The order the City kept.

NYC-WTC_000050432

Administrative record from DEP Box 28 documenting GCMS activities at the World Trade Center site in January 2002.

NYC-WTC_000050433 – NYC-WTC_000050434

Fragmented page containing a document identifier and instructions regarding liquid-liquid extractor drip rates from January 24-25, 2002.

NYC-WTC_000050435 – NYC-WTC_000050438

Gas chromatography-mass spectrometry calibration analysis of sample AE00167 detecting multiple organic compounds including nitrosamines and dichlorobenzenes.

NYC-WTC_000050439 – NYC-WTC_000050443

Laboratory report listing concentrations of volatile organic compounds in sample AE00167 analyzed on January 24-25, 2002.

NYC-WTC_000050444 – NYC-WTC_000050480

Laboratory blank report for GCMS analysis of sample AE00167 showing compound concentrations and quality control values.

NYC-WTC_000050481 – NYC-WTC_000050499

Laboratory report for sample AE00167 documenting detection of unknown compounds and surrogate recovery on January 28, 2002.

NYC-WTC_000050500 – NYC-WTC_000050518

Laboratory report for sample AE00168 documenting detection of unknown compounds and surrogate recovery on January 28, 2002.

NYC-WTC_000050519 – NYC-WTC_000050538

Laboratory report for sample AE00169 documenting detection of unknown compounds and surrogate recovery on January 28, 2002.

NYC-WTC_000050539 – NYC-WTC_000050557

Laboratory report for sample AE00247 documenting detection of unknown compounds and surrogate recovery on January 28, 2002.

NYC-WTC_000050558 – NYC-WTC_000050576

Laboratory report listing unknown compounds and surrogate recovery for sample AE00248 analyzed on January 28, 2002.

NYC-WTC_000050577 – NYC-WTC_000050595

Laboratory report listing unknown compounds and surrogate recovery for sample AE00249 analyzed on January 28, 2002.

NYC-WTC_000050596 – NYC-WTC_000050614

Laboratory report listing unknown compounds and surrogate recovery for sample AE00250 analyzed on January 28, 2002.