Air sampling for lead report, PS 89M, Feb 2002

NYC 9/11 Public Portal Document

wrc ASSOCIATES INC. 104 East 25th St New York, New York 10010 www.atc-enviro.com 212.353.8280 Fax 212.353.8306

February 28, 2002

Mr. Bernard P. Orlan Director, Environmental Health and Safety New York City Board of Education 28-11 Queens Plaza North Long Island City, NY 11101

Re: Air Sampling for Lead P.S./I.S. 89M ATC Project No. 15-19125-0297

Dear Mr. Orlan:

ATC Associates, Inc. (ATC) is pleased to provide this report of the results of air samples for lead collected on February 22, 2002, at the referenced school. The New York City Board of Education (BOE) requested this sampling to determine ambient air lead concentrations inside and outside the school.

Scope of Work

ATC collected ten (10) samples for metals at specified locations. Samples were collected for twelve (12) hours using 37 mm mixed cellulose ester filters connected to electric sampling pumps at a flow rate of 10 liters per minute. Pumps were calibrated before and after each sampling period. Seven (7) samples were collected inside the building and three (3) were collected in the playground (north and south end) and the roof central area. Two (2) blanks sample were also submitted. The samples were analyzed by ATC’s American Industrial Hygiene Association- accredited laboratory in New York City. Analysis was performed by NIOSH Method 7082. A copy of the laboratory report is attached.

The sampling locations v/ere as follows:

• Cafeteria (Northeast quadrant); • Floor Hallway Outside Cafeteria; • Playground North End; • Playground South End; • 2"^ Floor Auditorium Room 217 rear Walkway; • 3"* Floor Gym Room 315 -West quadrant near outlet; • 5* Floor South End Hallway; • 4* Floor South End Hallway; • 2"“ Floor South End Hallway; • Roof - Central Area.

CONFIDENTIAL, CITY_21MC100_003423054 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000175969