NYC 9/11 Public Portal Document
Cedar Street Staircase Results
Asbestos
Post 1st cleaning - Test 4A, 4B
Sample ID Matrix Detected Result Comment
9094-A-CS3-001 Air 0.003 f/cc
9094-A-CS5-001 Air 0.001 f/cc
9094-A-CS3-001 Air 0.001 S>0.5u/CC Chrysotile
9094-A-CS5-001 Air 0.0015 S>0.5u/CC Chrysotile
9094-A-CS3-001 Air ND < 0.0005 S>5u/cc
9094-A-CS5-001 Air 0.0005 S>5u/cc Chrysotile
Gypsum
Post 1st cleaning - Test 4A, 4B
Sample ID Matrix Detected Result Comment
9094-A-CS3-003 Air ND < 0.009 mg/m3
9094-A-CS5-003 Air ND < 0.009 mg/m3
Lead
Post 1st cleaning - Test 4A, 4B
Sample ID Matrix Detected Result Comment
9094-A-CS3-002 Air ND < 0.052 ug/m3
9094-A-CS5-002 Air ND < 0.051 ug/m3
Mineral: alpha-Quartz
Post 1st cleaning - Test 4A, 4B
Sample ID Matrix Detected Result Comment
9094-A-CS3-003 Air ND < 0.004 mg/m3
9094-A-CS5-003 Air ND < 0.004 mg/m3
Mineral: Calcite
Post 1st cleaning - Test 4A, 4B
Sample ID Matrix Detected Result Comment
9094-A-CS3-003 Air ND < 0.017 mg/m3
9094-A-CS5-003 Air ND < 0.017 mg/m3
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NYC-WTC_000145304
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