Limited lead-in-dust wipe sampling report, P.S. 234M, Feb 2002

NYC 9/11 Public Portal Document

Scope of Work

ATC Associates, Inc. (ATC) was retained by New York City Board of Education (NYC- BOE) to collect dust wipes to be analyzed for lead content. Dust wipe samples were collected from areas recommended by the Parents Association consultant representative Mr. Tom Fusillo of ENVIRON Corp, and approved by NYC- BOE and as specified in the sampling protocol for the school. These areas are the following:

• C floor hallway ■> • Cafeteria • Gymnasium • Auditorium • Two classrooms facing South • One classroom facing East

The purposed of the dust wipe sampling is to detennine if dust in the school contains lead. ATC will be repeating this sampling preferably every Tuesday as per the recommendation of ENVIRON Corp, and after the approval of NYC-BOE. This is the second consecutive week dust samples were collected from P.S. 234M to be analyzed for lead content after the sampling protocol is approved.

ATC’s representative Mr. Yiannis Efstatluou visited P.S. 234M located at 292 Greenwich Street, New York, NY on January 29"', 2002. Dust wipes to be analyzed for lead content were collected from the aforementioned areas indicated by ENVIRON and as specified by the New York City Board of Education Environmental Health & Safety Unit and in accordance with HUD protocols.

LEAD-IN-DUST SAMPLING

Lead-in-dust threshold levels The New York City Health Code, part 173.14 and the 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 occurred (commonly referred 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 those listed below:

For Windowsills: 250 ug/ft= For Floors; 40 pg/ft^

Although the lead-in-dust samples collected at P,S. 234M were not collected in response to lead abatement, tire same thresholds are used since no other regulations or standards are applicable to dais project.

Sampling Methodology P.S. 234M (Satc « s(oci«'e c INC February 1, 2002

CONFIDENTIAL, CITY_21MC100_003390303 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000178639