NYC-WTC_000162746
Duplicate transmission of revised HVAC cleaning procedure documents to DEP and EPA staff.
5 shared non-person entities · Same agency, volume and box · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗EPA submits detailed technical questions and comments on proposed HVAC cleaning procedures for WTC buildings.
NYC-WTC_000162731–000162735Folder label: “E-mails 2003 M. Gilsenan”

OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Procedure 12/13. SSC recommends removing and cleaning the supply air grills, fire dampers and branch ducts before cleaning the main supply duct as cleaning of these areas after cleaning the main riser may lead to recontamination. Again we should work from the furthest point toward the vacuum collection system. This procedure will require two accesses to the apartments. The current procedures require 3 accesses to the apartments. As poly is removed from any exhaust diffuser, the velocity should lift any light debris that may have dislodged during the riser cleaning. Regardless of which procedure you choose it will ultimately be field modified.
NYC-WTC_000162733
OCR can misread numbers and units. Confirm readings against the page image before using them.
Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000162746
Duplicate transmission of revised HVAC cleaning procedure documents to DEP and EPA staff.
5 shared non-person entities · Same agency, volume and box · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · Same agency, volume and box · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162721
Transmission of revised cleaning procedure documents for exhaust and ventilation systems at the World Trade Center site.
5 shared non-person entities · Same agency, volume and box · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162698
DEP requests exhaust system cleanup procedures and confirms access agreements are in place for cleaning work scheduled January 2, 2003.
4 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.942
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160257
Extensive EPA-distributed memo coordinating federal, state and local agency response to World Trade Center environmental issues.
4 shared non-person entities · 1 shared topics · similarity 0.946
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · similarity 0.946
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · similarity 0.945
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · similarity 0.944
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140504
Contract introduction outlining EPA and DEP assistance programs for residential air sampling and cleaning after the World Trade Center collapse.
4 shared non-person entities · 1 shared topics · similarity 0.944
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140517
Departmental comments and requests for clarification regarding cleaning triggers, clearance levels, and supervision requirements.
4 shared non-person entities · 1 shared topics · similarity 0.944
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155880
Document outlining requirements for a consultant to provide full-time asbestos air monitoring during the interior cleaning of 125 Cedar.
4 shared non-person entities · 1 shared topics · similarity 0.943
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000165014
Memo from EPA to multiple NYC, state, and federal agencies coordinating WTC environmental response activities and information sharing.
4 shared non-person entities · 1 shared topics · similarity 0.943
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000162721
Transmission of revised cleaning procedure documents for exhaust and ventilation systems at the World Trade Center site.
Similarity score 0.949 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140028
Detailed procedures for isolating ventilation zones, sealing exhaust grilles, cleaning roof-mounted components, and managing contaminated waste.
Similarity score 0.947 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000135765
City receiving report acknowledging delivery of HVAC consulting services for WTC from TAMS Consultants Inc.
Similarity score 0.946 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162721
Transmission of revised cleaning procedure documents for exhaust and ventilation systems at the World Trade Center site.
Similarity score 0.945 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000135765
City receiving report acknowledging delivery of HVAC consulting services for WTC from TAMS Consultants Inc.
Similarity score 0.944 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162698
DEP requests exhaust system cleanup procedures and confirms access agreements are in place for cleaning work scheduled January 2, 2003.
Similarity score 0.944 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Machine-extracted building matches; verify each source. Buildings, never households.
Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
NYC-WTC_000162712
Official notice instructing staff to preserve scanned World Trade Center documents as potential evidence in future legal actions.
Filed in the same folder
NYC-WTC_000162713
Official notice instructing staff not to dispose of original World Trade Center documents as they are required for legal proceedings.
Filed in the same folder
NYC-WTC_000162721
Transmission of revised cleaning procedure documents for exhaust and ventilation systems at the World Trade Center site.
Filed in the same folder
NYC-WTC_000162729
DEP submits OSHA compliance justification document for review regarding worker safety in WTC cleanup procedures.
Filed in the same folder
Filed in the same folder