9 shared non-person entities · similarity 0.969
machine-extracted · confidence unavailable · Check page ↗Document / 6 pages
JLC Environmental purchase order form, March 19, 2003
Machine-extracted title · confidence 90%Purchase order form from JLC Environmental Consultants dated March 19, 2003 for environmental testing services.
NYC-WTC_000101256–000101261Folder label: “JLC REPORTS”
Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
.lheodoreJiys, Penny From: Theodorellys, Penny Sent: Wednesday, March 19, 2003 9:34 AM To: '[email protected]' Cc: Radhakrishnan, Krish; Gilsenan, Michael; '[email protected]' Subject: 114 Liberty Sampling
The following are comments received from the USEPA for the analytical data received to date. The analytical sensitivity was an issue I had addressed with you as well. We discussed the matter and you had gotten clarification from the lab. Please contact Mr. Chuck Nace of the USEPA directly and address the comments below. (Chuck Nace, Environmental Toxicologist, USEPA - Region 2 212.637.3459 /212.637.4164
Excerpts of the e-mail I received...
_there are several problems with the reporting limits (i.e., analytical sensitivity). 1) The PAH data indicates that the reporting limit used is 5 ug. This does not allow us to compare the results to the health-based benchmark because the reporting limit is higher than the benchmark. The reporting limit that was supposed to be used was I ug (as stated on page 3, item #5 in the scope of work). I hope future PAH analyses can use the appropriate reporting limit as it will result in data that can be compared to the health-based benchmark. 2) The asbestos data indicates that the reporting limit used is 0.0009 s/cc. This is acceptable for comparing to the health-based benchmark but the reporting limit that was supposed to be used was 0.0004 s/cc (as stated on page 4, Asbestos Collection and Analysis, item #2). Using the lower reporting limit will add confidence that the concentrations are below the health-based benchmark rather than being "at" the health-based benchmark and it is also what is being used in our residential leaning project and it is what was used for 125 Cedar Street. 3) The lead data indicates that the reporting limit used is 20 ug/ft2. Again, this is acceptable for comparing to the health-based benchmark of 25 ug/ft2, but for our projects we used a reporting limit of 2.32 ug/ft2 and a reporting limit of 9 ug/ft2 was used for 125 Cedar Street. A summary of the data I have received to data is presented below: Asbestos - TEM 40 samples at or below the health-based benchmark of 0.0009 (28 were below the reporting limit of 0.0009), 1 above health-based benchmark @ 0.0018 s/cc Asbestos/Fibrous Glass - PCM 3 samples were below the health-based benchmark of 0.01 f/cc and 2 samples were overloaded and could not be analyzed. Lead
NYC-WTC 000101260
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000101260Source: 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_000163085
Laboratory response explaining method detection limit versus practical quantitation limit for PAH analysis and confirmation that samples did not require reanalysis.
6 shared non-person entities · 1 shared topics · similarity 0.948
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155243
EPA feedback on reporting limits for PAH and asbestos data at 114 Liberty.
4 shared non-person entities · 1 shared topics · similarity 0.941
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000107277
Transmission journal record confirming receipt of asbestos and lead analysis data on November 14, 2002.
7 shared non-person entities · similarity 0.938
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163082
DEP review of revised PAH laboratory results for 114 Liberty identifying concerns about detection limit consistency between original and revised analytical sheets.
6 shared non-person entities · 1 shared topics · similarity 0.938
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000156088
Memo advising against a camera crew at 125 Cedar Street due to tenant issues and recommending print media.
9 shared non-person entities · similarity 0.937
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000107518
Letter confirming DEP cleanup completion at 125 Liberty Street and concurrence with USEPA evaluation.
8 shared non-person entities · similarity 0.932
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000148952
Table listing volatile organic compound (VOC) sampling sites and dates outside of Ground Zero from September 2001 to January 2002.
8 shared non-person entities · similarity 0.927
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000156056
Letter from EPA Region 2 summarizing the evaluation of analytical data for asbestos, PAHs, and other contaminants at 125 Cedar Street.
8 shared non-person entities · similarity 0.927
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000107523
EPA Region II letter summarizing analytical data review for contaminants at 125 Liberty Street.
7 shared non-person entities · similarity 0.925
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000156067
Letter from EPA Region 2 summarizing the evaluation of analytical data for asbestos, PAHs, and other contaminants at 125 Cedar Street.
8 shared non-person entities · similarity 0.924
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000105578
Administrative file header identifying records related to the property at 61 Broadway.
6 shared non-person entities · 1 shared topics · similarity 0.924
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.
- 125 Cedar Street · 2 pages · confidence 0.85 · verify page 1
- 290 Broadway · 1 pages · confidence 0.15 · verify page 2
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_000100951
Fragmented JLC report page from the World Trade Center site archive.
Filed in the same folder
NYC-WTC_000100952
Administrative document serving as a section header or index for the JLC Environmental reports collection.
Filed in the same folder
NYC-WTC_000100965
Lab report forwarding second-round PAH wipe sampling results with attached cover letters and dioxin results to follow.
Filed in the same folder
NYC-WTC_000101006
Facsimile transmission cover sheet sending laboratory reports from ATC Associates to JLC Environmental Consultants in April 2003.
Filed in the same folder
NYC-WTC_000101017
Automated log record confirming the successful transmission of six pages to the DEP lead tracking unit on April 4, 2003.
Filed in the same folder