2 shared non-person entities · similarity 0.905
machine-extracted · confidence unavailable · Check page ↗Document / 12 pages
Wipe sample results: pre- and post-cleaning comparison
Machine-extracted title · confidence 85%Data table comparing wipe sample conductivity or contamination levels before and after the first cleaning for Unit 2A.
NYC-WTC_000186173–000186184Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
l ahle 12. Lead Microvacuum Samples - Before Cleaning and Post 1st Cleaning Results Internal Review Draft unit Number Sample Jq Cleaning Type Sign Result Units Unit Number ______ Sample_ld ______ Cleaning Type______ Sign Result Units Difference 2A 9094-M-2A-006 Before cleaning 4.03 ug/ft2 ?A 9094-M-2A-Q22 Post 1 st cleaning - Test 1P 2.32 ug/ft2 2A 9094-M-2A-007 Before cleaning 14.40 ug/ft2 2A 9094-M-2A-023 Post 1 st cleaning - Test 18 2.32 ug/ft2 2A 9094-M-2A-008 Before cleaning 3.89 ug/ft2 2A 9094-M-2A-024 Post 1 st cleaning - Test 1B 2.32 ug/ft2 2.A 9094-M-2A-009 Before cleaning 2,32 ug/ft2
Average 6.16 Average 2.32 4
2B 9094-M-2B-005 Before cleaning 2.32 ug/ft2 28 9094-M-2B-Q2Q Post 1 St Cleaning - Test 3A 2-32 ug/ft2 9094-M-2B-006 Before cleaning 4,54 ug/ft2 2B 9094-M-2B-Q21 Post 1st cleaning - Test 3A 2.32 ug/ft2 2B |9094-M-2B-007 Before cleaning 2.32 ug/ft2 2B 9094-M-2B-022 Post 1 st cleaning - Test 3A 2.32 ug/ft2 2B 9094-M-2B-023 Post 1st cleaning - Test 3A 2.32{ug.1t2
Average 3.06 Average 2132
3A |9094-M-3A-0Q6 Before cleaning 4.65 ug/ft2 3A 9094-M-3A-022 Post 1st cleaning - Test 2B 4.35 ug/ft2 !9n94-M-3A-0n7 Before cleaning 909TM-3A-023 3A 4.65 •?.A Post 1st cieaning -Tesi 2B 2.32 ug/ft2 3A 3034-M-3A-008 Before cleaning 4.65|ug/ft2 3A 9O9TM-3A-O24 Post 1st cleaning - Test 2B 4 39 ug/ft2 3A 9094-M-3A-009 Before cleaning 4.65 ug/ft2 3A 9094-M-3A-025 Post 1 st cleaning - Test 2B 2.32 ug/ft2
Average 4.65 Average 3.47 1
9094-M-3B-006 Before cleaning 4.65 ug/ft2 3B 9094-M-3B-023 Post 1 st cleaning - Scope A ug/ft2 9094-M-3B-007 Before cleaning 4 65 ug/ft2 3B 9094-M-3B-024 Post 1 st cleaning - Scope A 2.32 ug/ft2 3B 9094-M-3B-00^ Before cleaning 4.65 ug/ft2 3B 9094-M-3B-025 Pest 1st cleaning - Scope A 2 32 ug/ft2
Average 4.65 Average 2.32 2
3C 9094-L4-3C-005 Before cleaning 68 40 ug/ft2 3C 9094-M-3C-021 Post 1st cleaning - Test 1A 6 32 ijg/ft2 3C 90g4-M-3C-006 Before cleaning ___ 135.00' uqT2 3C' 9094-M-3C-022’ Post 1st cleaning - Test 1A 9 66 ug/ft2 3C 9094-M-3C-007 Before cleaning 43.30 ug/ft2 3C 9094-M-3C-023 Post 1st cleaning - Test 1A 26 90 iig/ft? 3C 9094-M-3’C-008 Before cleaning 39.40 ua/ft2 3C 9094-M-3C-024 Post 1st cleaning - Test 1A 6 47 'jg/ft2 "3^ Post 1st cleaning - Test 1A
Average 71.5.3 Average 12.34 59
r 3D 9094-M-3D-QQ5 Before cleaning 50.70 ug/ft2 3D 9094 M 3D-020 Post 1 st cleaning - Test 1A 2.32 ug/'ft2 5.71 ug/'ft2 (Yahriabon P; 2£. 9094-M-3D-0Q6 Before cleaning 65 ug/ft2 4 65 u9/ft2 3D 3D 9094-M-3D-021 9094-M-3D-022 Post 1st cleaning -Test 1A Post 1st cleaning -Test 1A 2 32 ug/'ft2 3D 9094-M-3D-O07 Before cleaning
Average 20.00 Average 3.45 17
o 9U94-M-4A-U05 Before cleaning 4 65 ug/ft2 4A 9094-M-1A-020 Post 1st cleaning - Test 2A 2 32 ug/ft2 A kJ 4A 9094-M-4A-OO6 Before cleaning 4 65 ug/ft2 4A 9094-M-4A-O21 Post 1 st cleaning - Test 2A 2 32 ug/ft2 I 4A 9094-M-4A-007 Before cleaning 4.65 ug/ft2 Ta 9094-M-4A-022 Post 1st cleaning • Test 2A 2 58 -jg/ft2
Average Average 2.41
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NYC-WTC_000186179
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NYC-WTC_000186179Source: NYC Law Department, mirrored locally
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