FEMA toxic substances disaster declarations
Incident type "Toxic Substances" · 8 declarations · 7 states and territories
FEMA has made 8 state declarations with incident type "Toxic Substances" since 1962: 3 major disasters, 5 emergencies. New York has had the most (2). The busiest year was 1962 (2).
Declarations per year, 1962 to 2016
State declarations per calendar year of the declaration date.
Source: FEMA OpenFEMA Disaster Declarations Summaries (v2), through October 2, 2026: one declaration per disaster number and state. OpenFEMA dataset page.
Which states have the most toxic substances declarations?
Source: FEMA OpenFEMA Disaster Declarations Summaries (v2).
The counties named in the most toxic substances declarations
Source: FEMA OpenFEMA Disaster Declarations Summaries (v2): distinct declarations that name the county.
The most recent toxic substances declarations
| Declared | Number | State | Title | Areas named |
|---|---|---|---|---|
| 2016-01-16 | EM-3375 | Michigan | Contaminated Water | 1 |
| 1992-09-16 | EM-3094 | Rhode Island | Water Contamination | 2 |
| 1987-09-04 | EM-3092 | Wyoming | Methane Gas Seepage | 1 |
| 1981-03-17 | DR-636 | Kentucky | Sewer Explosion, Toxic Waste | 1 |
| 1980-05-21 | EM-3080 | New York | Chemical Waste, Love Canal | 1 |
| 1978-08-07 | EM-3066 | New York | Chemical Waste, Love Canal | 1 |
| 1962-11-05 | DR-139 | Louisiana | Chlorine Barge Accident | 1 |
| 1962-10-10 | DR-135 | Mississippi | Chlorine Barge Accident | 1 |
Source: FEMA OpenFEMA Disaster Declarations Summaries (v2), through October 2, 2026. OpenFEMA dataset page.