The order the City kept.

NYC-WTC_000045396

Department of Environmental Protection GCMS analysis record for the World Trade Center site dated May 3-8 2002.

NYC-WTC_000045397 – NYC-WTC_000045399

Single fragmented page from a Department of Environmental Protection record dated May 3, 2002 with illegible content.

NYC-WTC_000045400 – NYC-WTC_000045410

GCMS blank analysis report for sample AE09447 listing compounds below detection limits from May 8, 2002.

NYC-WTC_000045411 – NYC-WTC_000045414

GCMS calibration report for sample AE09447 showing recovery percentages for various compounds from May 8, 2002.

NYC-WTC_000045415 – NYC-WTC_000045422

GCMS reference standard report for sample AE09447 showing quantified compound levels from May 8, 2002.

NYC-WTC_000045423 – NYC-WTC_000045433

GCMS analytical report for sample AE10607 showing unknown compounds and surrogate recovery data from May 15, 2002.

NYC-WTC_000045434 – NYC-WTC_000045442

Laboratory report documenting GCMS analysis of sample AE10608 including surrogate recovery data conducted on May 15, 2002.

NYC-WTC_000045443 – NYC-WTC_000045451

Laboratory notes describing re-extraction and re-analysis of sample AE09391 due to initial recovery issues on May 15, 2002.

NYC-WTC_000045452 – NYC-WTC_000045461

Technical document displaying GCMS calibration data and compound retention times for sample AE09391 processed in early May 2002.

NYC-WTC_000045462 – NYC-WTC_000045471

Laboratory report documenting GCMS analysis of sample AE09447 including surrogate recovery data conducted on May 15, 2002.

NYC-WTC_000045472 – NYC-WTC_000045479

Technical document displaying GCMS calibration data and compound retention times for sample AE09447 processed in early May 2002.

NYC-WTC_000045480 – NYC-WTC_000045489

Laboratory report documenting GCMS analysis of sample AE09448 including surrogate recovery data conducted on May 15, 2002.

NYC-WTC_000045490 – NYC-WTC_000045497

Technical document displaying GCMS calibration data and compound retention times for sample AE09448 processed in early May 2002.

NYC-WTC_000045498 – NYC-WTC_000045506

Laboratory report documenting GCMS analysis of sample AE09449 including surrogate recovery data conducted on May 15, 2002.

NYC-WTC_000045507 – NYC-WTC_000045515

Technical document displaying GCMS calibration data and compound retention times for sample AE09449 processed in early May 2002.

NYC-WTC_000045516 – NYC-WTC_000045525

Laboratory report documenting GCMS analysis of sample AE09451 including surrogate recovery data conducted on May 15, 2002.

NYC-WTC_000045526 – NYC-WTC_000045542

GC/MS instrument calibration report for polycyclic aromatic hydrocarbons and chlorinated compounds using 40 µg/L standards, dated May 2-3, 2002.