NYC-WTC_000187482

NYC 9/11 Public Portal Document

U.S. Environmental Protection Agency Air / Bulk / Wipe Sampling Situation Report Friday, September21,2001 (12:00pin)

Fixed Ambient Air Sampling Locations (Asbestos)

• NYC/ER O Round 10 (Sept 19,2am -10 am) - One sample marginally high with PCM analysis (Location J - West St / Wanen St.). Confirmed non-detect with TEM. O Round ?? (not listed) (Sept 19 - Sept20,5pm - 2am) - One marginally high with PCM analysis (Location G - Liberty St / South End Ave). Confirmed non-detect with TEM. o Round ?? (Sept 20,2am - 10am) - One PCM analysis at criteria of 0.01 F/cc (Location F - West St / Vessey St.). Confirmed non-deiect with TEM

New Jersey o Sept 18 (addition samples) and Sept 19 - Ail less than Detectable Levels

NYC Bulk Samples

Sept 19 - 12 out of 16 with results 1 - 2.1 %, with most samples collected in die general arca(s) of Stuyvesant HS and Battery Park, Sept 20 - All samples were Non-Detects with most samples collected within 2-3 blocks of the WTC

Landfill Air Sampling locations (Asbestos)

Sept 19/Sept 20 O 3 Rounds of data o 25 of 27 were reported as less than detectable levels o All samples below OSHA PEL of 0.1 fibers/cc

Particulate Monitoring Sept 18 - 20 o Using 3 X background for implementation of Dust Suppression Measures o All data collected, with exception of screening area, was well below the 3x Number.

Wipe Samples (metals) Analysis • 6 samples collected at Jacob Javits Center (no EPA criteria Available) • Lead Results are well below the HUD criteria (50 ug/ft^) • While no specific standards arc available, the most toxic other metals (i.e. As, Be, Cd, Cr, etc.) were either Non Detects or trace.

Direct Reading Instruments Nothing of significance identified All data considered suspect due to moisture on that day TOT«. P.02

CITY_21MC100_002417153

NYC-WTC_000187482