# NRC CAL – NOV (SL III)
> **EA-07-166** · CAL · Severity SLIII · Issued 2007-08-02 · Materials Licensees
## Action
- **EA Number:** EA-07-166
- **Licensee:** NOV (SL III)
- **Category:** Materials Licensees
- **Action type:** CAL
- **Severity level:** SLIII
- **Date issued:** 2007-08-02
## Description

On August 2, 2007, a Notice of Violation was issued for a Severity Level III violation of 10 CFR 30.34(i). The violation involved the failure to maintain a minimum of two independent physical controls that formed a tangible barrier to secure a portable gauge from unauthorized removal during a period when the gauge was not under direct control or surveillance. Specifically, a Troxler portable gauge was found unattended on top of a two foot wall, adjacent to a new road construction project. The authorized user was out of the direct line of sight to the gauge, leaving the gauge unattended for approximately ten minutes.

## Source
- [Full enforcement letter (PDF)](https://www.nrc.gov/docs/ML0721/ML072150138.pdf)
- [NRC Materials Licensees index](https://www.nrc.gov/reading-rm/doc-collections/enforcement/actions/materials/)
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