Wipe sample results: pre- and post-cleaning comparison

NYC 9/11 Public Portal Document

1 ahie 12t MrvlVt Wipe ^sampies - Before Cleaning and Post 1st Cleaning Results Internal Review Draft Unit Number Sample Id Cleaning Type Sign Result Units Unit Number Sample_ld _______ Cleaning Type_____ Sign Result Units Difference 2A 9094-W-2A-002 Before cleaning 57.23 mmvf S/c 2A 9094-W-2A-Q17 Post 1st cleaning - Test IB 57.23 mmvf S/c 2A 9Q94-W-2A-003 Before cleaning 629.55 mmvf S/c 2A 9094-W-2A-018 Post 1st cleaning - Test IB 114,46 mmvf S/c 2A 9O94-W-2A-O04 Before cleaning 2117.56 mmvf S/c 2A 9094-W-2A-O19 Post 1 st cleaning • Test 1B 171.69 mmvf S/c 2A 9094’W.2A.-005 Before cleaning 343.39 ,mmvf S/c 2A 9094-W-2A-020 Post 1 st cleaning - Test 1B 57.25 mmvf_S/’c 2A 9094-W-2A-021 Post 1st cleaning - Test 1B 114.46 mmvf S/c Average 786.93 Average 103.01 684

2B ,9Q94-W-2B-002 Before cleaning 629.55 mmvf S/c 2B 9Q94-W-2B-015 Post 1 st cleaning - Test 3A 57.23 immvf_S/c 2B 9094-W-2B-003 Before cleaning 13163.22 mmvf S/c 2B 9O94-W-2B-01G Post 1st cleaning - Test 3A 114.45 mmvf S/c 2B 9O94-W-2B-004 Before cleaning 400.62 mmvf S/c 2B 9094-W-2B-017 Post 1 st cleaning - Test 3A 228.93 mmvf S/c

-II 9094-W-2B-018 9094-W-2B-019 Post 1st cleaning - Test 3A Post 1st cleaning - T^t 3A 171 69 mmvf S'c 171.69 mmvf S/c Average 4731.13 Average 148.80 4.582

3A i9094-W-3A-002 Before cleaning 57.23 mmvf S/c 3A 9094-W-3A-017 Post 1st cleaning - Test 2B 22.891 mmvf S/c 3A i9094-W-3A-003 Before cleaning 801 24 mmvf S/c 3.A 22.S51 mmvf^ 9094-W-3A’018 Post 1st cleaning - Test 2B 3A ■ 9034-W-3A-004 Before cleaning 686.78 mmvf S/c 9d94-W-3A-019 Post 1st cleaning • rest2B 22.89 mmvf S/c 3A 9094-W-3A-020 Post 1 st cleaning - Test 2B 22.89 mmvf S/c 9094-W-3A-021’ PosTTsfcleaningTTTesr^ 22.89 mmvf S/c Average 515.08 Average 22.89 492

3B 9094-W-3B-002 Before cleaning 744.01 mmvf S/c 3B 9094-W-3B-018 Post 1 st cleaning - Scope A 57.23 mmvf S/c 3B 9094-W-3B-003 Before cleaning 2289.26_ mmvf S/c 3B 9094-W-3B-019 Post 1st cleaning - Scope A 57 23 rnrrivf S^c 3B 9094-W-3B-004 Before cleaning 744 01 mmvf S/c 9094-W-3B-020 Post 1st cleaning - Scope A 57.23 mmvf S/c 3B 9094-W-3B-021 Post 1 st cleaning - Scope A 57.23 mmvf_S/c i 3B iyr:y4-w-3B-022 Post 1st cleaning - Scope A 57.23 mmvf S/c Average__ 1259.09 Average 57.23 1,202

9094-W-3C-0O2 Before cleaning 343 39 mmvf S/c 3C 9094-W-3C-016 Post 1st cleanjng - Test 1A 57.23 mmvf S/c 3C 9Q94-W-3C-003 Before cleaning 744.01 mmvf S/c 3C |9094-W-3C-017 Post 1st cleaning - Test 1A 171.69 mmvf S/c 3C 9Q94-W-3C-0Q4 Before cleaning 343.39 mmvf S/c 3C 9094-W-3C-018 Post 1st cleaning - Test 1A 400,62 mmvf S/c 3C 9094-V;-3C-019 Post 1 st cleaning - Test 1A 114 46 mmvf S/c 9094-W-3C-020 Post 1st cleaning - Test 1A 114.46 mmvf S/c Average___ 476 QI Average 171.69 305

3D 9094-W-3D-002 Before cleaning 228.93- mmvf_ S/c 3D 9094-W-3D-015 Post 1st cleaning - Test 1A 22.89 mmvf S/c ’3D 9094^30-003 Before cleaning 572 31 mmvf S/c 3D 9094-W-3D-016 ^Postlstcleaninq-TesM^ 22.89 mmvf S/c 3D 9O94-W-3D-6o4 Before cleaning 125^09' mmvf S/c 9094-W-3D-017 Post 1st cleaning - Test 1A 22.89 mmvf S/c 3D 9094-W-3D-005 Before cleaning 343 39 mmvf S/c 3D 9094-W-3D-018 . Post 1st cleaning - Test 1A 22.89 mmvf S/c 35” 9094-W-3D-019 Post 1st cleaning - Test 1A 22,89 mmvf_S/c Average 600.93 ^yera^e 22.89 578

Q 4A 9094-W-4A-0O2 Before cleaning 4U0.62 mmvf S/c 4A yUy4-W-4A-015 Post lsi cleaning - Test 2A 22.89 mmvf_5/c 4A 9O94-W-4A-003 Before cleaning 629 55 mmvf S/c 4A ' yuy4-W-4A-016 ^Postistclean2Tg-2est_2^ 22 89 mmvf_S/c I .±5 9094-W-4A-0O4 Before cleaning 171 69 mmvf S/c 4A ' 9094-W-4A-017 Post 1st cleaning - Test 2A 22 89 mmvf_S/C 4A Before cleaning 4A j9094-W-4A-Ul8 Post 1st clean ng - lest 2A 22 89 mmvf S/c 4A j9094-W-4A-019 Post 1st clean ng - Test 2A 22 89 mmvf S/c S Q ____ Average____ 400.62 Average 22.89 378 O O I o

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