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Legal hold notice for WTC documents, undated

Machine-extracted title · confidence 98%

Notice instructing staff to preserve original World Trade Center documents for potential legal actions against the City.

NYC-WTC_000148192–000148619

Folder label: “AIR ASBESTOS MONITORING REPORTS

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NYC 9/11 Public Portal Document 09/20/2001 14:02 6314676905 PEDNEAULT ASSOCIATES PAGE 03/13

Prepared Exclusively For: PEDREAULT ASSOCIATES, INC. 6 1171 1615NINTH AVENUE, BOX 205, BOHEMIA, N.Y. N.Y.C. D.E.P. HAZMAT DIVISION 59-17 JUNCTION BOULEVARD LAB#: 01090180 CORONA , NY 11368 PROJECT ID WORLD TRADE CENTER (718) $95-643] MATRIX: AIRIGAS

0.0735 USEPA TO-15 9/15/01 Toluene 4.37 ppb v/v 0.0071 USEPA TO-15 9/15/01 ND ppb v/v 1.2-Dibromoethane 5.63 ppb v/v 0.0845 USEPA TO-15 9/15/01 Totrachioroethone ppb v/v 0.1343 USEPA TO-15 9/15/01 Chlorobenzene ND ppb v/v 0.0744 USEPA TO-15 9/15/01 Ethylbenzene 1.17 ppb v/v 0.1785 USEPA TO-15 9/15/01 3.97 m,p-Xyiene ND ppb v/v 0.0896 USEPA TO-15 9/15/01 Styrene ND ppb v/v 0.1471 USEPA TO-15 9/15/01 1,1,2,2-Tetrachloroethane 1.75 ppb v/v 0.0111 USEPA TO-15 9/15/01 o-Xylene 1.18 pph vNv 0.0757 USEPA TO-15 9/15/01 1,3,5-Trimethylbenzene ND ppb v/v 0.1511 USEPA TO-15 9/15/01 1,2,4-Trimethylbenzene ND ppb v/v 0.1564 USEPA TO-15 9/15/01 1,3-Dichlorobenzene ND ppb v/v 0.189 USEPA TO-15 9/15/01 1,4-Dichlorobenzene ND ppb viv 0.2014 USEPA TO-15 9/15/01 1,2-Dichlorobenzene ND ppb v/v 0.1785 USEPA TO-15 9/15/01 1,2,4-Trichlorobenzene ND ppb v/v 0.1976 USEPA TO-15 9/15/01 Hexachloro-1,3-Butadiene USEPA TO-15 9/15/01 I entatively Identified Compounds 73.6 ppb v/v USEPA TO-15 9/15/01 3.3.5-Trimethyl heptane 5.21 ppb v/v 0.128 USEPA TO-15 9/15/01 Methyl-tert-butyl ether 45.1 ppb v/v USEPA TO-15 9/15/01 2,3,6-Trimethylheptane ppb v/v USEPA TO-15 9/15/01 2,2-Dimethyl octane 74.1 ppb v/v USEPA TO-15 9/15/01 n,r-di-2-propenyl urea 105 206 ppb v/v USEPA TO-15 9/15/01 2,8-Dimethylundecane 107 ppb v/v USEPA TO-15 9/15/01 3,7-Dimethyl nonane 76.9 ppb v/v USEPA TO-15 9/15/01 2,3,6,7 Tetramethyloctane

Page 2 of 12 John Pedneault ND=RESULT IS EQUAL TO OR LESS THAN MDL NYS ELAP #10224 Lab Director MWBE #46075

NYC-WTC 000148208

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NYC-WTC_000148208Source: NYC Law Department, mirrored locally

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