NYC-WTC_000187271

NYC 9/11 Public Portal Document

10/23/2001 15:03 6314676905 PEDNEAULT ASSOCIATES PAGE 10

^PEDNEAULTASSOCIATES, INC.

E 1615 NINTH AVENUE, BOX 205 BOHEMIA, N.Y. 11716 Phone: (631) 467-8477 Fax: (631) 467-6905 AMERICA'S TESTLAJB! Prepared Exclusivity Por: PEDNEAULTASSOCIATES, INC. NYCDEP-Eraergency Response & Tech Assmt 161} rnNTTf AVENUE. BOX20}. BOffeMIA. f/X 1171}

96-05 Horace Harding Expressway LAB#: 01100404 Corona NY 11368 PROJECT ID WORLD TRADE CENTER- S Boro Sampling (71?) 595-4650 MATRIX: AIR\GAS

COLLECT DATE DATE RECEIVED RELEASE DATE retort DATE

“^35 PM 10/21/01 10:20.00 AM 10/23/01 10/23/01

SAMPLE ORIGIN BROADWAY AVE & 31st ST., QUEENS SAMPLE DO#: 01100404-001 RESULT urns M.D.L. METHOD analysis date Dichlorodifluoromethane 0.70 ppb v/v 0.123 USEPATO-15 10/22/01 Chloromothane 0.67 ppb v/v 0.1037 USEPATO-15 10/22/01 1,2-Dichlorotetrafluoroethane ND ppb v/v 0,2886 USEPATO-15 10/22/01 Yinyl Chloride ND ppb v/v 0.1249 USEPATO-15 10/22/01 Bromomethane ND ppb v/v 0,2418 USEPATO-15 10/22/01 Chloroethane ND ppb v/v 0.2470 USEPA TO-1S 10/22/01 Trichlofofluoromethana 0,20 ppb v/v 0,1839 USEPATO-15 10/22/01 l,l-DichlorQe(hene NO ppb v/v 0.0799 USEPA TO-15 10/22/01 Methylene chloride NO ppb v/v 0.1909 USEPATO-15' 10/22/01 Freon 113 ND ppb v/v 0.161 USEPA TO-15 10/22/01 1.1-Dichloroethane ND ppb v/v 0.1390 USEPATO-15 10/22/01 Methyl-tert-butyl ether 4.20 ppb v/v 0.120 USEPATO-15 10/22/01 cis-1,2-Dichloroethene ND ppb v/v 0,1783 USEPA TO-15 IO/22A)1 Chloroform ND ppb v/v 0.1601 USEPATO-15 10/22/01 i 1,2-Dichloroethane ND ppb v/v 0.1680 USEPATO-15 10/22/01 1,1,1-Trichloroethane NO ppb v/v 0.0974 USEPATO-15 10/22/01 I 'j Benzene 2.00 ppb v/v 0.1201 USEPATO-15 10/22/01 Carbon Tetrachloride C.11 ppb v/v 0,0922 USEPATO-15 10/22/01 ; 1,2-Dichloropropane ND ppb v/v 0.1138 USEPATO-15 10/22/01 Trichloroethene ND ppb v/v 0.1329 USEPATO-15 10/22/01 ci6-1,3-Dichloropropene NO ppb v/v 0.0924 USEPATO-15 10/22/01 trans-1,3-Dichloropropene ND ppb v/v 0.1222 USEPATO-15 10/22/01

John Padneault Page 1 of 16 ND-RESULT IS EQUAL TO OR LESS THAN MPL Lab Director NYS ELAP #10224 MWBE #45075

CITY_21MC100_0 02966266

NYC-WTC_000187271