Legal hold notice for WTC documents, undated

NYC 9/11 Public Portal Document

4 Financial Center

Inspection of building rovoalod oontamination of lobby areas, restaurant and several bars. Some windows blown out on facade facing south. Will put outside areas on list for cleanup as priority. Building owna responsible for all inside areas, facade and roof top. Building management has all readv secu^ pgimeter of building and has begun cleanup work.

Greenwich to Bdway between chambers and Murray Cleanup work was completed on 9/20/01 at OSOOhours in the area from Greenwich to Broadway, between Chambers and Murray. Advised that Construction company is responsible to insure no emissions from vehicles occur. At minimum, all loads must be substantially wet down, covered with taips, and vehicles washed. Air monitoring was fondueted in this area to maintain olearanoe levels. Four air samples were taken in the proposed area each day. All four samples passed clearance level. These results were as follows:

10/2/01 Park Place and church .007 fibos/cc Fade Place and Greenwich .008 fibers/cc Murray and Church .007 fibers/cc Murray and Greenwidi .008 fibers/cc

DOH Received draft vehicle advisory as promised from DOH. Made comments and returned. Birst Response

First Response p^nnel Fawzy and Haas made entry with FDNY and ESU into a new im chartered area in the southwest corridor below the trade center. DEF provided real time monitoring for vital support g; inthccnvir!SSHmt and took air and water samples for further analysis. Investigation of the stability of the slurry wall was performed by aP®, PSpisHl S iPlsofwaffiMDffiflteiiDStfiiiswWSviiias river. Additionally, air and water samples were taken to check for R22 refrigerant. An attempt was made by rafts to try to get through a flooded area to the freon tanks to assess there condition but was unsuccessful because of debri in die pathway. * Analytical lab results indicate the presence of sea water in the samples. The FDNY Office of Chief Bob Ingraham has been notified of die results.

The daily ground zero monitoring for dangerous gases showed normal background levels.

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