NYC-WTC_000211812

NYC 9/11 Public Portal Document

Scope of Work

ATC Associates, Inc, (ATC) was retained by New York City Boai'd of Education (NYC- BOE) to collect dust wipes to be analyzed for lead content. Dust wipe samples were collected from areas recommended by the NYC- BOE and as specified in the sampling protocol for the school. These areas are the following:

• floor lobby • Cafeteria • Two random classrooms • Auditorium • 3"* floor hallway • 5* floor hallway • 7* floor hallway • 9‘" floor hallway • 13"’floor hallway

The purposed of the dust wipe sampling is to determine if dust in the school contains lead. ATC will be repeating this sampling every Friday as per the recommendation of NYC-BOE. This is the fourth consecutive week that dust samples were collected from High School for Leadership & Public Ser\'ice (M894) to be analyzed for lead content.

ATC’s representative Mr. Yiannis Efstathiou visited High School for Leadership .& Public Service (M894) located at 90 Trinity Place, New York, NY 10006 on March 1’*, 2002. Dust wipes to be analyzed for lead content were collected from the aforementioned areas indicated to ATC by the New York City Board of Education Environmental Health & Safety Unit and in accordance with HUD protocols.

LEAD-IN-D UST SAMPLING

Lead-in-dust threshold levels The New York City Health Code, pail 173.14 and die Federal Departments of Housing and Urban Development (HUD) and Environmental Protection Agency (EPA) have established acceptable lead-in-dust levels for re-occupancy after a lead abatement has occuned (commonly refeired to as “final clearance” levels). As stated in the Code, final clearance after abatement has taken place is achieved when dust wipe samples indicate lead levels below tiiose listed below:

For Windowsills: 250 pg/ft^ For Floors: 40 pg/tf

Although the lead-in-dust samples collected at High School for Leadersliip & Public Service (M894) were not collected in response to lead abatement, the same thresholds are. used since no other regulations or standards are applicable to this project.

High School for Leadership c& Public Sendee (M894} March 4, 2002

CITY_21MC100_000461498 NYC-WTC_000211813