DEP memo forwarding draft benchmark levels for indoor contaminants of concern developed by DHHS, EPA, and OSHA for interagency review and approval.
NYC-WTC_000164835–000164839
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
---------+----------------------------- +----------------------------- 1 II I background or E-04 (30 | maintain recommended (i.e., | yr)/HQ =1 to E-04 (1 yr)/HQ | diligent wet/HEPA) cleaning | = 10 I methods - consider additional monitoring | ---------+----------------------------- +----------------------------- 1 III I < background or E-04 (30 | no further action I yr)/HQ = 1
Asbestos (settled dust)
---------+----------------------------- +------------------- -I Tier | Screening Value | Action I -I I I >10, gw fibers/cm2 | aggressive cleaning I (TEM AHERA counting rules) | (professional?) - if I readings persist take additional action to reduce | exposure I ------------------- +---------------------- 1 II I 1 (or background) - | maintain recommended (i.e., | 10,000 f/cm2 I diligent wet/HEPA) cleaning | methods - consider I additional monitoring I III I < background or 1,000 f/cm2 | no further action | (whichever is greater) | I I —+-----------------------------
Asbestos (indoor air)
.+------- -I Tier | Screening Value I Action I -I I I > .028 f/cc (E-04 X 1 I aggressive cleaning I yr) I (professional?) - if | PCM/PCME measurement ] readings persist take I additional action to reduce | exposure |
NYC-WTC_000164836
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
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.
5 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.970
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164830
DEP internal memo circulating draft EPA screening level standards for asbestos, fiberglass, and silica in indoor air and settled dust for agency comment.
3 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.948
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.947
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139416
Multi-agency discussion of benchmark reference levels for probable indoor contaminants of concern, including asbestos in air.
8 shared non-person entities · 1 shared topics · similarity 0.985
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163606
Strawman benchmarks for probable indoor contaminants of concern related to WTC assessment.
7 shared non-person entities · 1 shared topics · similarity 0.984
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154652
Internal tracking document for managing reports, comments, and actions related to environmental compliance cases.
6 shared non-person entities · 1 shared topics · similarity 0.955
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000125845
Draft fact sheet from DOH and DEP addressing tenant concerns regarding asbestos fibers at 105 Duane Street.
6 shared non-person entities · 1 shared topics · similarity 0.952
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162253
EPA proposal for asbestos clearance criteria applied to WTC indoor cleanup operations.
3 shared non-person entities · 1 shared topics · similarity 0.950
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000149432
DEP asbestos project notification form and inspection report dated December 12, 2002.
8 shared non-person entities · similarity 0.950
machine-extracted · confidence unavailable · Check page ↗3 shared non-person entities · 1 shared topics · similarity 0.948
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162222
EPA staff distributed an environmental laboratory report to federal and city agencies on May 15, 2002.
6 shared non-person entities · 1 shared topics · similarity 0.948
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000149936
Joint OSHA and Bechtel crane inspection report analyzing safety conditions at the World Trade Center site.
5 shared non-person entities · similarity 0.947
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
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NYC-WTC_000139416
Multi-agency discussion of benchmark reference levels for probable indoor contaminants of concern, including asbestos in air.
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NYC-WTC_000163606
Strawman benchmarks for probable indoor contaminants of concern related to WTC assessment.
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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.
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NYC-WTC_000154652
Internal tracking document for managing reports, comments, and actions related to environmental compliance cases.
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NYC-WTC_000125845
Draft fact sheet from DOH and DEP addressing tenant concerns regarding asbestos fibers at 105 Duane Street.
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