NYC-WTC_000233975

NYC 9/11 Public Portal Document

I TRC Field Sample No. | Sample No. Sampling Location I Coleclion Start Dale | Sample Volume (nf) | Analyte | Analytical Method | Lab | Lab Sample Receipt Dale Respirable Silica Concentration (ug/mS) Exceeds Target Exceeds EPA Air Quality Site Specilic Comments Levels Trigger Levels SILICA-ST1 -9/28/05 646518712-6661 Southwest Area (street-level) 9/28/2005

s EiSSt Silica NIOSH 7500 XRD EMSLI

t- No No

i II Southeast Area (street-level)

5 SILICA-ST2 -9/28/05 040518712-0002 SILiCA-S’T4-9’/2’8/0’5’ 040518712-0003 Northwest Area (street-level) SILICA-ST5-9/28/05 040518712-0004 Firehouse #10 (root level) SILICA-ST6-9/28/05 040518712-0005 Southwest Area (roof level) No No

F SiL’lCA-’sf7-9/2’8’/65....... ’64’65i8’7i’2’-’6606’ Southeast Area (roof level) See 9/28/05 Exceedance Report. SiLICA-St8-9/28/65 640518712-0007

S Northeast Area (root level) SILICA-ST9-9/28/05 040518712-0008 Northwest Area (root level) BILiCA-Sti 6-9/28/6’5 5640518712-0069’’’ ’ North Side Sidewalk Brjdge' SILiCA-STi 00-9/2 8/05 Station io Field Duplicate

J;. No SILICA-STI -9/29/05 SILICA-ST2 -9/29/05 S|L’|CA-ST4-9/2’9’/’o5 SIS Southwest Area (street-level) Southeast Area (street-level) 04651886616663 ;:; NorthA-est Area jstreetdel/eh .ligglS. ■s <2 ..2. NO

SILIC/\-ST5-9/29/05 040518800-0004 Firehouse #10 (root level) No SILICA-STI 0-9/29/05 , 04,051,88,00,-0,00,5 ...North Side ,Side,w,al,k„Br,idge,,, No Sl’LiCA-Sti-9/36/6’5 ” 040518886-0001 Southwest Area (street-level) SILiCA-ST2-9/30/05 046518886-0002 Southeast Area (street-level) 2.98 10/3/2005 No

I SILICA-ST4-9/30/05 040518886-0004 Northwest Area (street-level) 10/3/2005 No SILICA-ST5-9/30/05 SiLlCA-STl0-9/30/05 040518886-0005 Firehouse #10 (root level) North Side Sidewalk Bridge US SILICA-ST1 -10/1/05 === Southwest Area (street-level) SILICA-ST2-10/1/05 Southeast Area (street-level) <2 No SILiCA-S’T4-10/i/0’5’ 646518886-60l63|Northwes4Area(stre€43vel); SILiCA-ST5-10/1/05 040518886-0011 Firehouse #10 (root level) No

T SILICA-ST10-10/1/05 040518886-0009 North Side Sidewalk Bridge SiL’lCA-’st’l’-i6/2’/65 ”.......646518886^61’3 ”■ Southwest Area (str’ee’t’-l’eve’lj’ SiLIC/\-ST2-10/2/05 :040518886-06i4....... Southeast ‘ ’ Area (street-level) <2 SILICA-ST4-10/2/05 040518886-0016 Northwest Area (street-level) 10/3/2005

lilll m; 640518886-0017

s; SILICA-ST5-10/2/05 Firehouse #10 (root level) ;siLicA-sfi’6-i6^765 ” 640’51’88’86-0’01’5 North Side Sidewalk Bridge <2 SILICA-STI -10/3/05 040518939-0001 Southwest Area (street-level) 2 SILICA-ST2-10/3/05 040518939-0002 Southeast Area (street-level) <2

3 SlL’lCA-Sf4-l6/’3’/65 6’4’651893’9-6603 ■Northwest Area (street-level) <2 No

IS I ElliiS t siLICA-STSd 0/3/05 640518939^0004 Firehouse #10 (root level) <2 SILICA-STI 0-10/3/05 040518939-0005 North Side Sidewalk Bridge, <2 siLicA-sfi -i 6/4/65 646519012-0001 ■ ■ ■ ’Southwest Area’(street-leyei)’ <2 SILiCA-ST2-10/4/05 SILICA-ST4-10/4/05 SILICA-ST5-10/4/05 040519012-0002 040519012-0003 040519012-0004 Southeast Area (street-level) Northwest Area (street-level) Firehouse #10 (root level) 10/4/2005 ■? Silica : NIOSH 7500 XRD : EMSL : <2

<2 SILICA-Sfl6-i6/4/65 6’4’05’1901’2-0005 North ’Side Sidewalk Bridge <2 Hio-- SILICA-ST1 -10/5/05 040519115-0001 Southwest Area (street-level) <2 ^o SILICA-ST2-10/5/05 640519115-0002 Southeast Area (street-level) No SILiCA-Sf4’-i0/5/65"” SILICA-ST5-10/5/05 SILICA-STI 0-10/5/05 6465’19115-0003 040519115-0004 0405191 15-0005 Northwest Area (street-level) Firehouse #10 (root level) North Side Sidewalk Bridge ■g' <8 <2 -F" No No Reduced sample volume due to pump failure.

SILICA-ST11-10/5/05 040519115-0006 90 Trinity Place (roof level) != No No

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NYC-WTC_000233978