Law Department notice on WTC document preservation, Oct 2001

NYC 9/11 Public Portal Document

• Establishing Support Area and Facilities • Assist with photo documentation and resident visits • Isolate study areas from common areas (plastic sheeting and adhesive tape) • Clean common areas (HEPA vacuum and wet wipe horizontal surfaces) Hallways, Building entry ways, Laundry rooms. Stairs and wells. Elevator well, roof mechanical room, interior and lobby. Trash compactor and utility rooms (5), and Basement • Clean previously cleaned areas using the techniques to be evaluated • Clean areas not previously cleaned using the techniques to be evaluated • Clean non-study areas • Dispose of wastes • Decontaminate cleaning equipment • Demobilization

4.0 HAZARD ANALYSIS

The evaluation of hazards is based upon the knowledge of project background information presented in Section 3, and anticipated risks posed by the specific tasks/operations to be performed. Section 4 presents a general description of project hazards. Section 4.2 describes the specific hazards associated with each task/activity, and identifies the hazard control measures to be implemented during completion of these tasks.

4.1 General Hazard Analysis

Potential/ Anticipated Hazards

CHEMICAL YES SLIPS, TRIPS, & FALLS SAME YES LEVEL ASBESTOS YES SLIPS, TRIPS, & FALLS YES DIFFERENT LEVEL FIRE/EXPLOSION NO HEAVY EQUIPMENT/ YES VEHICULAR TRAFFIC HEAT STRESS YES OVERHEAD HAZARDS YES MACHINERY/ YES ELECTRICAL/ UTILITY YES MECHANICAL EQUIPMENT HAZARDS NOISE YES CONFINED SPACE NO

-001 WRS Infrastructure and Environment, Inc. 10

NYC-WTC_000145087