The order the City kept.

NYC-WTC_000052330

Header page from a series of GCMS laboratory reports covering samples analyzed between February 22 and 23, 2002.

NYC-WTC_000052331

Document header or log entry indicating GCMS analysis activities conducted between February 22 and 23, 2002.

NYC-WTC_000052332 – NYC-WTC_000052354

Technical data sheet recording GCMS Method 508 calibration results including response factors and percent relative standard deviation for various compounds.

NYC-WTC_000052355 – NYC-WTC_000052356

Quality control report verifying GCMS performance using DFTPP standards with pass/fail status for specific mass fragments.

NYC-WTC_000052357 – NYC-WTC_000052360

Laboratory report detailing GCMS analysis results for sample AE00943 listing concentrations of volatile organic compounds.

NYC-WTC_000052361 – NYC-WTC_000052363

Reviewed calibration data sheet for GCMS Method 508 listing retention times and concentrations for deuterated internal standards.

NYC-WTC_000052364 – NYC-WTC_000052368

Reference data from GCMS analysis of sample AE00943 listing detected compounds and their concentrations in micrograms.

NYC-WTC_000052369 – NYC-WTC_000052387

Quality control blank report for GCMS analysis of sample AE00943 showing no detected compounds above the method detection limit.

NYC-WTC_000052388 – NYC-WTC_000052395

Laboratory report detailing GCMS scan results for sample AE00949, including detection of unknown compounds and surrogate recovery data.

NYC-WTC_000052396 – NYC-WTC_000052403

Laboratory commentary noting no unusual compounds found in sample AE00944, with one standard recovery below acceptance range.

NYC-WTC_000052404 – NYC-WTC_000052411

Laboratory report detailing GCMS scan results for sample AE00947, including detection of unknown compounds and surrogate recovery data.

NYC-WTC_000052412 – NYC-WTC_000052419

Laboratory commentary noting no unusual compounds found in sample AE00948, with one standard recovery below acceptance range.