Is Mountlake Terrace tap water safe to drink?
- Edmonds CCD, WA
- Firdale
- Mountlake Terrace
The short answer for Mountlake Terrace
Mountlake Terrace tap water has 1 detected contaminant, currently below EPA limits (tested February 2024). 6:2 FTS measured closest to the threshold. See the full compound-by-compound report.
The health risk for Mountlake Terrace
- PFAS or other chemicals detected; no confirmed exceedances in multiple samples.
6:2 FTS (a PFAS 'forever chemical') was detected below EPA limits. A certified filter can still add an extra layer of protection.
Here's what actually removes PFAS from your water
The right filter eliminates PFAS at the tap. But not all filters do - and the type you choose matters for your home.
Common pitchers like Brita do not remove PFAS. You need a filter independently certified to NSF P473 (for pitcher filters) or NSF/ANSI 58 (for reverse osmosis systems). All three options below carry the relevant certification.
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| 6:2 FTS Tested: February 2024 · Alderwood Intertie |
0.005 µg/L | 0.005 µg/L | 100% of limit |
View all tested compounds
Alderwood Intertie · Tested: February 2024
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| 6:2 FTS | 0.005 µg/L | 0.005 µg/L | 100% of limit |
| lithium | <9.000 µg/L | 10 µg/L | Below limit |
| PFHxS | <0.003 µg/L | 0.004 µg/L | Below limit |
| HFPO-DA | <0.005 µg/L | 0.01 µg/L | Below limit |
| PFNA | <0.004 µg/L | 0.01 µg/L | Below limit |
| PFHxA | <0.003 µg/L | 3 µg/L | Below limit |
| PFBA | <0.005 µg/L | 6 µg/L | Below limit |
| 11Cl-PF3OUdS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 4:2 FTS | <0.003 µg/L | 0.003 µg/L | Below limit |
| 6:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 8:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 9Cl-PF3ONS | <0.002 µg/L | 0.002 µg/L | Below limit |
| ADONA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFBS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDoA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFOA | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFOS | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFPeA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFTrDA | <0.007 µg/L | 0.007 µg/L | Below limit |
| PFUnA | <0.002 µg/L | 0.002 µg/L | Below limit |
Water utilities serving ZIP 98043
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- MOUNTLAKE TERRACE CITY OFSome concern
Frequently Asked Questions about ZIP 98043 Tap Water
What's in ZIP 98043 tap water?
ZIP 98043 has 1 detected contaminant below EPA limits in this dataset. 6:2 FTS measured closest to its guideline.
Will boiling ZIP 98043 tap water remove 6:2 FTS?
Boiling tap water can kill many pathogens, but it does not remove most chemical contaminants tracked in EPA monitoring. Several dissolved contaminants can even concentrate as water evaporates. For the chemical contaminants reported in ZIP 98043, a certified filter is more reliable.
Do basic pitcher filters remove 6:2 FTS?
Basic pitcher filters are typically rated for chlorine, taste, and odor (NSF/ANSI 42), not for the broader list of contaminants tracked in EPA monitoring. Match the certification (NSF/ANSI 42, 53, 58, or P473) to the specific compounds listed in this report before assuming a filter helps.
Who provides tap water in ZIP 98043?
Public records identify MOUNTLAKE TERRACE CITY OF as a primary water system associated with ZIP 98043. Service boundaries can vary by address, so confirm exact service with the utility.
When was ZIP 98043 tap water last tested?
The most recent test date used in this report is February 2024. EnviroClarity last refreshed this page on 2026-05-04.
Where can I find the official water quality report for ZIP 98043?
Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact MOUNTLAKE TERRACE CITY OF or visit their website for the latest official report covering ZIP 98043. The EPA also maintains a national CCR locator.
Check another ZIP code
Nearby ZIP reports
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- 98037 - Larch Way, Lynnwood tap water report
- 98021 - Edmonds CCD, Bothell tap water report
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Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.