Laboratory analytical results document from ATC Associates showing silica concentrations in air samples collected on December 7, 2001.
NYC-WTC_000175063–000175064
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Dec 19 01 08:SGa PSC Analytical Services 6103219667 p.5
INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING • EPAAWIAP 101262-0 > MY DOHIMELAC10903 •NJDEP 77D20 •AIHAACCREDITATIONNO. 100439 • PA DEP 06-353 •CTDPHPH-02M •NCDENR599
ANALYTICAL SERVICES Analytical Results for ATC Associates WorkOrder: ROl120151 Client Reference: 19125-0246; Silica (12/7/01)
Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ug) i (mg/m’) ; (ppm) (ug)
Client ID: Cl I - ATC-I207-STY Lab ID: -HA Date Sampled: 12/7/01 Matrix; Filter AirVol.(L): 8ia Total Particulate Matter <100 <0.123 100 TOTAL PARTICULAT 12/14/2001 ADM Silica (Quartz Total) <5 <0.00613 5 AIRBORNE SILICA 12/14/2001 ADM
Client ID: C12 - ATC-1207-STY LablD: -12A Date Sampled: 12/7/01 Matrix: Filter AirVol.(L); 816 Total Particulate Matter <100 <0.123 100 TOTAL PARTICULAT 12ZU/2001 ADM Silica (Quartz Total) <5 <0.00613 5 AIRBORNE SILICA 12/14/2001 ADM
Client ID: Cl3 - ATC-l207-STY Lab ID: -13A Date Sampled: 12/7/01 Matrix: Filter Air Vol.(L): SlA Total Particulate Matter <100 100 TOTAL PARTICULAT 12/14/2001 ADM Silica (Quartz Total) <5 5 AIRBORNE SILICA 12/14/2001 ADM (a) Analysis indicates possible breakthrough; back section result is greater than % of the front section result.
General Notes: <• Less than the indicated limit of detection (LCD). Information not available or not applicable. Back sections were checked and showed no significant breakthrough.
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CONFIDENTIAL, CITY_21MC100_003429674 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175064
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NYC-WTC_000175789
Laboratory report page showing analytical results for silica samples collected by ATC Associates for the NYC Board of Education in December 2001.
4 shared non-person entities · 1 shared topics · similarity 0.988
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Laboratory analytical results document from ATC Associates showing silica concentrations in air samples collected in early February 2002.
4 shared non-person entities · 1 shared topics · similarity 0.985
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Laboratory analytical results document from ATC Associates showing silica concentrations in air samples collected in December 2001.
4 shared non-person entities · 1 shared topics · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175781
Laboratory report page containing analytical results for air samples collected by ATC Associates for the NYC Board of Education.
4 shared non-person entities · 1 shared topics · similarity 0.978
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Laboratory report page containing analytical results for air samples collected by ATC Associates for the NYC Board of Education in May 2002.
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175789
Laboratory report page showing analytical results for silica samples collected by ATC Associates for the NYC Board of Education in December 2001.
Similarity score 0.990 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175061
Laboratory analytical results document from ATC Associates showing silica concentrations in air samples collected in December 2001.
Similarity score 0.988 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.987 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175065
Laboratory analytical results document from ATC Associates showing silica concentrations in air samples collected in early February 2002.
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