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← Document results/DEP Box 46/385 345 SOUTH END AV 1083376, 16/100
Document / 27 pages

HVAC inspection letter, 385 South End Ave, Dec 2002

Machine-extracted title · confidence 100%

Letter from Environmental Services Inc. to the EPA regarding HVAC and environmental inspections performed at 385 South End Avenue in November 2002.

NYC-WTC_000117634–000117660

Folder label: “385 345 SOUTH END AV 1083376, 16/100

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NYC 9/11 Public Portal Document

WTC Residential Study 385South End Avenue EMSL Billing # 040217975 Quarfz Cristo Tridymite Gypsum Calcite Porf/andite mg mg mg mg mg m9 1 05368-305.559 0.120 <DL <Dl. 0.010 <DL <DL 2 35568.305.560 0.104 <DL <DL 0.045 <DL <DL

Reference True Value 0.026 0.060 0.060 0.010 0.020 0.050 Measured 0.024 0.061 0.090 0.007 0.029 0.036

Peak Areas Quartz Cristo Tridymite Gypsum Calcite Pwilandite Primary Primary Primary Primary Primary Primary 1 05566.305.559 594.9 0.0 0.0 402.9 92.6 0.0 2 05666.305.560 516.5 0.0 0.0 1892.4 106.4 0.0

Reference 118.0 574.4 521.5 300.3 299.6 114.3 Corrected 124363.5 2.412283 slope 4.953 9.3758 5.8028 41.603 10.312 3.1625 Equations for obtaining mass of a phase (rig) from Peak Area (if that phase is

assumed to he present.

Alpha Quartz (Primary) ug - (Peak Area) /4.953 DL = S ug

Cristobailte (Primary) ug = (Peak Area) /9.3758 DL = 20 ug

Tridymite (Primary) ug a (Peak Area) /5.8028 DL = 20 uq

Gypsum (Primary) ug = (Peak Area) /41.603 DL =10 ug

Calcite (Primary) ug = (Peak Area) / 10.312 DL = 20 ug

Portiandite (Primary) ug = (Peak Area) /3.1625 DL = 20 ug

NYC-WTC 000117658

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NYC-WTC_000117658Source: NYC Law Department, mirrored locally

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