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Selected filing

GCMS surrogate recovery data for sample AE07633, April 2002

NYC-WTC_000040193

Laboratory report showing blank sample results for volatile organic compounds to verify analytical system cleanliness in April 2002.

Environmental Protection, Dept. of · Volume NYC-WTC0002 · Box DEP Box 23

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Selected filing: NYC-WTC_000040193, page 1

Comparison filing

GCMS analysis results, sample AE07519, April 2002

NYC-WTC_000047413

Gas chromatography-mass spectrometry analysis of sample AE07519 performed on April 11, 2002, showing unknown compounds and 2,4-DDD surrogate at 98 ug with 5.0 ug MDL.

Environmental Protection, Dept. of · Volume NYC-WTC0002 · Box DEP Box 27

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Comparison filing: NYC-WTC_000047413, page 1