Is Chehalis, WA Tap Water Safe to Drink?
Chehalis, 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 Chehalis Get Its Water?
Water in Chehalis, WA is provided by 1 public water system: CHEHALIS WATER DEPARTMENT.
How Is Chehalis Tap Water Treated?
Treated water is disinfected using free chlorine. Treatment includes conventional treatment (coagulation, flocculation, and filtration).
What's in Chehalis Tap Water?
The following contaminants were detected most frequently in Chehalis 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 |
| 6:2 FTS | 0.005 µg/L | 0.005 µg/L | 1 ZIP | Within guideline |
| 11Cl-PF3OUdS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| HFPO-DA | 0.005 µg/L | — | 0 ZIPs | Within guideline |
Health Risk Profile for Chehalis
Current EPA monitoring data for Chehalis 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.
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See recommendations matched to your exact address: choose your ZIP code below.
Frequently Asked Questions about Chehalis Tap Water
Is Chehalis tap water safe to drink?
Chehalis 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 Chehalis tap water?
The most commonly detected contaminants in Chehalis water systems include: lithium, PFTrDA, 6:2 FTS. See the ZIP-level reports for exact measurements and EPA guideline comparisons.
Where does Chehalis get its drinking water?
Chehalis receives water from one public water system, including CHEHALIS WATER DEPARTMENT.
Do I need a water filter in Chehalis?
Current data does not show guideline exceedances in Chehalis. A certified filter can still reduce trace contaminants and improve taste for households that prefer filtered water.
How often is Chehalis tap water tested?
Public water systems in Chehalis 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 2024-11-07.
Tap water reports by ZIP in Chehalis
- 98532 - Chehalis tap water report Some concern
Water utilities serving Chehalis, 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.
- CHEHALIS WATER DEPARTMENTSome concern
Also covers / overlaps with
- Bunker CCD, WA · Township
- Centralia-Chehalis CCD, WA · Township
- Logan Hill CCD, WA · Township
- Napavine, WA
- Newaukum Prairie CCD, WA · Township
- Winlock-Pe Ell CCD, WA · Township