80 JOHN STREET; Block: 68 Lot: 33 BIN: 1001115 19-25 Gold Street, 25-27 Platt Street

NYC 9/11 Public Portal Document

INC. JLC ENVIRONMENTAL CONSULTANTS, New York, New York 10003 200 Park Avenue South, Suite 1001, 420-6092 Phone: (212) 420-8119 Fax: (212) Project No.: 01-2240

FLAP Lab Code: 11029 Analyte: FIBERS WSA Management Date Received: 12/13/01 All-IA Lab Code: 100273 100 Ring Road West NIOSH and 101953 Date Analyzed: 12/13/01 NVLAP'Lab Code: Garden City, NY 11530 Batch #: D112A970 SUMMARY OF ANALYTICAL RESULTS - PCM Site: 80 John Street, New York, NY f ~

RESULTS(!/cc) SAMPLE # TIME(min) VOLUME(L) FIB/FIELD COLLECTED DESCRIPTION / LOCATION LAB #

95 1427.8 2/100 <0.001<LOD 007 Ambient/ 6th Floor/ Corridor/ South Side With 13-December South Wall A 9870

95 1427.8 3/100 0.001<LOD 008 Ambient/ 6th Floor/ Corridor/ North Side With 13-December North Wall A 9871

0/100 009 FIELD BLANK 13-December A 9872

0/100 010 FIELD BLANK 13-December A 9873

<LOD = Less than limit of detection which is 5.5 Fibers/ 100 Fields Particles) Sample Analysis by: VOID1 = H.C.P. ( High Concentration of Overloaded Positive Phase Contrast Microscopy (PCM) VOID2 = Analysis_ Method of Sample Preparation and Counting Rules. Issue 2, August 1994 the NIOSH 7400 Method using "A" All samples analyzed in accordance with M me_ Instrumentation: u am ac twa a -Beckett Graticule (100um field diameter). Laboratory Director Olympus PCM Model BH-2 with Walton Report Date: December 13, 2001 limitations, this meth described as NIOSH 7400. Among other counts within the limitations of the method all claims arising out of JLC's analysi JLC is responsible for only the fiber asbestos concentration. Any and provides only an estimate of costs b gives only an index of airborne fibers and other liability and the client agrees to seek no are limited in recovery to the cost of analyzing samples. JLC accepts no these samples the above. Page 2o12

NYC-WTC 000108637