Lead Service Lines at PORT OF SEATTLE/SEATAC AIRPORT
PORT OF SEATTLE/SEATAC AIRPORT serves about 49,000 people and uses surface water as its primary source. Like all US water systems, it is required by federal law to inventory lead service lines (LSLs)—the pipes that connect the water main to individual buildings.
What we know about this water system
This utility has not yet publicly reported lead service line inventory data. That means either the inventory process is still underway, or the results haven't been made available yet. Federal rules require water systems to complete their initial inventory by October 2024 (or 2026 for smaller systems), so this information may be posted soon.
Lead service lines pose a real but manageable risk: lead dissolves into water primarily when pipes are old, water is corrosive, or pipes are disturbed. Infants, young children, and pregnant people are most vulnerable to lead's effects on development.
What you should do now
Check directly with the utility. Contact PORT OF SEATTLE/SEATAC AIRPORT to ask:
- Has the LSL inventory been completed?
- Do they know whether your building has a lead service line?
- What corrosion control measures are in place?
Get your water tested. If you're concerned about lead, an EPA-certified lab can test a sample from your tap. The CDC recommends testing if you have young children or are pregnant. Your utility can provide a list of certified labs.
Know the signs of a lead service line. If you can see the pipe where it enters your building, lead pipes are soft, dull gray, and leave a mark if scratched with a coin. Galvanized steel pipes (which may also leach lead) are silver-gray and magnetic.
Next steps for residents
- Contact PORT OF SEATTLE/SEATAC AIRPORT directly to request your building's LSL status and ask when inventory data will be public
- Have your drinking water tested by a certified lab if you have young children, are pregnant, or live in a building built before 1980
- Ask your utility about point-of-use filters (like NSF-certified pitchers) as a temporary measure while awaiting answers
- Visit the EPA's lead and copper rule page for federal requirements and resources
Key figures
| Total inventoried lines | 0 |
|---|---|
| BIL/IIJA funding received | — |
| Replacement plan status | Not reported |
| Utility's LCRR inventory | Not provided |
Frequently asked
Does Port of Seattle SeaTac Airport water have lead?
The utility hasn't released its lead service line inventory data yet. Contact them directly to ask about your specific building and when results will be public. Lead in water comes from pipes, not the source water itself.
Is it safe to drink water from Port of Seattle SeaTac Airport?
The utility treats and monitors its water supply. If you're worried about lead, test your tap water with a certified lab—that's the only way to know your actual exposure. The CDC recommends testing if you have young children or are pregnant.
How do I know if my house has a lead service line?
Ask your water utility if they have your building's information. You can also check the visible pipe where water enters your building—lead is soft, dull gray, and scratches easily with a coin. A plumber can also inspect for you.
What should I do if my water might have lead?
Get your water tested by a certified lab. Use cold tap water for drinking and cooking (hot water leaches more lead). Point-of-use filters certified for lead removal can help while you investigate further.