US WARN layoff notices › Employers › Advanced Drainage Systems
Official state WARN filings by Advanced Drainage Systems since 2024, normalized from state labor department sources. Latest notice: 2025-01-28.
| Notice date | State | Location | Employees | Effective date | Type |
|---|---|---|---|---|---|
| 2025-01-28 | Washington | Olympia | 54 | 2025-03-29 | Closure |
Source: state WARN Act disclosures, normalized in the free US WARN notices dataset (CSV/JSON, no login, 48h-delayed, notices 2024+). WARN notices are advance notifications of plant closings and mass layoffs; actual layoff counts and dates can change after filing.