Layoff notices in Walnut at a glance
Walnut employers have filed 7 WARN notices with the EDD since July 1, 2014, naming 410 workers. The most recent notice is dated Sep 28, 2026. 2 of the notices show fewer than 60 days between notice and effective date outside the 2020 COVID window; the 60-day rule explains what that gap can mean for the workers involved. Since the EDD began reporting industry in 2026, the sectors filing most here are Administrative and Support and Waste Management and Remediation (5 workers).
Notices in fiscal year 2022-2023, newest first
2 notices, 118 workers. Show all years.
| Employer | Notice date | Effective | Workers | Type | Days notice |
|---|---|---|---|---|---|
| Cerebral, Inc. | Feb 27, 2023 | Apr 30, 2023 | 31 | Layoff, permanent | 62 |
| Proterra Operating Company, Inc. | Jan 19, 2023 | Mar 31, 2023 | 87 | Layoff, permanent | 71 |
Largest layoffs in Walnut since 2014
| Employer | Notices | Workers | Latest |
|---|---|---|---|
| Unical Aviation dba Unical 145, Inc. | 1 | 141 | Mar 22, 2020 |
| Quest Nutrition, LLC | 1 | 122 | Aug 9, 2017 |
| Proterra Operating Company, Inc. | 1 | 87 | Jan 19, 2023 |
| Cerebral, Inc. | 1 | 31 | Feb 27, 2023 |
| Santa Fe Distributing, LLC | 1 | 21 | Nov 30, 2015 |
| Constellis, LLC | 1 | 5 | Sep 28, 2026 |
| Alright Media LLC | 1 | 3 | May 1, 2020 |
Walnut by fiscal year
| Fiscal year | Notices | Closures | Workers |
|---|---|---|---|
| 2026-2027 | 1 | 0 | 5 |
| 2022-2023 | 2 | 0 | 118 |
| 2019-2020 | 2 | 0 | 144 |
| 2017-2018 | 1 | 1 | 122 |
| 2015-2016 | 1 | 1 | 21 |
Local help after a layoff in Walnut
A WARN notice is the start of a paper trail, not the end of your rights. Workers in Walnut bring WARN back-pay claims in the Superior Court of the county, and the agency routes for the questions that usually travel with a layoff are the same statewide: unpaid final wages and vacation payout go to the Labor Commissioner, discrimination in who was selected goes to the Civil Rights Department (three years to file) or the EEOC (300 days). Our county employment law page covers the local courts, agencies and deadlines. See also all notices in the county. Free, confidential review: (800) 371-3088.
Source: California EDD WARN reports, July 2014 to Oct 27, 2026. County and city are as stated on the notice; for 2014 to 2017 filings, where the EDD listed only a city, the county is assigned from that city. Back to the layoff tracker.
About this data: Notices come from the California Employment Development Department WARN reports (fiscal years 2014-2015 to today) and are reloaded from the EDD every Tuesday and Thursday. Employer names appear as the employer wrote them on the notice, grouped where the names clearly refer to the same company. A notice is not a finding that any law was broken. This page is general information, not legal advice about your situation.