On July 21, 2006, a Notice of Violation was issued for a Severity Level III violation involving the failure to implement written procedures to provide high confidence that each patient treatment is in accordance with the treatment plan and written directive, and that both manual and computer generated dose calculations are verified. As a result of the failure to verify that an HDR treatment was administered in accordance with the written directive, a dose was calculated and delivered to a depth of one centimeter rather than the prescribed two centimeter depth, resulting in an underdose of 57%.