Chain of custody form for air monitoring, 385 South End

NYC 9/11 Public Portal Document

2.0 Executive Summary retained to perform bulk sampling, visual assessments ALC Environmental Incorporated (ALC) has been s according to the EPA Protocol to determine the presence of asbestos at the above & air monitoring referenced project. Every apartment in the building was assessed by our inspectors for dust and debris. where visible dust and debris was found, ALC's inspectors took a sample, which was then sent to Any area most cases there was insufficient debris to sample and a third party independent laboratory for analysis. In analvzed were found to be below the permissible a visual assessment only was performed. All samples limits for asbestos.

and analysis was done ALC then collected TEM samples on every floor in the building. The air sampling Federal, State and City Regulations pertaining to asbestos to include Federal OSHA (29 utilizing applicable EPA NESHAPS (40 CFR PART 61), AND TSCA TITLE II AHERA/ASHARA (40 CFR CFR 1926.58) 763) Asbestos Regulations; the New York State Department of Labor Industrial Code Rule 56 and PART Regulations. the New York City Department of Environmental Protection Title 15 Asbestos

and The air samples were collected by Americo Rodriguez Jr.,a licensed project monitor (AH# 89 07160) (AH 01-03528 ) . The visual assessment and bulk samples P were ~ .. A.B. Blake a licensed sampling technncnan collected by, A.R. Blake a NY State Asbestos Inspector (AH#00-08397) and Americo Rodriguez, a NY State Asbestos Inspector (AH#89-07160)"

ATC Associates (ELAP #10879) analyzed the samples using the Transmission Electron Microscopy (TEM) Methodology. The results indicated that the living areas achieved the acceptance criteria below <70 structures per mm2 set by the above regulations.

3.0 Definitions

Air Sampling: Process of measuring the fiber content of a known volume of air collected during a specific the period. The procedure utilized for asbestos follows the NIOSH Standard Analytical Method 7400, or provisional transmission electron microscopy methods developed by the US EPA which are utilized for lower detection levels and specific fiber identification.

Asbestos: Any hydrated mineral silicate separable into commercially usable fibers, including but not limited to chrysotile (serpentine), amosite (cumingtonite-grunerite), crocidolite (riebeckite), tremolite, anthophyllite and actinolite.

Asbestos-Containing Material (ACM): Asbestos or any material containing more than one-percent asbestos.

collected Clearance Air Monitoring: Employment of aggressive sampling techniques with a volume of air to determine the airborne concentration of residual fibers and shall be performed as the final abatement activity.

ELAP: Environmental Laboratory Approval Program administered by the New York State Department of :.k Health. a ~x ;

NYC-WTC 000117670