Environmental record cover sheet, 333 Rector Place

NYC 9/11 Public Portal Document

SciLab Job #: 201093082 Page 8 of 9 Client Name: GCI Environmental Advisory, Inc. Phase Contrast Microscopy (PCM) Fiber Results NO1-B4087; Rockrose Development Corp.; 333 Rector Place, NYC (Various Floors) Flow Air Fiber Fibers SciLab Client Date Rate Duration Filtered Density 2 Fields Fibers Conc. TWA Sample # Sample # / Location Collected (liters/min.) (min.) (liters) (Fibers/mm ) (Fibers/cc)

97 333-9/25-097 9/25/01 15 80 1200 100 4 5.10 < 0.002 Apt Room Kitchen (AQ) 98 333-9/25-098 9/25/01 15 80 1200 100 1 1.27 < 0.002 Apt Room Kitchen (AQ) 99 333-9/25-099 9/25/01 15 80 1200 100 5 6.37 < 0.002 Apr PII Room Kitchen (AQ) 100 333-9/25-100 9/25/01 15 80 1200 100 3 3.82 < 0.002 Apt; Room Kitchen (AQ) 101 333-9/25-101 9/25/01 15 80 1200 100 2 2.55 < 0.002 Apt] Room Kitchen (AQ) 102 333-9/25-102 9/25/0! 0 0 0 100 0.5 0.64 Blank Footnotes: 1 103 333-9/25-103 9/25/01 0 0 0 100 0.5 0.64 Blank Footnotes: 1 104 333-9/25-104 9/25/01 15 80 1200 100 3 3.82 < 0.002 Apt.; Room Kitchen (AQ) 105 333-9/25-105 9/25/01 15 80 1200 100 4 5.10 < 0.002 Apt.; Room Kitchen (AQ) 106 333-9/25-106 9/25/01 15 80 1200 100 2 2.55 < 0.002 AptJ Room Kitchen (AQ) 107 333-9/25-107 9/25/01 15 80 1200 100 3 3.82 < 0.002 Apt ;Room Kitchen (AQ) 108 PII; 333-9/25-108 9/25/01 15 80 1200 100 2 2.55 <0.002 Apt ;Room Kitchen (AQ) 109 333-9/25-109 9/25/01 15 74 1110 100 7 8.92 0.003 Apt I Room Kitchen (AQ) 110 333-9/25-110 9/25/01 15 80 1200 100 6 7.64 0.002 Apt s Room Kitchen 111 333-9/25-111 9/25/01 15 80 1200 100 4 5.10 < 0.002 Apt;._._._._Room Kitchen (AQ)

NYC-WTC 000120624