The order the City kept.

NYC-WTC_000043520

Single-page administrative log from DEP Box 25 for GCMS X analyses dated March 26, 2002 with no analyses recorded.

NYC-WTC_000043521 – NYC-WTC_000043523

Technical record of GC/MS instrument calibration parameters and volume measurements for environmental analysis.

NYC-WTC_000043524 – NYC-WTC_000043529

Calibration table excerpt from GCMS analysis of sample LBA showing surrogate recovery data from April 19, 2002.

NYC-WTC_000043530 – NYC-WTC_000043535

Calibration table excerpt from GCMS analysis of sample CAL20 showing surrogate recovery data from April 18, 2002.

NYC-WTC_000043536 – NYC-WTC_000043541

Calibration table excerpt from GCMS analysis of sample REFA1 showing surrogate recovery data from April 19, 2002.

NYC-WTC_000043542

Single-page administrative log from DEP Box 25 for GCMS X analyses dated March 26, 2002 with no analyses recorded.

NYC-WTC_000043543 – NYC-WTC_000043546

Technical record of GC/MS analytical parameters and sample processing details for the batch dated April 8, 2002.

NYC-WTC_000043547 – NYC-WTC_000043559

Laboratory report documenting a GC/MS blank run to check for contamination in the analytical system on May 6, 2002.

NYC-WTC_000043560 – NYC-WTC_000043563

Calibration report listing target compounds and their concentrations for the GC/MS analysis performed on May 6, 2002.

NYC-WTC_000043564 – NYC-WTC_000043571

Report detailing the response values for GC/MS reference standards used to verify instrument performance on May 6, 2002.

NYC-WTC_000043572 – NYC-WTC_000043580

Summary of GC/MS analytical results for sample AE09652 processed on May 10, 2002, including surrogate recovery data.

NYC-WTC_000043581 – NYC-WTC_000043589

Summary of GC/MS analytical results for sample AE09653 processed on May 10, 2002, including surrogate recovery data.

NYC-WTC_000043590 – NYC-WTC_000043599

Summary of GC/MS analytical results for sample AE09674 processed on May 10, 2002, including surrogate recovery data.

NYC-WTC_000043600 – NYC-WTC_000043608

Summary of GC/MS analytical results for sample AE09675 processed on May 10, 2002, including surrogate recovery data.

NYC-WTC_000043609 – NYC-WTC_000043618

Summary of GC/MS analytical results for sample AE08952 processed on April 29, 2002, including surrogate recovery data.

NYC-WTC_000043619 – NYC-WTC_000043631

Laboratory report documenting GCMS analysis of sample AE08951 conducted on April 29, 2002, including detection of unknown compounds.

NYC-WTC_000043632 – NYC-WTC_000043640

Laboratory report documenting GCMS analysis of sample AE09098 conducted on May 10, 2002, including detection of unknown compounds.