Is Chain Lake, WA Tap Water Safe to Drink?
Chain Lake, 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 Chain Lake Get Its Water?
Water in Chain Lake, WA is provided by 4 public water systems: EVERETT PUBLIC WORKS DEPT. CITY OF, MONROE WATER SYSTEM, WA, SNOHOMISH CITY OF and SNO PUD 1 - LAKE STEVENS.
How Is Chain Lake Tap Water Treated?
Treated water is disinfected using free chlorine. Treatment includes conventional treatment (coagulation, flocculation, and filtration), in-line filtration, post-ozone biofiltration and slow sand filtration.
What's in Chain Lake Tap Water?
The following contaminants were detected most frequently in Chain Lake 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 |
| 11Cl-PF3OUdS | 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 Chain Lake
Current EPA monitoring data for Chain Lake 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 Chain Lake Tap Water
Is Chain Lake tap water safe to drink?
Chain Lake 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 Chain Lake tap water?
The most commonly detected contaminants in Chain Lake water systems include: lithium, PFTrDA, 11Cl-PF3OUdS. See the ZIP-level reports for exact measurements and EPA guideline comparisons.
Where does Chain Lake get its drinking water?
Chain Lake receives water from 4 public water systems, including EVERETT PUBLIC WORKS DEPT. CITY OF.
Do I need a water filter in Chain Lake?
Current data does not show guideline exceedances in Chain Lake. A certified filter can still reduce trace contaminants and improve taste for households that prefer filtered water.
How often is Chain Lake tap water tested?
Public water systems in Chain Lake 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 2025-10-07.
Tap water reports by ZIP in Chain Lake
- 98290 - Chain Lake tap water report Some concern
Water utilities serving Chain Lake, 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.
- MONROE WATER SYSTEMAction advised
Also covers / overlaps with
- Fobes Hill, WA · CDP
- Granite Falls CCD, WA · Township
- Lake Bosworth, WA · CDP
- Lake Roesiger, WA · CDP
- Monroe CCD, WA · Township
- Snohomish, WA
- Snohomish CCD, WA · Township
- Three Lakes, WA · CDP