# NRC NOV – NOV (SL III)
> **EA-01-151** · NOV · Severity SLIII · Issued 2001-09-13 · Materials Licensees
## Action
- **EA Number:** EA-01-151
- **Licensee:** NOV (SL III)
- **Category:** Materials Licensees
- **Action type:** NOV
- **Severity level:** SLIII
- **Date issued:** 2001-09-13
## Description

On September 13, 2001, a Notice of Violation was issued for a Severity Level III violation involving the failure to secure from unauthorized removal or limit access to a strontium-90 sealed source with a nominal activity of 20 millicuries and failure to control and maintain constant surveillance of this licensed material.

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