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EPA memorandum on WTC environmental data concealment, July 2004

Machine-extracted title · confidence 85%

EPA internal memorandum addressing allegations that NYC and EPA concealed environmental data following 9/11, with evidence not previously evaluated in an August 2003 EPA Inspector…

NYC-WTC_000153780–000153811

Folder label: “WORLD TRADE CENTER - JOHN LADUCA FILES

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NYC 9/11 Public Portal Document

WORLD TRADE CENTER AIR MONITORING TABLE Fiber Asbestos Duration Sample PCM Cone. Cone, Dsfe Ambient/ Sampled Volume LOQ PCM TEM Sampled Sample ID Location Sampled Indoor (Mins) (liters) (f7cc) (f/cc) (struc./mm2) PERIMETER SAMPLES 9/12/01 10912/A20700I GREENWICH & CHAMBERS ST. AMBIENT 95 950 0.080 overload 9/12/01 10912/A207002 CENTRE & CHAMBERS ST AMBIENT 90 900 0.016 123.73 9/12/01 10912/A207003 SPRUCE & GOLD ST AMBIENT 95 950 0.040 157.48 9/12/01 10912/A207004 BROADWAY & WORTH ST AMBIENT 50 500 0.010 44.99 9/12/01 10912//V207005 W.BROADWAY & WORTH ST AMBIENT 35 350 0.010 11.25

PERIMETER SAMPLES 9/13/01 10913//Y207001 MURRAY & CHURCH ST AMBIENT 25 375 0.220 overload 9/13/01 10913/A207002 FULTON & CHURCH ST. AMBIENT 40 600 0.100 overload 9/13/01 10913/A207003 MURRAY & GREENWICH ST AMBIENT 40 600 0.01 <LOQ 9/13/01 10913/A207005 LIBERTY & CHURCH ST. AMBIENT 30 450 0.01 <LOQ 9/13/01 10913/A207004 WASHINGTON & CEDAR ST AMBIENT 30 450 0.01 <LOQ

PERIMETER SAMPLES 9/14/01 109I4/A003001 MURRAY & CHURCH ST AMBIENT 40 600 001 <LOQ 9/14/01 10914/A003002 FULTON & CHURCH ST. AMBIENT 40 600 0.007 9/14/01 10914/A003007 MURRAY & GREENWICH ST. AMBIENT 50 750 0.01 <LOQ 9/14/01 10914/A003003 LIBERTY & CHURCH ST AMBIENT 40 600 0.020 14.32 9/14/01 10914/A003004 CEDAR & TRINTY PL AMBIENT 39 585 0.027 overload 9/14/01 109I4/A003008 MURRAY BETWEEN CHURCH & BROADWAY AMBIENT 40 600 0.002 9/14/01 10914/A003009 FULTON BETWEEN CHURCH & BROADWAY AMBIENT 30 450 0.01 <LOQ HOT ZONE SAMPLES 9/14/01 10914/A003005 1 LIBERTY PLAZA - APPROX. 50 FT FROM EXPLOSION AMBIENT 50 750 0.01 <LOQ 9/14/01 10914/A003006 PARK & GREENWICH ST.- APPROX. 50 FT. FROM EXPLOSIOT AMBIENT 35 525 0.009 <6.56 DEP FACILITY 9/14/01 10914/A207006 184 AVE D, DEP PUMPING STATION - FOUR BAY AREA INDOOR 65 975 0.005

PERIMETER SAMPLES 9/15/01 109I5/A307001 MURRAY & CHURCH ST. AMBIENT 35 525 0.022 120.18 9/15/01 302-1 FULTON & CHURCH ST. AMBIENT 40 600 0.034 overload 9/15/01 LAB3#2 MURRAY & GREENWICH ST AMBIENT 45 675 0.031 overload 9/15/01 LABI #2 LIBERTY & BROADWAY AMBIENT 50 750 0.008 overload 9/15/01 LAB3#3 CEDAR & BROADWAY AMBIENT 30 450 0.033 overload 9/15/01 10915/A307003 BROADWAY & MURRAY ST AMBIENT 30 450 0.045 overload 9/15/01 10915/A307002 MURRAY BETWEEN CHURCH & BROADWAY AMBIENT 50 750 0.024 overload 9/15/01 LAB1#1 FULTON BETWi-HN CHURCH & BROADWAY AMBIENT 45 675 0.035 131.23 HOT ZONE SAMPLES 9/15/01 LAB3#1 GREENWICH & PARK PL AMBIENT 30 450 0.076 overload 9/15/01 302-2 VESEY BETWEEN CHURCH & GREENWICH ST AMBIENT 40 450 0.035 overload

PERIMETER SAMPLES 9/16/01 10916/A207003 MURRAY & CHURCH ST. AMBIENT 30 450 0.030 78.74 9/16/01 302/002 FULTON & CHURCH ST. AMBIENT 40 600 0.030 overload 9/16/01 LABI# I MURRAY & GREENWICH ST AMBIENT 45 675 0.013 78.74 9/16/01 10916/A307001 LIBERTY ST. & BROADWAY AMBIENT 35 525 0.010 overload 9/16/01 10916/A307002 CEDAR ST. & BROADWAY AMBIENT 40 600 0.030 overload 9/16/01 10916//\207004 MURRAY BETWEEN CHURCH & BROADWAY AMBIENT 45 675 0.050 overload 9/16/01 302/003 FULTON BET WEEN CHURCH & BRO/U3WAY AMBIENT 40 600 0.030 121.69 HOT ZONE SAMPLES 9/16/01 LABI #2 WASHINGTON & PARK PL AMBIENT 30 450 0.038 102.36 9/16/01 302/001 VESEY ST BETWEEN CHURCH & W.BROADWAY AMBIENT 40 600 0.024 overload INDOOR SAMPLES 9/16/01 10916/A207001 CITY HALL, 2ND FL, OUTSIDE JULIE MENDIK'S OFFICE INDOOR 120 1800 0.022 overload 9/16/01 10916/A207002 CITY HALL, 1ST FL - BLUE ROOM INDOOR 120 1800 0.011 39.37

PERIMETER SAMPLES 9/17/01 LAB1#1 MURRAY & CHURCH ST AMBIENT 45 675 0.013 43.74 9/17/01 302/001 FULTON & CHURCH ST. AMBIENT 45 675 0.017 overload 9/17/01 LAB3#00I MURRAY & GREENWICH ST AMBIENT 45 675 0.012 61.24 9/17/01 10917/A307001 LIBERTY ST. & BROADWAY AMBIENT 30 450 0.062 overload HPD BUILDING 9/17/01 LAB3#1 100 GOLD STREET - LOBBY AMBIENT 60 900 0.006 22.50 9/17/01 LAB3#2 100 GOLD STREET-9th FL AMBIENT 60 900 0.004 <11.25 BATTERY PARK CITY 9/17/01 10917/A100001 22 RIVER TERRACE, LOBBY INDOOR 120 1800 0.004 9/17/01 10917/A100002 22 RIVER TERRACE, 14th FL. INDOOR 120 1800 0 <LOQ 9/17/01 109I7/A307003 41 RIVER TERRACE (TRIBECA POINT) - LOBBY INDOOR 90 1350 0 <LOQ 9/17/01 10917/A307004 41 RIVER TERRACE (TRIBECA POINT)-PHB INDOOR 90 1350 0.003 9/17/01 10917/A307002 400 CHAMBERS STREET (TRIBECA POINT) - LOBBY INDOOR 120 1800 0.014 19.69 9/17/01 302/002 400 CHAMBERS STREET, 9TH FLOOR INDOOR 120 1800 0.007 <19,69 9/17/01 302/003 WEST END OF WARREN STREET AMBIENT 45 675 0.007

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