NYC-WTC_000149432
DEP asbestos project notification form and inspection report dated December 12, 2002.
254 shared non-person entities · 1 shared topics · similarity 0.985
machine-extracted · confidence unavailable · Check page ↗Document / 620 pages
NYC Law Department letter regarding EPA draft report excerpts, July
Machine-extracted title · confidence 100%Correspondence from NYC Corporation Counsel providing comments on excerpts of a draft EPA evaluation report regarding the WTC response.
NYC-WTC_000146129–000146748Folder label: “EPA OIG LAW”
Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Final Technical Report of the Public Health Investigation Page27 of56 were alkaline (pH of 8.6 and 9.~). On the pH scale of O (acidic) to 14 (alkaline or basic), these values are slightly alkaline. Mineral analysis of these two settled surface dust samples estimate levels of calcite (150/oJ, 190/oJ) and portlandlte (60/oJ, 30/oJ) were present, respectively. These crystalline minerals along with other components of concrete would have contributed to the measured alkalinity.
CAir
The settled surface dust results discussed previously Indicate the materials present In each area sampled. Fibers and small particles within the dust may become airborne during dally activity or during periods of high activity such as cleaning. Therefore, the settled surface dust sample results are an Indicator for areas with a potential for airborne contaminants. Air sampling was conducted to determine the actual levels of fibers, dust, and crystalline minerals In the air at the time of settled surface dust sampling. Where feasible, these results are correlated to the settled surface dust results.
l. Fibers In Air
Samples for airborne fibers were first analyzed by phase contrast microscopy (PCM) to count all fibers present according to the National Institute for Occupational Safety and Health (NIOSH) Method 7400 counting rules. Phase contrast microscopy Identifies fibers based on size and shape, but not the specific type of fiber. Therefore, the fibers seen by PCM Include asbestos fibers as well as other fibers, such as textiles, fiberglass, and cellulose that might be present. Any sample with airborne fibers above the highest PCM levels found In the comparison locations was re- analyzed by transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The TEM methodology can distinguish what types of fibers are In a sample, particularly asbestos fibers. The SEM method Identifies SVF. Some fibers present In the settled dust of the area may become suspended In the air and be present In the air sample.
a. Indoor Air
Aber levels In air are expressed as the number of fibers In each cubic centimeter (cc) of air or fibers per cc (f/cc). Low levels of fibers were found In the comparison areas above 59th Street homes, where fiber levels ranged from less than 0.001 flee ( <0.001 f/cc) to 0.003 f/cc. Because no asbestos was detected In the settled surface dust of the comparison areas above 59th Street, these fibers are not likely to have been asbestos. SEM analysis showed they were not SVF. Figure 7 shows all airborne fiber levels determined by PCM In the lower Manhattan area with respect to the fiber levels found In the comparison areas above 59th Street. These data represent all fibers found according to the analytical method used (NIOSH 7400) and are not specific to asbestos or SVF.
The majority of the lower Manhattan air samples from Indoor areas without asbestos In the dust were within the range of fibers found In the comparison areas above 59th Street ( <0.001 to
http://www.atsdr.cdc.gov/asbestos/lowermanhattan/ResSamp_Sep2002_Text.html 07/18/2003 NYC-WTC_000146687
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000146687Source: NYC Law Department, mirrored locally
Related records
Browse subjects →Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
Same-box records
No available related records indexed in this group.
Filed elsewhere
NYC-WTC_000094912
Invoice detailing billing for bulk and air sample analysis results including PLM, PCM, and TEM testing at 44 Wall Street.
21 shared non-person entities · 1 shared topics · similarity 0.983
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000093400
A license agreement document regarding exterior cleaning services for the property at 65 Liberty Street.
19 shared non-person entities · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000132519
A DEP results table showing daily asbestos air monitoring data at 100 Trinity Place from October to November 2001.
29 shared non-person entities · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000099112
Invoice from Fiber Control, Inc. dated November 27, 2002, for exterior cleanup services at multiple sites including 113 Nassau Street.
8 shared non-person entities · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000130799
Invoice from Benjamin Kurzban & Son Control, Inc. for roof work completed at 15 Dutch Street.
13 shared non-person entities · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000113167
Invoice from Fiber Control Inc. for cleaning services on the facade of 54 Warren Street.
13 shared non-person entities · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000099818
Billing record for asphalt and gravel roof cleanup services performed at 55 Nassau Street in November 2002.
8 shared non-person entities · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000104846
Fax cover sheet transmitting permit application documents for work at 102 and 104 Greenwich Street to the NYC DEP on December 3, 2001.
12 shared non-person entities · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000119790
Invoice from Fiber Control Inc. for DEP environmental protection services at 14 Barclay Street.
8 shared non-person entities · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗11 shared non-person entities · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000121922
Invoice dated October 2002 for environmental remediation services performed on the exterior of 118 Chambers Street.
9 shared non-person entities · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗More like this page
Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
Page similarity is temporarily unavailable or this page has no indexed vector.
Buildings in this record
Machine-extracted building matches; verify each source. Buildings, never households.
- 1 Beekman Street · 1 pages · confidence 0.15 · verify page 39
- 1 BROADWAY · 1 pages · confidence 0.30 · verify page 285
- 7 World Trade Center · 1 pages · confidence 0.15 · verify page 51
- 1 Liberty Plaza · 1 pages · confidence 0.15 · verify page 43
- 1 UBERTY PLAZA · 1 pages · confidence 0.15 · verify page 316
- 1-11 Nassau Street · 1 pages · confidence 0.15 · verify page 44
- 1-13 Fulton Street · 1 pages · confidence 0.15 · verify page 42
- 1-5 Dutch Street · 1 pages · confidence 0.15 · verify page 35
- 1-5 Thomas Street · 1 pages · confidence 0.15 · verify page 28
- 100 Church Street · 3 pages · confidence 0.15 · verify page 17
- 100 Gold Street · 1 pages · confidence 0.15 · verify page 32
- 102 North End Avenue · 1 pages · confidence 0.15 · verify page 295
- 102-104 Fulton Street · 1 pages · confidence 0.70 · verify page 283
- 106-108 Reade Street · 1 pages · confidence 0.00 · verify page 40
- 110 Maiden Lane · 1 pages · confidence 0.00 · verify page 4
- 114 Liberty Street · 1 pages · confidence 0.15 · verify page 266
- 120 Greenwich Street · 1 pages · confidence 0.15 · verify page 20
- 120 Liberty Street · 1 pages · confidence 0.15 · verify page 264
- 120 North End Avenue · 1 pages · confidence 0.15 · verify page 305
- 123 Washington Street · 1 pages · confidence 0.30 · verify page 242
- 125 Worth Street · 1 pages · confidence 0.00 · verify page 352
- 130 Liberty Street · 1 pages · confidence 0.30 · verify page 281
- 14 Rector Street · 1 pages · confidence 0.00 · verify page 11
- 140 Broadway · 1 pages · confidence 0.00 · verify page 13
- 150 Franklin Street · 1 pages · confidence 0.30 · verify page 279
- 225 Rector Street · 1 pages · confidence 0.15 · verify page 155
- 250 South End Avenue · 1 pages · confidence 0.30 · verify page 312
- 2 South End Avenue · 1 pages · confidence 0.15 · verify page 68
Others also read
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_000148952
Table listing volatile organic compound (VOC) sampling sites and dates outside of Ground Zero from September 2001 to January 2002.
Cited alongside this record in an Ask answer
NYC-WTC_000145510
Notice from NYC Law Department instructing staff to preserve World Trade Center documents for potential legal actions.
Cited alongside this record in an Ask answer
NYC-WTC_000149199
Department of Environmental Protection advisory letter dated October 25, 2001, addressed to residents of Lower Manhattan.
Cited alongside this record in an Ask answer
NYC-WTC_000096623
Part II of a health and safety plan for remediation and deconstruction at 30 Warren Street in January 2006.
Cited alongside this record in an Ask answer
NYC-WTC_000105599
Laboratory report detailing asbestos analysis results for samples from 61 Broadway collected in September 2001.
Cited alongside this record in an Ask answer