NYC-WTC_000200056

NYC 9/11 Public Portal Document

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Taylor environimeimtal grour inc. R Stuyvesant High School Chambers Street, New York, NY SCA Project #:M477-15217, LLW#: 29881

Auditorium Carpet Removal / Chair Upholstery Cleaning Protocol Revised August 23, 2002 Revision #2 R 1. Shut down the heating, ventilation, and air-conditioning (HVAC) system(s) for the auditorium.

2. Attached personal/waste decontamination unit(s) will be constructed and located at the main entrance (s) to the auditorium (work area). Full enclosure(s) shall be constructed to enclose all carpeted floor surfaces within the auditorium. The full enclosure(s) shall be constructed using a framework consisting of 2inch x 3 inch. studs. (36 inch. O.C.) lined with 2 layers of 6-mii plastic sheeting.

3. Negative pressure ventilation equipment will be installed inside the full enclosure(s) in order to establish a minimum static negative-pressure differential of 0.02 inches water column.

4. All penetrations that can be reached using an 8 foot ladder (such as windows, doorways, supply air diffusers, return air grilles, etc.) shall be sealed with 2 layers of 6-mil plastic sheeting sealed with tape.

5. A thorough visual inspection will be performed by a third party consultant to verify that all required engineering controls are in place and working correctly.

6. Clean the chair upholstery and associated floor surfaces twice using HEPA filtered vacuum equipment.

7. After the chair upholstery and associated floor surfaces have passed a thorough visual inspection, all seating systems shall be covered with two layers of 6-mil

c plastic sheeting and sealed with tape.

8. All carpeted floor surfaces within the full enclosure(s) shall be saturated with an approved lock-down encapsulant and then covered with two layers of 6-mil plastic sheeting sealed with tape.

9. The plastic covered carpet shall be continually misted with amended water while it is being cut into manageable sections and rolled up. When a section of carpet has been rolled up, it shall be misted with amended water ands sealed with two layers of 6-mil plastic sheeting. The sealed carpet section shall be transported to the

I ! 130A JERICHO TPKE., FLORAL PARK, NY 11001- PHONE (516) 358-2955 ■ FAX (516) 358-1780

CITY_21MC100_001825040 NYC-WTC_000200059