NYC-WTC_000220544

NYC 9/11 Public Portal Document

] Prepared Exclusively For: PEDNEAULT ASSOCIATES, INC. NYCDEP-Emergency Response & Tech Assmt. leiJ.WTTHAt'EKUE. BOX205, BOHEMIA. N.Y. 11716

96-05 Horace Harding Expressway LAB NUMBER: 01100235 Corona , NY 11368 PROJECT ID -.WORLD TRADE CENTER-5 Bourough Sampling (718) 595-4650 MR. M. FAWZY, DIRECTOR DATE RECEIVED RELEASE DATE REPORT DATE 10/10/01 10/12/01 10/12/01 COLLECT DATE: SAMPLE ID#: MATRIX: SAMPLE ORIGIN:

AIR\GAS TRIP BLANKS 10/10/01 4:00 PM 01100235-007

PARAMETER METHOD RESULT UNITS Aluminum (Al) OSHA ID 121/125G 0.03 mg/m3 Antimony (Sb) OSHA ID 121/125G <0.01 mg/m3 Arsenic (As) OSHA ID 121/125G <0.01 mg/m3 Barium (Ba) OSHA ID 121/125G <0.01 mg/m3 Beryllium (Be) OSHA ID 121/125G <0.01 mg/m3 Cadmium (Cd) OSHA ID 121/125G <0.01 mg/m3 Calcium (Ca) OSHA ID 121/125G <0.01 mg/m3 Chromium (Cr) OSHA ID 121/125G 0.02 mg/m3 Copper (Cu) OSHA ID 121/125G 0.05 mg/m3 Iron (Fe) ' 0.93 mgYm^ LeadTPbT''''''*^^ CTOHAIDT21^^^^^~ <0.01 mg/m3~ Magnesium (Mg) OSHA ID 121/125G 0.01 mg/m3 Manganese (Mn) OSHA ID 121/125G 0.09 mg/m3 Mercury (Hg) OSHA ID 121/245.5 <0.01 mg/m3 Nickel (Ni) OSHA ID 121/125G <0.01 mg/m3 Potassium (K) OSHA ID 121/125G 0.35 mg/m3 Selenium (Se) OSHA ID121/125G <0.01 mg/m3 Silver (Ag) OSHA ID 121/125G <0.01 mg/m3 Sodium (Na) OSHA ID 121/125G <0.01 mg/m3 Thallium (Tl) OSHA ID 121/125G 0.01 mg/m3 Zinc (Zn) OSHA ID 121/125G <0.01 mg/m3

John Pedneault Page 71 of 240 Lab Director NYS ELAP #10224 Reported results are reflective of TOTAL, Metals @ 2L per min/15 min run. mwbe #46075

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CITY_21MC100_002835074

NYC-WTC_000220556