis (RO) systems certified under NSF/ANSI 58 provide broad reduction coverage; for PFAS specifically, confirm NSF/ANSI P473 or equivalent PFAS reduction certification.
8-stage tankless RO system certified to NSF/ANSI 58, reduces 1,000+ contaminants including PFAS, lead, arsenic, fluoride, and nitrates.
See recommendations matched to your exact address: choose your ZIP code below.
Frequently Asked Questions about East Renton Highlands Tap Water
Is East Renton Highlands tap water safe to drink?
East Renton Highlands tap water currently meets EPA health guidelines across all monitored ZIP codes in this dataset. Sensitive populations may still choose to use a certified filter as a precaution.
What contaminants are in East Renton Highlands tap water?
The most commonly detected contaminants in East Renton Highlands water systems include: lithium, PFTrDA, 8:2 FTS. See the ZIP-level reports for exact measurements and EPA guideline comparisons.
Where does East Renton Highlands get its drinking water?
East Renton Highlands receives water from 3 public water systems, including COAL CREEK UTILITY DISTRICT.
Do I need a water filter in East Renton Highlands?
Current data does not show guideline exceedances in East Renton Highlands. A certified filter can still reduce trace contaminants and improve taste for households that prefer filtered water.
How often is East Renton Highlands tap water tested?
Public water systems in East Renton Highlands are required by the EPA to test for regulated contaminants on schedules ranging from daily (for microbials and disinfectants) to annual or triennial (for many chemical contaminants). Results are published in annual Consumer Confidence Reports (CCRs). The data on this page reflects the most recent available EPA monitoring results, with the latest sample date of 2025-06-11.
Tap water reports by ZIP in East Renton Highlands
- 98059 - East Renton Highlands tap water report Some concern
Water utilities serving East Renton Highlands, WA
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- KING COUNTY WATER DISTRICT NO 90Some concern
Also covers / overlaps with
- Newcastle, WA
- Renton, WA
- Seattle East CCD, WA · Township