NYC-WTC_000200230

NYC 9/11 Public Portal Document

AMBIENT AIR AND DUST SAMPLING PROTOCOL for PS/IS89M. Page 4 of 9

In the event, that real-time measurements of respirable particulates exceed the cited Target Guidelines, ATC shall immediately notify BOE representative Mr. Mohamed Hemida, the UFT and the PA consultant. BOE shall notify the school principal, the school custodian and the plant manager. The said parties will assess the situation and implement the appropriate response action(s) immediately.

In the event, that CO inside the school measured above the cited Target Guidelines (9ppm). ATC shall immediately notify BOE representative Mr. Mohamed Hemida, the UFT and the PA consultant. BOE shall notify the school principal, the school custodian and the plant manager. The said parties will assess the situation and implement the appropriate response action(s) immediately.

In the event that real-time measurement's) of CO inside the school is/are greater than 5ppm and less than 9ppm, BOE will identify the source and assess the situation.

In the event that real-time measurement(s) of TVOC inside the school is/are above the cited Target Guidelines (Ippm), ATC shall immediately notify BOE representative Mr. Mohamed Hemida, the UFT and the PA consultant. BOE shall notify the school principal, the school custodian and the plant manager. The said parties will assess the situation and implement the appropriate response action(s) immediately.

In the event that real-time measurement(s) of 0.5 ppm of TVOC are obtained inside the school ATC shall immediately notify BOE representative Mr. Mohamed Hemida, the LIFT and the PA consultant. BOE shall notify the school principal, the school custodian and the plant manager. The said parties will assess the situation and implement the appropriate response action(s) immediately..

ADDITIONAL TESTING

In addition to the above, once per week, preferably on Friday, sampling settled dust for fiberglass, lead, and silica; wipe sampling for dioxin and PCB and air sampting, for heavy metals, and TVOCs shall be performed as follows:

SETTLED FIBERGLASS

• First floor hallway outside cafeteria - 2 samples.

• Cafeteria - one sample.

• Gymnasium - one sample.

• Auditorium - one sample.

Classroom with north side unit ventilators - one sample immediately after the last class. Classroom with east side unit ventilators - one sample immediately after the last class.

• Classroom with south side unit ventilators - one sample immediately after the last class, t 10

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NYC-WTC_000200233