Custody form for samples handled by the Westchester County Department of Labs & Research.
NYC-WTC_000072138–000072145Folder label: “26624”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
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11 Analytical Procedures
11.1 Reference Methods 11.1.1 The Environmental Protection Agency (EPA) Information Collection Rule (ICR) Microbial Laboratory Manual, April 1996 11.1.2 The EPA Method 1623, April 1999.
12 Quality Assurance and Quality Control (QA/QC) Checks
12.1 Confmnation and verification of presumed oocysts and/or cysts are perfonned by making comparison to the positive and negative control organisms examined with each sample. Cysts and oocysts are only "confinned" if internal stnictures are identified. 12.2 As a sterility indicator, the temperature is checked during autoclaving runs to make sure appropriate sterilization temperatures are being attained. This is maintained in the logbook that is kept near the autoclave. The accurateness of the autoclave is checked by autoclave tape, kill-it ampules, broth tests and temperature checks. These results are recorded in a logbook located next to the autoclave. 12.3 Over the course of a week, all of the samples processed using the ICR method are considered a BATCH. A negative and a positive filter are processed as QC samples for each batch for each week. These filters are prepared according to the instructions in the ICR for QC samples. Matrix spikes are perfoiTned weekly and matrix spike duplicates are perfonned monthly. 12.4 Over the course of a week, all of the samples processed using the 1623 method ai’e considered a BATCH. A negative and a positive filter are processed as QC samples for each batch for each week. These filters are prepared according to the instructions in the 1623 manual for QC samples. Matrix spikes are perfonned weekly. 12.5 The PE samples are cunently distributed by the US EPA, since NYC DEP is part of the National Performance Evaluation Program.
12.6 Deviation in microscopic counts between analysts is derived from duplicate counts perfonned by each Principle Analyst quarterly.
13 QC Summary
13.1 Documentation
QUAL1080D02.doc Page 9 of 11
NYC-WTC_000072141
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NYC-WTC_000072053
Form documenting the chain of custody for samples submitted to the Westchester County Department of Labs & Research.
9 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000070918
Chain of custody form for samples submitted to the Westchester County Department of Labs and Research in Valhalla, NY.
11 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000072330
Record tracking the chain of custody for environmental samples submitted to the Westchester County laboratory.
10 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000070845
Chain of custody form for samples submitted to the Westchester County Department of Labs and Research in Valhalla, NY.
8 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.974
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000072019
Document tracking the transfer and custody of samples received by Westchester County Department of Labs & Research.
11 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.973
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000070546
Record documenting the chain of custody for samples submitted to the Westchester County Department of Labs and Research.
10 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.969
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000073316
Document recording the custody chain and handling details for samples submitted to the Westchester County Department of Labs and Research.
11 shared non-person entities · 1 shared topics · similarity 0.975
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000027165
Document tracking the custody and handling of environmental samples submitted to the laboratory.
10 shared non-person entities · 1 shared topics · similarity 0.971
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000027060
Administrative index page for DEP Box 19 records related to the World Trade Center site.
9 shared non-person entities · 1 shared topics · similarity 0.971
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000027699
Document tracking the transfer of environmental samples to the Westchester County Department of Labs and Research.
10 shared non-person entities · 1 shared topics · similarity 0.970
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000027065
Document tracking environmental samples collected at the WTC site and transferred to a laboratory for analysis.
10 shared non-person entities · 1 shared topics · similarity 0.970
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000026103
Administrative records for multiple World Trade Center environmental samples from DEP Box 19.
10 shared non-person entities · 1 shared topics · similarity 0.969
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NYC-WTC_000072137
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Form documenting the chain of custody for samples submitted to the Westchester County Department of Labs & Research.
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Chain of custody form for samples submitted to the Westchester County Department of Labs and Research in Valhalla, NY.
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