Public water system record
King County Water District #125
Serves SeaTac and Tukwila, King County, WA · 21,904 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for King County Water District #125 in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- King County Water District #125 buys its water from Seattle Public Utilities, King County Water District #20 and Skyway Water & Sewer.
- Record on file since 1992, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 1,194 unknown out of 3,416 service lines.
Check whether King County Water District #125 serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
Full record since 1992
EPA's records for King County Water District #125 go back to 1992. Before October 19, 2016 they list 1 health-based violation (1 archived by EPA without a recorded fix) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 2 |
| 2010 to October 18, 2016 | 0 | 1 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began January 1992, Archived.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 1992 | Archived |
Where the water comes from
King County Water District #125 buys its water from Seattle Public Utilities, King County Water District #20 and Skyway Water & Sewer. It lists no wells or intakes of its own. It also has emergency connections to Tukwila Water Department and Highline Water District. 2 other public water systems have emergency connections to King County Water District #125.
Buys water from
- Seattle Public Utilities Seattle, WA
- King County Water District #20 Seattle, WA
- Skyway Water & Sewer Seattle, WA
Emergency or part-time connections to
- Tukwila Water Department Tukwila, WA
- Highline Water District Kent, WA
Annual water quality report
King County Water District #125 must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Washington.
Certified drinking water labs by state EPA guidance for private wells