NYC 9/11 Public Portal Document
Unit 4C Results
Asbestos
Before cleaning
Sample ID Matrix Detected Result Comment
9094-M-4C-005 Microvac 432562 S/cm2 ChiysoUle
9094-M-4C-006 Microvac 349442 S/cm2 Chrysotile
9094-M-4C-007 Microvac 140795 S/cm2 Chrysotile
9094-M-4C-008 Microvac 252025 S/cm2 1 Amosite and 103 Chrysotile
9094-W-4C-001 Wipe ND < 2366.41 S/cm2
9094-W-4C-002 Wipe ND < 2366.41 S/cm2 Chrysotile
9094-W-4C-003 Wipe 49069.3 S/cm2 Chrysotile
9094-W-4C-004 Wipe 3165.76 S/cm2 Chrysotile
Post 1st cleaning - Test 1A
Sample ID Matrix Detected Result Comment
9094-A-4C-009 Air f/cc Not analyzed due to
overloading of particulates.
9094-A-4C-010 Air f/cc Not analyzed due to
overloading of particulates.
9094-A4C-011 Air f/cc Not analyzed due to
overloading of particulates.
9094-A-4C-009 Air 0.0038 S>0.5u/cc Chrysotile
9094-A-4C-010 Air 0.0026 S>0.5u/CC Chrysotile
9094-A-4C-011 Air 0.0026 S>0.5u/CC Chrysotile
9094-A-4C-009 Air 0.0009 S>5u/cc Chrysotile
9094-A-4C-010 Air ND < 0.0009 S>5u/cc
9094-A-4C-011 Air ND < 0.0009 S>5u/cc
9094-M-4C-023 Microvac 23347.5 S/cm2 Chrysotile
9094-M-4C-024 Microvac 23743.2 S/cm2 29 Chrysotile and 1 Actinolite
9094-M-4C-025 Microvac 126630 S/cm2 Chrysotile
9094-W-4C-018 Wipe ND < 2366.41 S/cm2
9O94-W-4C-019 Wipe ND < 2366.41 S/cm2
9094-W-4C-020 Wipe 3165.76 S/cm2 Chrysotile
Pagel of5
NYC-WTC_000145272
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