NYC 9/11 Public Portal Document
Unit 4C Results
9094-W-4C-021 Wipe <2366.41 S/cm2 Chrysotne
9094-W-4C-022 Wipe < 2366.41 S/cm2 Chrysotile
Dioxin TEQ EMPC (ND=1/2)
Before cleaning
Sample ID Matrix Detected ResuK Comment
9094-W-4C-002 Wipe 0.57 ng/m2
9094-W-4C-003 Wipe 1.36 ng/m2
9094-W-4C-004 Wipe 0.975 ng/m2
Post 1st cleaning - Test 1A
Sample ID Matrix Detected Result Comment
9094-W-4C-019 Wipe 0.507 ng/m2
9094-W-4C-020 Wipe 0.606 ng/m2
9094-W-4C-021 Wipe 0.511 ng/m2
9094-W-4C-022 Wipe 0.512 ng/m2
Gypsum
Post 1st cleaning - Test 1A
Sample ID Matrix Detected Result Comment
9094-A-4C-014 Air ND < 0.016 mg/m3
9094-A-4C-015 Air ND < 0.016 mg/m3
Lead
Before cleaning
Sample ID Matrix Detected Result Comment
9094-M-4C-005 Microvac 76.1 ug/ft2
9094-M-4C-006 Microvac 83.7 ug/ft2
9094-M-4C-007 Microvac 69.8 ug/^-
9094-M-4C-008 Microvac 70.8 ugZft2
9094-W-4C-002 Wipe ND < 4.65 ug/fl2
9094-W-4C-003 Wipe 181 ug/ft2
9094-W-4C-004 Wipe 77.5 ug/ft2
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NYC-WTC_000145273
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