Law Department notice on WTC document preservation, Oct 2001

NYC 9/11 Public Portal Document

9.0 SITE CONTROL MEASURES

9.1 Control Zones

Control boundaries will be established at the site. The exclusion zone, contamination reduction zone (decontamination zone) and support zone will be designated. A decontamination corridor will separate the Support areas of the project site from exclusion zones. The corridor should be split down the middle with a control line. One side of the corridor is for clean entiy into exclusion zones and the other side is for decontamination of personnel and equipment. It may be necessary to protect the support zone from fugitive dust by placing it under positive pressure with the exhaust of a Negative air machine.

The Response Manager has been designated to coordinate access control on the work site. No unauthorized person shall be allowed beyond the contamination control line. During all activities in the exclusion zone, the implementation of a buddy system is mandatory.

Standing orders for the exclusion zone and contamination reduction zone are presented on the following page.

9.2 Site Communications Plan

Hand signals, radios, and mobile telephones are the modes of communication to be used at the site. The Response Manager will review hand signals with all site personnel prior to the start of the project and periodically at daily safety meetings. Standard hand signals include:

ACTION .A-.. 'MEANING - Hands aroimd throat - out of air/can't breathe Thumbs up__________ -OK/yes_______________________ Thumbs down - negative, no___________________ Hands on top of head - need assistance_________________ Grip partner's wrist/waist - leave area immediately

No one will be permitted to break visual contact while in the exclusion zone or contamination reduction zone. The buddy system will be strictly adhered to. When working in the exclusion zone, personnel will not be allowed to work alone. The buddy system will be in place to provide aid in case of an emergency.

A telephone will be available in the support zone. Emergency assistance telephone numbers will be posted by this telephone. The Project Manager is responsible for the management of communications during normal and emergency operations.

93 Sanitation Facilities

Sanitation facilities will be located within the support zone. They will include hand and face washing facilities and toilets.

-001 WRS Infrastructure and Environment, Inc. 19

NYC-WTC_000145096