Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.
NYC-WTC_000145695–000145868Folder label: “NO INFO”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Unit 5A - This unit is on the fifth floor. It is a 1,404 sq. ft. loft facing Cedar Street with one bedroom. The unit has hardwood floors and no carpet. One window had been blown in. The dwelling presented minimal accumulation of dust, except for baseboard-heating units. Numerous items were cleaned, then bagged.
Cleaning Method - This unit was cleaned using Test 3B: an Industrial HEPA-filtered vacuum. An AFD was used during cleaning. In addition, all horizontal surfaces were wet wiped.
Cleaning Results - Tins unit met the clearance criteria listed in Table 1.0 for each compound after being cleaned twice.
Asbestos Before Cleaning Samples - Seven micro vacuum and four wipe samples were collected for analysis of asbestos. These samples indicate that asbestos was present in the unit prior to cleaning. Chrysotile was detected in six of the seven micro vacuum samples and all four of the wipe samples; however, chrysotile was present below the detection limit in two of the four wipe samples.
Post Cleaning - Three air samples, seven micro vacuum samples, and five wipe samples were collected. The three air samples were analyzed using PCM and PCMe. The PCM results were all below the secondary numeric criterion of 0.01 f/cc. All three PCMe analyses were at or below the primary criterion of0.0009 S/cc.
The results for the seven micro vacuum samples indicate that asbestos results varied and were present at levels higher and lower than before cleaning.
The results for the five wipe samples showed that asbestos was present in one sample; however, all samples were below the detection limit. The results indicate that the cleaning techniques used were effective in reducing the asbestos concentrations observed prior to cleaning.
Dioxin Before Cleaning Samples - Three wipe samples were collected and analyzed for dioxin. The results indicate that dioxin was present; however, the TEQ concentration for each sample was below the primary clearance criterion of 4 ng/m^.
Post Cleaning Samples - Four wipe samples were collected and analyzed for dioxin. The results indicate that the TEQ concentration for each sample was below the primary clearance criterion of 4 ng/m^.
Gypsum Before Cleaning Samples - Pre-cleaning air samples were not collected.
Post P‘ Cleaning Samples - Two air samples were collected after the first cleaning. Gypsum was not detected in any sample.
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NYC-WTC_000145769
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NYC-WTC_000145027
Notice from NYC Law Department instructing staff to preserve World Trade Center documents for potential legal actions.
28 shared non-person entities · Same agency, volume and box · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000145869
Interim final report from EPA Region 2 detailing a background study of environmental conditions at the World Trade Center site.
28 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155286
Formal letter criticizing the EPA and DEP for alleged failures in cleaning asbestos and silica from 114 Liberty Street.
13 shared non-person entities · 1 shared topics · similarity 0.964
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155174
Chain of custody documentation for cleanup and monitoring samples at 114 Liberty distributed among project team members.
12 shared non-person entities · similarity 0.961
machine-extracted · confidence unavailable · Check page ↗12 shared non-person entities · similarity 0.961
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000138897
Internal DEP coordination regarding comments on 114 Liberty procedures and preparation of a response.
12 shared non-person entities · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000102521
EPA letter confirming that primary and secondary clearance levels for asbestos and other contaminants were met at 114 Liberty Street.
9 shared non-person entities · 1 shared topics · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151524
EPA Region II letter confirming that primary and secondary clearance levels for asbestos and other contaminants were met at 114 Liberty Street.
10 shared non-person entities · 1 shared topics · similarity 0.959
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154940
EPA confirms that primary and secondary clearance levels for contaminants at 114 Liberty Street have been met.
10 shared non-person entities · 1 shared topics · similarity 0.958
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154998
EPA confirms that primary and secondary clearance levels for contaminants at 114 Liberty Street have been met.
10 shared non-person entities · 1 shared topics · similarity 0.956
machine-extracted · confidence unavailable · Check page ↗12 shared non-person entities · similarity 0.956
machine-extracted · confidence unavailable · Check page ↗11 shared non-person entities · similarity 0.954
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Directory of organizations providing financial aid, job placement, and space assistance to businesses affected by the disaster.
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Notice from NYC Law Department instructing staff to preserve World Trade Center documents for potential legal actions.
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Policy document outlining NYPD access requirements for building owners and contractors at the site in October 2001.
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