Pennsylvania Code
Title 25 - ENVIRONMENTAL PROTECTION
Part I - Department of Environmental Protection
Subpart D - Environmental Health and Safety
Article V - Radiological Health
Chapter 236 - LOW-LEVEL RADIOACTIVE WASTE MANAGEMENT AND DISPOSAL
Subchapter D - DESIGN REQUIREMENTS FOR THE REGIONAL DISPOSAL FACILITY
DESIGN CRITERIA
Section 236.320 - Protection from inadvertent intruders

(a) The disposal facility shall include intruder barriers for Class B, Class C and mixed wastes. At a minimum, these disposal units shall include an intruder barrier that is an engineered structure, designed to resist inadvertent intrusion for:

(b) If more than one class of waste is disposed of in the same unit, the more stringent intruder requirement shall be met.

(c) The disposal facility design shall, to the extent practicable, limit radiation exposures to the inadvertent intruder to an annual whole body dose equivalent of 25 millirems.