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WTC Vicinity Building Survey Proposal Background Study Data

Machine-extracted title · confidence 95%

Proposal for sampling and assessing building interiors in the vicinity of the World Trade Center site.

NYC-WTC_000149899–000149934

Folder label: “BACKGROUND STUDY DATA 11.13

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z z o WTC Indoor Alr/Environments Monitoring - Sampling and Analytical Procedures For Background and Pilot Clean up Studies o i 1^ Media Sampling Points Analytical Sampling Method Proposed Description Analytical Method Proposed co

■D o Parameters c o CT o This is a micro vacuuming method. Three collocated samples will ASTM D 5755-95 o' Settled Dust Carpets, fabric furniture or Asbestos ASTM D 5755-95 be collected from each location. ■D CD CD Porous Soft drapery in areas of activity o 3. surfaces living rooms, family rooms) This is a micro vacuuming method. Three collocated samples will SW-8466010B 03 Lead ASTM E1973-99 ^be collected from each location. o o ASTM D 6480-99 (wipe) o c Asbestos ASTM D 6480-99 Wipe Samples 3 Wipe Samples SW-846 601OB CD Lead HUD Appendix 13.1 Horizontal surfaces of Dioxins ASTM D 6661-01 Wipe Samples ASTM 6661-01/SW-846 8290 Settled Dust tables or counters and bare Non-porous PAHs ASTM D 6661-01 Wipe Samples ASTM 6661-01/SW-846 8270C floors, ceilings and walls in Hard areas of activity (living HUD Appendix 13.1" Wipe Sample collected at one location per unit No Formal Method (NIOSH 7500 Modified) surfaces Total Dust rooms, family rooms) Silica, calcite, NIOSH 7500 (XRD) HUD Appendix 13.1" Wipe Samples. All parameters will be collected on one wipe. gypsum MMVF ASTM D 6480-99 Samples will be combined with the asbestos sampling. EMSL MSD.0300

Air pump operated at lOL/min for 8 hours to achieve the COPC PCM NIOSH 7400 foHowed by TEM AHERA Asbestos NIOSH 7400 wkgroup detection limit method. Air pump operated at lOL/min for 8 hours to achieve the COPC Lead NIOSH 7300 SW-846 6010B wkgroup detection limit SW-846 8270 (Analytical method with be Air pump operated at 2Umin for 8 hours. Pitot Clean-up study only PAHs NIOSH 5515 modified to achieve the COPC wkgroup detection for worst case scenarios. Areas of known activity limit Indoor Air living rooms, family rooms) Air pump operated at 25L/min for 35 hours. This modification is not Dioxins TO-9 (Modified for indoor air) a proven method. To be conducted during the Pilot Clean-up study SW-846 8290 only for worst case scenarios. Silica, calcite, Air pump operated at 2.5L/min for 8 hours to achieve the COPC NIOSH 7500 NIOSH 7500 (XRD) gypsum ________________ wkgroup detection limits________________

MMVF NIOSH 7400 Assumed that it behaves the same as asbestos, samples will be EMSL MSD.0300 combined with the asbestos sampling. Bulk samples will be collected from HVAC or AC window typo unit Asbestos Bulk Sample filters, shaken into a plastic bag and transferred into the sample PLM NYS 198.1 foHowed by _____________________ container.______________________ TEM NYS 198.4

Lead (If the volume required is not attainable for all analysis, the sample Bulk Sample SW-846 6010B HVAC systems and AC will be analyzed for asbestos only. units (collection of bulk dust (If the volume required is not attainable for all analysis, the sample PAHs Bulk Sample SW-846 8270 Bulk Dust sample from the unit air ____________ wBI be analyzed for asbestos only.____________ . filters). Background (If the volume required is not attainable for all analysis, the sample study only. Dioxins Bulk Sample SW-846 8290 will be analyzed for asbestos only. Silica, calcite, (If the volume required is not attainable for all analysis, the sample Bulk Sample NIOSH 7500 (XRD) gypsum will be analyzed for asbestos only. (If the volume required is not attainable for all analysis, the sample MMVF Bulk Sample PLM NYS 198.1/EMSL MSD.0300 will be analyzed for asbestos only.

NOTE: " Wipe samples for silica, calcite and gypsum win be (»llected using ti e HUD Appendix 13.1 method since no standardized method Is available.

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NYC-WTC_000149914Source: NYC Law Department, mirrored locally

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