NYC-WTC_000187255

NYC 9/11 Public Portal Document

10/17/2001 15:15 6314676305 PEDNEAULT ASSOCIATES PAGE 13

^PEDNEAULTASSOCIATES, INC. J615 NINTH A VENUE. BOX 205 BOHEMIA. N.Y. 11716 Phone rdSl) 467-8477 Fax: (631) 467-6905 AMERICA'S TEST LAR!

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NYCDEP-Emergency Response & Tech Assmt. IlSISWI^ffAirEWJE:. BOX205 N.r. II7I6

96-05 Horace Harding Expressway LABi^: 01100307 Corona NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718)595-4650 MATRIX: AIR\GAS

COIXECT DATE DATE RECEIVED RELEASE DATE REPORT DATE (9/15/0/5:00 PM 10/15/01 9:45:00 AM 10/17/01 10/17/01 SAMPLE ORIGIN BROADWAY AVE & 31 st ST., QUEENS SAMPLE DO#; 01100307-001 RESULT UNITS M.D.L. METHOD ANALYSIS DATE Dichlorodifluoromethane 1.69 ppb v/v 0.123 USEPATO-15 10/15/01 Chlofomethane 1.83 ppb v/v 0.1037 USEPATO-15 10/15/01 1,2-D(chlorotetrafluoro ethane ND ppb v/v 0.2086 USEPATO-15 10/15/01 Vinyl Chloride ND ppb v/v 0.1249 USEPATO-15 10/15/01 Bromomethane ND ppb v/v 0.2418 USEPA TO-i5 10/15/01 Chloroethane ND ppb v/v 0.2473 USEPATO-15 10/15/01 Trichlorofluoramethane 0.88 ppb v/v 0.1839 USEPATO.15 10/15/01 1,1-Olchloroethene ND ppb v/v 0.0799 USEPATO-15 10/15/01 Methylene chloride ND ppb v/v 0.1909 USEPATO-15 10/15/01 Freon 113 ND ppb v/v 0.161 USEPATO-15 10/15/01 1,1-Dichtorootharre ND ppb v/v 0.1398 USEPATO-15 10/15/01 Methyl-tert-butyl ether 10.3 ppb v/v 0.128 USEPATO-15 10/15/01 cis-1,2-Dlchloroethone ND ppb v/v 0.1783 USEPATO-15 10/15/01 Chloroform ND ppb v/v 0.1681 USEPATO-15 10/15/01 1,2-Oichloroethane ND ppb v/v 0.1688 USEPATO-15 10/15/01 1,1,1-Trlchloroethane 0.15 ppb v/v 0.0974 USEPATO-15 10/15/01 Benzene 1.99 ppb v/v 0.1201 USEPA TO-15 10/15/01 Carbon Tetrachloride 0.13 ppb v/v 0.0922 USEPATO-15 10/15/01 1,2-Dichloropropane ND ppb v/v 0.1133 USEPATO-15 10/15/01 Trichloroethene ND ppb v/v 0.1329 USEPATO-15 10/15/01 Ci6-1,3-DichIoropropene ND ppb v/v 0.0924 USEPATO-15 10/15/01 trans-1,3-Dlchloropropene ND ppb v/v 0.1222 USEPATO-15 10/15/01

John Pedneault Page 1 of 16 ND-RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWBE #46075

CITY_21MC100_002966114

NYC-WTC_000187255