# NRC CAL – NOV (SL III)
> **EA-00-124** · CAL · Severity SLIII · Issued 2000-05-17 · Materials Licensees
## Action
- **EA Number:** EA-00-124
- **Licensee:** NOV (SL III)
- **Category:** Materials Licensees
- **Action type:** CAL
- **Severity level:** SLIII
- **Date issued:** 2000-05-17
## Description

On May 17, 2000, a Notice of Violation for a Severity Level III was issued. The action was based on the failure to control and maintain constant surveillance of licensed materials. Specifically, a portable nuclear density gauge containing 10 millicuries of cesium-137 and 50 millicuries of americium-241 was left unattended for a short period of time. During that time the gauge was run over by a construction vehicle and was crushed.

## Source
- [NRC Materials Licensees index](https://www.nrc.gov/reading-rm/doc-collections/enforcement/actions/materials/)
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