The order the City kept.

NYC-WTC_000060688

Environmental Protection Department record from the World Trade Center site dated March 2002.

NYC-WTC_000060689 – NYC-WTC_000060690

Header page for a GCMS laboratory record series from April 2002 related to World Trade Center environmental testing.

NYC-WTC_000060691 – NYC-WTC_000060697

Laboratory report showing GCMS blank analysis results for volatile organic compounds with values below the method detection limit.

NYC-WTC_000060698 – NYC-WTC_000060701

Calibration report for GCMS analysis listing response factors and detection limits for various organic compounds.

NYC-WTC_000060702 – NYC-WTC_000060709

Laboratory data recording the analysis of GCMS reference standards to verify instrument performance and accuracy.

NYC-WTC_000060710 – NYC-WTC_000060717

Laboratory analysis report for sample AE06982 showing detection of surrogate compounds and unknown substances.

NYC-WTC_000060718 – NYC-WTC_000060725

Laboratory analysis report for sample AE06983 documenting surrogate recovery and identification of unknown compounds.

NYC-WTC_000060726 – NYC-WTC_000060733

Laboratory analysis report for sample AE06984 detailing surrogate recovery rates and detection of unknown substances.

NYC-WTC_000060734 – NYC-WTC_000060741

Laboratory analysis report for sample AE06985 showing surrogate recovery data and identification of unknown compounds.

NYC-WTC_000060742 – NYC-WTC_000060749

Laboratory analysis report for sample AE06986 documenting surrogate recovery and detection of unknown substances.

NYC-WTC_000060750 – NYC-WTC_000060757

Laboratory analysis report for sample AE06987 showing surrogate recovery data and identification of unknown compounds.

NYC-WTC_000060758 – NYC-WTC_000060765

Laboratory analysis report for sample AE06988 documenting surrogate recovery and detection of unknown substances.

NYC-WTC_000060766 – NYC-WTC_000060773

Laboratory analysis report for sample AE06989 showing surrogate recovery data and identification of unknown compounds.