DEP discussion of drafting water use exemption notice for contractors performing necessary WTC hazard remediation and facade cleanup work.
NYC-WTC_000160788–000160797Folder label: “E-mails R. Avaltroni 2002”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
f
I I additional action to reduce | I exposure I -------+— ------ 1 II 1 background or E-04 (30 I maintain recommended (i.e., | I yr)/HQ =1 to E-04 (1 yr)/HQ 1 diligent weVHEPA) cleaning | 1 = 10 I methods - consider 1 1_+— I additional monitoring I ------ +------------------- _| III I < background or E-04 (30 | no further action I I yr)/HQ = 1 I I _+----------- ------ 1
Asbestos (settled dust)
------ +-------------------------- +— •I Tier 1 Screening Value | Action I ------ +-------------------------- +— •I I > 10,000 fibers/cm2 | aggressive cleaning | (TEM AHERA counting rules) | (professional?) - if | I readings persist take | I additional action to reduce | I exposure ------ +----- •I II 1,000 (or background) - 1 maintain recommended (i.e., | 10,000 f/cm2 I diligent wet/HEPA) cleaning | I methods - consider I I additional monitoring I ------ +. -------+------------------- _| Ill I < background or 1,iWK f/cm21 no further action I (whichever is greater) 1 I !• -+----------------------------- +_ -I
Asbestos (indoor air)
------ +• ---------------------- +. •I Tier | Screening Value Action I ------ +. -------------------------- +-------------------------- •I 1 1 > .028 f/cc (E-04 X1 I aggressive cleaning 1 I yr) 1 (professional?) - if |
NYC-WTC_000160792
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_000160806
Forwarded EPA draft guidance on screening levels for asbestos, fiberglass, and silica in indoor air and settled dust for departmental review.
6 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162015
Forwarded daily environmental summaries from EPA staff to city officials regarding early World Trade Center recovery operations.
6 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160683
Transmission of WTC-related Q and A document to interagency task force with EPA Regional contact information.
7 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.977
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000159817
Circulation of draft environmental screening benchmarks for asbestos, fiberglass, and silica in indoor air and settled dust for expert review.
5 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.977
machine-extracted · confidence unavailable · Check page ↗7 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.977
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160740
Correspondence between EPA and DEP officials discussing scheduling meetings with building owners to address exterior cleanup issues in late March 2002.
7 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160798
Correspondence regarding finalizing release forms and letters required before DEP meetings with building owners to commence exterior work in early April 2002.
6 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.975
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000141536
Request outlining DEP procurement and EPA supervision of cleaning and sampling contracts for Lower Manhattan residents.
7 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000108786
A document listing seven licensed contractors authorized to perform clean-up and abatement work at the World Trade Center site.
7 shared non-person entities · 1 shared topics · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000141555
Document requesting FEMA mission assignment for indoor air testing and cleaning programs in Lower Manhattan.
6 shared non-person entities · 1 shared topics · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · similarity 0.975
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000139416
Multi-agency discussion of benchmark reference levels for probable indoor contaminants of concern, including asbestos in air.
Similarity score 0.990 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164835
DEP memo forwarding draft benchmark levels for indoor contaminants of concern developed by DHHS, EPA, and OSHA for interagency review and approval.
Similarity score 0.987 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164877
Proposal detailing a survey to assess seven preliminary contaminants in 100 buildings within a four-block radius of the World Trade Center site.
Similarity score 0.977 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163606
Strawman benchmarks for probable indoor contaminants of concern related to WTC assessment.
Similarity score 0.974 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164835
DEP memo forwarding draft benchmark levels for indoor contaminants of concern developed by DHHS, EPA, and OSHA for interagency review and approval.
Similarity score 0.968 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163606
Strawman benchmarks for probable indoor contaminants of concern related to WTC assessment.
Similarity score 0.965 (not a probability)
machine-extracted · confidence unavailable · Check page ↗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_000160529
Notice instructing staff to preserve original World Trade Center documents as potential legal evidence and not dispose of them.
Filed in the same folder
NYC-WTC_000160530
DEP memo documenting inconsistent dust control from WTC debris transport trucks affecting school reopening plans.
Filed in the same folder
NYC-WTC_000160536
DEP memo discussing WTC recovery contractor operations, fuel requirements, infrastructure repairs, and school proximity.
Filed in the same folder
NYC-WTC_000160537
Forwarded draft press release from NYC Department of Health regarding WTC environmental and health guidance.
Filed in the same folder
Distribution of the final version of a Department of Health press release concerning WTC indoor air quality.
Filed in the same folder