2026-10-16
- documents
- 64,385
- pages
- 230,888
- size
- 41.6 GB
- added
- 40,757
- removed
- 0
- changed
- 0
Recorded changes
- added
NYC-WTC_000208638 – NYC-WTC_000208641
Summary of analytical results for water samples collected from the main and south discharge points at the World Trade Center site.
Design and Construction, Dept. of · 4 pages
- added
NYC-WTC_000208642 – NYC-WTC_000208644
Proposal by JCC Construction Corp to remove contaminated soil and repair playground and pier facilities at the World Trade Center site.
Design and Construction, Dept. of · 3 pages
- added
NYC-WTC_000208645
Laboratory data report detailing dust constituent analysis for samples collected at 90 Church Street in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208646
Laboratory data report detailing dust constituent analysis for samples collected at 90 Church Street in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208647 – NYC-WTC_000208648
Laboratory report presenting mercury concentration levels in water samples collected from the World Trade Center site in October 2001.
Design and Construction, Dept. of · 2 pages
- added
NYC-WTC_000208649
Report detailing the toxicity equivalence of dioxin and furan compounds found in samples from the World Trade Center site.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208650
Daily monitoring log for Freon levels at the North and South Protection areas of the World Trade Center site under the emergency safety plan.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208651
Data sheet listing concentrations of cadmium, copper, lead, mercury, nickel, and zinc in water samples from the World Trade Center site.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208652
Laboratory data sheet for volatile organic compound analysis of a water sample collected from the World Trade Center site in April 2002.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208655
Chain-of-custody form requesting bacteriological analysis of a waste water sample collected from the north end of Lake.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208657 – NYC-WTC_000208661
Document containing a summary of laboratory analytical results for environmental samples from the World Trade Center site.
Design and Construction, Dept. of · 5 pages
- added
NYC-WTC_000208662
Transmittal letter enclosing water analysis results showing MTBE levels in sump and dewatering discharge at the World Trade Center site.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208663 – NYC-WTC_000208664
Tabular record of MTBE concentrations in discharge water from World Trade Center dewatering operations tracked over several weeks.
Design and Construction, Dept. of · 2 pages
- added
NYC-WTC_000208665
Log of MTBE levels in discharge water from World Trade Center dewatering operations recorded between December 2001 and January 2002.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208666
Laboratory data sheet for pesticide organic compound analysis of a water sample collected from the World Trade Center site in January 2002.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208667 – NYC-WTC_000208671
Summary of analytical results for volatile compounds including benzene in water samples from World Trade Center discharge points.
Design and Construction, Dept. of · 5 pages
- added
NYC-WTC_000208672 – NYC-WTC_000208676
Summary of laboratory results for soil and water samples collected at the World Trade Center site in January 2002.
Design and Construction, Dept. of · 5 pages
- added
NYC-WTC_000208677 – NYC-WTC_000208678
Record of MTBE concentrations in discharge water from World Trade Center dewatering operations tracked over several weeks.
Design and Construction, Dept. of · 2 pages
- added
NYC-WTC_000208679
Data table listing water analysis results for the World Trade Center dewatering operations from December 2001 through January 2002.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208680
Letter transmitting water sample analysis results from the WTC site taken on April 15, 2002, including MTBE levels.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208681 – NYC-WTC_000208682
Laboratory data summary from Severn Trent Laboratories reporting dioxin and furan results for water samples collected on March 25, 2002.
Design and Construction, Dept. of · 2 pages
- added
NYC-WTC_000208683
Letter transmitting water sample analysis results from the WTC site taken on March 4, 2002, including MTBE levels.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208684
Summary table of MTBE concentrations in discharge from WTC sumping and dewatering operations recorded between December 2001 and January 2002.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208685 – NYC-WTC_000208687
Analytical results summary from JLC Environmental Consultants for asbestos bulk samples collected on September 28-29, 2001.
Design and Construction, Dept. of · 3 pages
- added
NYC-WTC_000208688 – NYC-WTC_000208690
Analytical results summary for asbestos samples collected from floors 3-26 of 3 World Financial Center on September 28-29, 2001.
Design and Construction, Dept. of · 3 pages
- added
NYC-WTC_000208691 – NYC-WTC_000208693
Analytical results summary for asbestos samples collected from floors 3-26 of 3 World Financial Center on September 28-29, 2001.
Design and Construction, Dept. of · 3 pages
- added
NYC-WTC_000208694 – NYC-WTC_000208696
Analytical results summary for asbestos samples collected from floors 3-26 of 3 World Financial Center on September 28-29, 2001.
Design and Construction, Dept. of · 3 pages
- added
NYC-WTC_000208697 – NYC-WTC_000208699
Analytical results summary for asbestos samples collected from floors 3-26 of 3 World Financial Center on September 28-29, 2001.
Design and Construction, Dept. of · 3 pages
- added
NYC-WTC_000208700 – NYC-WTC_000208701
Chain of custody transmittal form for dust bulk samples submitted by Total Safety Consultants, LLC.
Design and Construction, Dept. of · 2 pages
- added
NYC-WTC_000208702 – NYC-WTC_000208703
Chain of custody form for air samples collected at WTC-EMG on October 7, 2001, analyzed for lead using NIOSH 7082 method.
Design and Construction, Dept. of · 2 pages
- added
NYC-WTC_000208704 – NYC-WTC_000208713
General bulk sample data and chain of custody form containing project information and sample location details.
Design and Construction, Dept. of · 10 pages
- added
NYC-WTC_000208714 – NYC-WTC_000208723
Chain of custody form for bulk samples collected at Ground Zero on May 29, 2001, including pile and parking garage locations.
Design and Construction, Dept. of · 10 pages
- added
NYC-WTC_000208724 – NYC-WTC_000208725
Summary of environmental monitoring data collected at the World Trade Center site between October 10 and October 16, 2001.
Design and Construction, Dept. of · 2 pages
- added
NYC-WTC_000208733 – NYC-WTC_000208734
Laboratory results for metals analysis in water samples collected on October 15, 2001, including cadmium and chromium data.
Design and Construction, Dept. of · 2 pages
- added
NYC-WTC_000208735
Log of noise exposure measurements for a truck operator at the World Trade Center site during a shift in April 2002.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208736 – NYC-WTC_000208737
Summary of air sample results from the World Trade Center site for the week of April 15-19, 2002, noting exposure levels.
Design and Construction, Dept. of · 2 pages
- added
NYC-WTC_000208741
Summary table of air sampling data from the World Trade Center site for the week of April 5-12, 2002.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208742 – NYC-WTC_000208743
Summary of air sample results from the World Trade Center site for the week of April 5-12, 2002, noting exposure levels.
Design and Construction, Dept. of · 2 pages
- added
NYC-WTC_000208744
Lab report detailing industrial hygiene asbestos air sample analysis methods including PCM and TEM for worker exposure assessment.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208745
Labor report summarizing industrial hygiene air sample results for silica and other contaminants at the World Trade Center site.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208746
Document explaining the fields used in air sample charts, including sample ID, zone, job description, and respirator usage.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208747
Cover letter from ATC Associates providing air sample results for contractor operations at the World Trade Center recovery site.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208748
Detailed log of personal and area air samples collected during core drilling operations at WTC Level B3 in late April 2002.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208749
Cover letter from Liberty Mutual providing air sample results for contractor operations at the World Trade Center recovery site.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208751
Summary report of air sample analysis results comparing exposure levels against occupational exposure limits for February and March 2002.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208752
Memo notifying staff that asbestos fiber exposures at WTC Level B were below detection limits and reporting bulk sample results.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208753 – NYC-WTC_000208754
Summary of lab results showing mostly compliant exposure levels with exceptions for lead, arsenic, and diesel exhaust at Tower 2.
Design and Construction, Dept. of · 2 pages
- added
NYC-WTC_000208755 – NYC-WTC_000208756
Summary of lab results highlighting exceedances for diesel exhaust fumes and quartz concentrations at various WTC site locations.
Design and Construction, Dept. of · 2 pages
- added
NYC-WTC_000208757 – NYC-WTC_000208766
Data log listing analytical results for aluminum, antimony, and arsenic from surface samples collected at the World Trade Center site.
Design and Construction, Dept. of · 10 pages
- added
NYC-WTC_000208768
Field data sheet recording carbon monoxide concentration measurements and time-weighted averages for workers at the World Trade Center site.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208775 – NYC-WTC_000208777
Reference table listing occupational exposure limits and conversion factors for metals and dusts including aluminum, arsenic, and beryllium.
Design and Construction, Dept. of · 3 pages
- added
NYC-WTC_000208778 – NYC-WTC_000208785
Log of air sample results from December 2001 showing concentrations for aluminum, antimony, and arsenic below detection limits.
Design and Construction, Dept. of · 8 pages
- added
NYC-WTC_000208786 – NYC-WTC_000208790
New York State Department of Health report detailing bulk sample analysis results for silica, aluminum, antimony, and asbestos in debris.
Design and Construction, Dept. of · 5 pages
- added
NYC-WTC_000208791 – NYC-WTC_000208815
Log of safety hazards observed during OSHA inspections at the World Trade Center site, including unsecured cylinders and aerial lift issues.
Design and Construction, Dept. of · 25 pages
- added
NYC-WTC_000208816 – NYC-WTC_000208817
Report on hyperspectral data analysis identifying ammonia and freon-22 emissions from debris piles and refrigeration infrastructure at the WTC site.
Design and Construction, Dept. of · 2 pages
- added
NYC-WTC_000208818
Field data collection form for environmental monitoring activities conducted at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208819
Chain of custody document tracking the transfer and handling of asbestos air monitoring samples from Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208820
Chain of custody document recording field data and sample transfer details for asbestos air monitoring at Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208821
Chain of custody form documenting the collection and transfer of asbestos air samples from Stuyvesant High School for laboratory analysis.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208822
Chain of custody form for asbestos air monitoring samples collected at Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208823
Chain of custody documentation for asbestos air monitoring samples from Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208824
Chain of custody record for asbestos air monitoring samples taken at Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208825
Chain of custody form tracking asbestos air monitoring samples from Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208826
Chain of custody document for asbestos air monitoring samples collected at Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208827
Chain of custody form for asbestos air monitoring samples from Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208828
Chain of custody record for asbestos air monitoring samples taken at Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208829
Chain of custody form tracking asbestos air monitoring samples from Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208830
Chain of custody document for asbestos air monitoring samples collected at Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208831
Chain of custody form for asbestos air monitoring samples from Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208832
Chain of custody record for asbestos air monitoring samples taken at Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208833
Chain of custody form tracking asbestos air monitoring samples from Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208834
Chain of custody document for asbestos air monitoring samples collected at Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208835
Chain of custody form for asbestos air monitoring samples from Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208836
Chain of custody record for asbestos air monitoring samples taken at Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208837
Chain of custody form tracking asbestos air monitoring samples from Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208838
Chain of custody document for asbestos air monitoring samples collected at Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208839
Chain of custody form for asbestos air monitoring samples from Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208840
Chain of custody record for asbestos air monitoring samples taken at Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208841
Chain of custody form tracking asbestos air monitoring samples from Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208842
Form documenting the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208843
Form recording the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208844
Form documenting the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208847
Form recording the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208848
Laboratory report detailing the results of asbestos fiber analysis for air samples collected at Stuyvesant High School.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208849
Form documenting the chain of custody and field data for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208850
Memorandum reporting transmission electron microscopy results for two ambient air samples collected outside Stuyvesant High School on October 11, 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208851
Form recording the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208852
Memorandum reporting transmission electron microscopy results for two ambient air samples collected outside Stuyvesant High School on October 13, 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208853
Form documenting the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208854
Form recording the chain of custody and field data for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208855
Form documenting the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208856
Form recording the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208857
Form documenting the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208858
Form recording the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208859
Form documenting the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208860
Form recording the chain of custody and field data for asbestos air samples collected at Stuyvesant High School on October 28, 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208861
Form documenting the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208862
Form recording the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208863
Form documenting the chain of custody for asbestos air samples collected at Stuyvesant High School in October 2001.
Design and Construction, Dept. of · 1 pages
- added
NYC-WTC_000208864
Chain of custody document for asbestos air samples collected at Stuyvesant High School on October 14, 2001.
Design and Construction, Dept. of · 1 pages