The order the City kept.

NYC-WTC_000030679

Gas chromatography-mass spectrometry scan record from late October to November 2001 regarding environmental sample analysis.

NYC-WTC_000030680 – NYC-WTC_000030684

Chromatogram and calibration data for DFTPP standard used to verify GC/MS instrument performance during environmental analysis.

NYC-WTC_000030685 – NYC-WTC_000030697

Header page for a gas chromatography-mass spectrometry scan file related to environmental testing at the World Trade Center site.

NYC-WTC_000030698 – NYC-WTC_000030707

Gas chromatography-mass spectrometry analysis of sample AD25845, December 12, 2001, identifying other unknown compounds with threshold of 5.0 ug.

NYC-WTC_000030708 – NYC-WTC_000030718

Laboratory report documenting GCMS analysis of sample AD25873 conducted on December 12, 2001, noting unknown compounds.

NYC-WTC_000030719 – NYC-WTC_000030730

Laboratory commentary on GCMS scan of sample AD25874 dated December 13, 2001, identifying tetrachloroethane and noting a blank analysis.

NYC-WTC_000030731 – NYC-WTC_000030741

Laboratory report documenting GCMS analysis of sample AD25938 conducted on December 12, 2001, including surrogate compound data.

NYC-WTC_000030742 – NYC-WTC_000030751

Laboratory report documenting GCMS analysis of sample AD25939 conducted on December 12, 2001, including surrogate compound data.

NYC-WTC_000030752 – NYC-WTC_000030762

Laboratory report documenting GCMS analysis of sample AD25940 conducted on December 12, 2001, including surrogate compound data.

NYC-WTC_000030763 – NYC-WTC_000030773

Laboratory report documenting GCMS analysis of sample AD25944 conducted on December 12, 2001, including surrogate compound data.

NYC-WTC_000030774 – NYC-WTC_000030783

Laboratory report documenting GCMS analysis of sample AD25945 conducted on December 12, 2001, including surrogate compound data.

NYC-WTC_000030784 – NYC-WTC_000030794

Laboratory report documenting GCMS analysis of sample AD25946 conducted on December 12, 2001, including surrogate compound data.

NYC-WTC_000030795 – NYC-WTC_000030805

Laboratory report documenting GCMS analysis of sample AD25947 conducted on December 12, 2001, including surrogate compound data.

NYC-WTC_000030806 – NYC-WTC_000030815

Laboratory report documenting GCMS analysis of sample AD25948 conducted on December 12, 2001, including surrogate compound data.

NYC-WTC_000030816 – NYC-WTC_000030825

Laboratory report documenting GCMS analysis of sample AD25949 conducted on December 12, 2001, including surrogate compound data.

NYC-WTC_000030826 – NYC-WTC_000030835

Laboratory report documenting GCMS analysis of sample AD26005 conducted on December 12, 2001, including surrogate compound data.

NYC-WTC_000030836 – NYC-WTC_000030853

Laboratory report documenting GCMS analysis of sample AD26006 conducted on December 19-20, 2001.

NYC-WTC_000030854 – NYC-WTC_000030863

Laboratory report documenting GCMS analysis of sample AD26007 conducted on December 12, 2001.

NYC-WTC_000030864 – NYC-WTC_000030874

Laboratory report documenting GCMS analysis of sample AD26008 conducted on December 12, 2001.

NYC-WTC_000030875 – NYC-WTC_000030884

Laboratory report documenting GCMS analysis of sample AD26009 conducted on December 12, 2001.

NYC-WTC_000030885 – NYC-WTC_000030894

Laboratory report documenting GCMS analysis of sample AD26010 conducted on December 12, 2001.

NYC-WTC_000030895 – NYC-WTC_000030906

Laboratory report documenting GCMS analysis of sample AD26011 conducted on December 12, 2001.

NYC-WTC_000030907 – NYC-WTC_000030917

Laboratory report documenting GCMS analysis of sample AD26078 conducted on December 12, 2001.