# Third or fourth degree chemical burns and corrosions at AECOM
> OSHA SIR `20191011092` · 10/24/2019 · CORINTH, MISSISSIPPI
## Severity
- **1 hospitalization**
- **Body part:** Lower leg(s)
- **Nature of injury:** Third or fourth degree chemical burns and corrosions
## Cause
- **Event:** Fall through surface or existing opening less than 6 feet
- **Source:** Tanks, bins, vats-nonconfined space
- **Secondary source:** Chemicals and chemical products, unspecified
## Employer
- **Name:** AECOM
- **Location:** 501 Cardinal Drive, CORINTH, MISSISSIPPI, 38834
- **NAICS:** 541330
- **Jurisdiction:** 1
## Narrative

An AECOM maintenance employee was troubleshooting a malfunctioning encoder device. To access the device, the employee had to stand on top of a tank holding a caustic cleaning solution, about 3 feet off the ground. The employee's left leg slipped through one of the access covers and was immersed in the caustic solution up to the knee. The employee suffered third-degree burns to the lower leg.

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*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*