OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
PSC Analytical Services Certificate of Analysis
R02100401 R02100401 R02100401 Client ID: 07A 07A 07A Lab No.: 039072 02 039072 02 039072 02 Date Sampled: 02/10/09 02/10/09 02/10/09 Matrix:
Component RDL Units TEF # of Isomers
Dioxins and furans
2,3,7,8-CI4DBF 2.5 pg <2.5 <0.25 2,3,7,8-CI4DBD 2.9 <2.9 <2.9 1,2,3,7,8-CI5DBF 1.9 <1.9 <0.095 2,3,4,7,8-CI5DBF 1.8 <1.8 <0.92 n 1,2,3,7,8-CI5DBD 3.4 <3.4 <1.7 M 1,2,3,4,7,8-CI6DBF 1.4 <1.4 <0.14 1,2,3,6,7,8-CI6DBF 1.3 » <1.3 <0.13 2,3,4,6,7,8-CI6DBF 1.5 <1.5 <0.15 n 1,2,3,7,8,9-CI6DBF 1.7 <1.7 <0.17 n 1,2,3,4,7,8-CI6DBD 2.1 <2.1 <0.21 1,2,3,6,7,8-CI6DBD 1.9 <1.9 <0.19 1,2,3,7,8,9-CI6DBD 1.9 <1.9 <0.19 1,2,3,4,6,7,8-CI7DBF 40 M <40 <0.40 1,2,3,4,7,8,9-CI7DBF 46 It <46 <0.46 It 1,2,3,4,6,7,8-CI7DBD 2.2 <2.2 <0.022 1,2,3,4,6,7,8,9-CI8DBF 8.8 It <8.8 <0.0088 1,2,3,4,6,7,8,9-CI8DBD 7.7 <7.7 <0.0077
TEF pg 0 EPA Requested TEQ < 3.95 MAX TEF < 7.9 Units Ng/m’ < 0.40
ZT4CDF 2.0 pg <2.0 0 2P5CDF 1.9 <1.9 0 SH6CDF n 1.4 <1.4 0 ZH7CDF 43 <43 0 OCDF 8.8 <8.8 0 2T4CDD 2.9 It <2.9 0 2P5CDD 3.4 <3.4 0 2H6CDD 1.9 <1.9 0 ZH7CDD 2.2 <2.2 0 OCDD 7.7 <7.7 0 Surrogate Recoveries % 2,3,7.8-T4CDF-13C12 87 2.3,7,8-T4CDD-13C12 92 1,2,3,7,8-P5CDF-13C12 94 1,2,3,7,8-P5CDD-13C12 97 1,2,3,6,7,8-H6CDF-13C12 85 1,2,3,6,7,8-H6CDD-13C12 83 1,2,3,4,6,7,8-H7CDF-13C12 95 1,2,3,4,6,7,8-H7CDD-13C12 89 OCDD-13C12 79
Certificate No:2J0574 file # =R02100401 TEQ Report nh Page 13 of 40 Revision No. 0
NYC-WTC_000157063
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_000156943
Correspondence regarding preliminary post-test dioxin wipe sample results and the disposal of previous PAH extractions.
6 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000157006
Correspondence submitting final dioxin wipe sample results and requesting electronic delivery of the final report.
5 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155231
EPA technical review of dioxin laboratory results identifying missing TEQ calculations and requesting proper reporting units and health-based benchmark comparisons.
4 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.934
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.934
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000130104
Chain of custody document from PSC Analytical Services regarding the receipt and analysis of samples for the DEP cleanup project.
6 shared non-person entities · 1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162576
Forwarding an updated HVAC status spreadsheet with added quadrant columns and explanations for system information reporting.
6 shared non-person entities · 1 shared topics · similarity 0.989
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · similarity 0.935
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · similarity 0.934
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000100952
Administrative document serving as a section header or index for the JLC Environmental reports collection.
5 shared non-person entities · 1 shared topics · similarity 0.934
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · similarity 0.932
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000130104
Chain of custody document from PSC Analytical Services regarding the receipt and analysis of samples for the DEP cleanup project.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000130104
Chain of custody document from PSC Analytical Services regarding the receipt and analysis of samples for the DEP cleanup project.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000130104
Chain of custody document from PSC Analytical Services regarding the receipt and analysis of samples for the DEP cleanup project.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000130104
Chain of custody document from PSC Analytical Services regarding the receipt and analysis of samples for the DEP cleanup project.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162576
Forwarding an updated HVAC status spreadsheet with added quadrant columns and explanations for system information reporting.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162576
Forwarding an updated HVAC status spreadsheet with added quadrant columns and explanations for system information reporting.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Machine-extracted building matches; verify each source. Buildings, never households.
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.
Notice from the New York City Law Department instructing staff to preserve original World Trade Center documents for potential legal actions.
Filed in the same folder
Filed in the same folder
Filed in the same folder
Correspondence requesting a formal letter requiring the sealing of firebrick walls at 125 Cedar Street to allow for reoccupancy.
Filed in the same folder
NYC-WTC_000156799
Correspondence documenting contractor actions to remove back panels behind bookshelves for cleaning without damaging shelving units.
Filed in the same folder