Legal hold notice for WTC documents, undated

. Pilot Cleaning Sample Log X = Collected A = Analyzed C = Cleared E = Exceeded N = Not Evaluated Compound Unit Sample ID Cleaning Type MMVF PAHs (Pre- or Post-cleaning) Asbestos Dioxin: Fibrous Glass Lead - Silica Wipe Air Wipe Wipe Air Wipe Air Microvac Wipe Air Wipe Air Wipe Air Microvac 4A 9094-M-4A-023 Post-recleaning x 4A 9094-M-4A-024 Post-recleaning X 4A 9094-M-4A-025 Post-recleaning X 4A 9094-M-4A-026 Post-recleaning 4A 9094-M-4A-027 Post-recleaning Post-cleaning N 4A 9094-A-4A-008 Post-cleaning Z 4A 9094-A-4A-009 N 4A 9094-A-4A-010 Post-cleaning 4A 9094-A-4A-011 Post-cleaning 4A 9094-A-4A-012 Post-cleaning 4A 9094-A-4A-013 Post-cleaning 4A 9094-A-4A-014 Post-cleaning 9094-M-4A-020 Post-cleaning A 4A 4A 9094-M-4A-021 Post-cleaning A 4A 9094-M-4A-022 Post-cleaning A 4A 9094-W-4A-015 Post-cleaning A A 4A 9094-W-4A-016 Post-cleaning A A 9094-W-4A-017 Post-cleaning A 4A A 4A 9094-W-4A-018 Post-cleaning 4A 9094-W-4A-019 Post-cleaning A 4B 9094-W-4B-001 Pre-cleaning A 4B 9094-W-4B-002 Pre-cleaning A A E A 4B 9094-W-4B-003 Pre-cleaning A 9094-W-4B-004 Pre-cleaning A A 4B A 48 9094-W-4B-005 Pre-cleaning A Post-recleaning X 4B 9094-A-4B-018 X 4B 9094-A-4B-019 Post-recleaning 4B 9094-A-4B-006 Post-cleaning 4B 9094-A-4B-007 Post-cleaning 4B 9094-A-4B-008 Post-cleaning 4B 9094-A-4B-009 Post-cleaning 4B 9094-A-4B-010 Post-cleaning 4B 9094-A-4B-011 Post-cleaning 4B 9094-A-4B-012 Post-cleaning 9094-W-4B-013 Post-cleaning A 4B 4B 9094-W-4B-014 Post-cleaning A 4B 9094-W-4B-015 Post-cleaning A A 4B 9094-W-4B-016 Post-cleaning A A 48 9094-W-4B-017 Post-cleaning A 4B 9094-A-4B-018 4B 9094-A-4B-019 Pre-cleaning A 4C 9094-M-4C-005 4C 9094-M-4C-006 Pre-cleaning A 4C 9094-M-4C-007 Pre-cleaning A 4C 9094-M-4C-008 Pre-cleaning A 4C 9094-W-4C-001 Pre-cleaning A A 4C 9094-W-4C-002 Pre-cleaning A > 4C 9094-W-4C-003 Pre-cleaning A A A 4C 9094-W-4C-004 Pre-cleaning 4C 9094-A-4C-026 Post-recleaning NYC 9/11 Public Portal Document

Post-cleaning C 4C 9094-A-4C-009 4C 9094-A-4C-010 Post-cleaning 4C 9094-A-4C-011 Post-cleaning X 4C 9094-A-4C-012 Post-cleaning X 4C 9094-A-4C-013 Post-cleaning 4C 9094-A-4C-015 Post-cleaning Post-cleaning NYC-WTC 000148613

4C 9094-A-4C-016 4C 9094-A-4C-017 Post-cleaning 4C 9094-A-4C-018 Post-cleaning 4C 9094-M-4C-023 Post-cleaning A ×x 4C 9094-M-4C-024 Post-cleaning A 4C 9094-M-4C-025 Post-cleaning A 4C 9094-W-4C-018 Post-cleaning A Post-cleaning X 4C 9094-W-4C-019 A X 4C 9094-W-4C-020 Post-cleaning A x 4C 9094-W-4C-021 Post-cleaning A X Post-cleaning x 4C 9094-W-4C-022 A F 4D 9094-M-4D-006 Pre-cleaning A