Security requirements

• Aisle space in the CAA must be sufficient to allow emergency responders or equipment to move freely in the area.
• LQGs must install a 24-hour surveillance system, an artificial or natural barrier, a means to control entry at all times, and a sign saying “Danger - Unauthorized Personnel Keep Out”.

Large quantity generators (LQGs) must address security concerns in hazardous waste accumulation areas. Waste should be accumulated in a secure area where it can't be accessed by unauthorized or untrained employees, the public, or even animals. Central accumulation areas (CAAs) are often called “180-day” or “90-day” storage areas, depending on the company’s waste generator category.

Aisle space in the CAA must be sufficient to allow emergency responders or equipment to move freely in the area.

In addition to preventing unauthorized people and animals from entering the storage area, LQGs must also install:

1. A 24-hour surveillance system (e.g., television monitoring or surveillance by guards or facility personnel) which continuously monitors and controls entry onto the active portion of the facility; or
2. An artificial or natural barrier (e.g., a fence in good repair or a fence combined with a cliff), which completely surrounds the active portion of the facility;
3. A means to control entry, at all times, through the gates or other entrances to the active portion of the facility (e.g., an attendant, television monitors, locked entrance, or controlled roadway access to the facility); and
4. A sign saying “Danger - Unauthorized Personnel Keep Out,” must be posted at each entrance to the active portion of a facility, and at other locations, in sufficient numbers to be seen from any approach to this active portion. The signs must be in English and in any other predominant language and be readable from a distance of 25 feet away.