The order the City kept.

NYC-WTC_000022490

Department of Environmental Protection administrative record covering the period from May 17 to May 21, 2002 for the World Trade Center site.

NYC-WTC_000022491 – NYC-WTC_000022494

Administrative record header for a New York City WTC environmental file dated between May 17 and May 21, 2002.

NYC-WTC_000022495 – NYC-WTC_000022503

Technical log detailing gas chromatography mass spectrometry method parameters and calibration settings from May 2002.

NYC-WTC_000022504 – NYC-WTC_000022507

Laboratory report showing blank test results for nitrosamines and other compounds in sample AE11424 analyzed May 17-21, 2002.

NYC-WTC_000022508 – NYC-WTC_000022515

Calibration verification report listing response factors for target compounds in sample AE11424 analyzed May 17-21, 2002.

NYC-WTC_000022516 – NYC-WTC_000022525

Reference standard analysis report for nitrosamines and benzene derivatives in sample AE11424 analyzed May 17-21, 2002.

NYC-WTC_000022526 – NYC-WTC_000022538

Laboratory report of GCMS analysis for sample AE11425 conducted on May 29, 2002.

NYC-WTC_000022539 – NYC-WTC_000022549

Laboratory report of GCMS analysis for sample AE11426 conducted on May 29, 2002.

NYC-WTC_000022550 – NYC-WTC_000022560

Laboratory report of GCMS analysis for sample AE11427 conducted on May 29, 2002.

NYC-WTC_000022561 – NYC-WTC_000022574

Laboratory commentary noting no unusual compounds detected in the GCMS scan of sample AE11480 on May 29, 2002.

NYC-WTC_000022575 – NYC-WTC_000022587

Laboratory report of GCMS analysis for sample AE11481 conducted on May 29, 2002.

NYC-WTC_000022588 – NYC-WTC_000022597

Laboratory report of GCMS analysis for sample AE11482 conducted on May 29, 2002.

NYC-WTC_000022598 – NYC-WTC_000022608

Laboratory report of GCMS analysis for sample AE11566 conducted on May 29, 2002.

NYC-WTC_000022609 – NYC-WTC_000022618

Laboratory commentary regarding low recovery and subsequent re-analysis of sample AE10519 conducted on May 29, 2002.