NYC-WTC_000199333

NYC 9/11 Public Portal Document

were 104 East 25th St.. 10th Fl New York, New York 10010 www.atc-enviro.com 212.353.8280 Fax 212.353.8306 ASSOCIATES INC.

September 5, 2002

Mr. Bernard P. Orlan New York City Department of Education Director, Environmental Health & Safety Unit 28-11 Queens Plaza North Long Island City, NY 111 01

Re: Limited settled dust bulk sampling for fiberglass at P.S. 42M 71 Hester Street New York, New York ] 0002

Dear Mr. Orlan: i I'

At your request, ATC Associates, Inc. representative Mr. Mark Nakhumovich visited P.S. 42M located at 71 Hester Street, New York, NY 10002 on September 4, 2002. The purpose of the site visit was to perform a settled dust bulk sampling to be analyzed for fiberglass fiber content on areas indicated to ATC by the New York City Department of Education (NYC-DOE). These areas are the following:

• U* Floor Lobby • Cafeteria • 1 Floor, 2"“ Floor, 3'*^ Floor, 4'” Floor, 5* Floor Hallway • Auditorium • Two random classrooms

The purpose of the dust bulk sampling is to determine if settled dust in the school contains fiberglass fibers.

As per your request, a o:al of ten (10) settled dust bulk samples were collected from the aforementioned areas and were analyzed utilizing Polarized Light Microscopy (PLM).

Analytical results indicated that none of the ten (10) collected settled dust bulk samples contain fiberglass fibers.

The settled dust bulk s: mpling performed was limited to testing for fiberglass in locations indicated by the NYC-DC)E.

Attached please find the following:

CITY_21MC100_003049159

NYC-WTC_000199333