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NYC-WTC_000200230

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000200230–000200238
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NYC 9/11 Public Portal Document

AMBIENT AIR AND DUST SAMPLING PROTOCOL for PS/IS89M. Page 6 of 9

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

• First floor (Throughout) - Additional minimum of five (5) samples within classrooms where present. One sample shall be collected within every Pre-K and Kindergarten classroom where present.

• Second floor Hallways south end - one sample immediately after the last class.

Second floor Classrooms - Additional minimum of five (5) samples within classrooms where present. One sample shall be collected within every Pre-K and Kindergarten classroom where present.

• Third floor Classrooms - Additional minimum of five (5) samples within classrooms where present One sample shall be collected within every Pre-K and Kindergarten classroom where present.

• Fourth floor Hallways south end - one sample immediately after the last class.

Fourth Floor Classrooms - Additional minimum of five (5) samples within classrooms where present. One sample shall be collected within every Pre-K and Kindergarten classroom where present.

• Outside Playground - three samples on playground surface after last class.

• Exterior Building Entrances - one sample on ground at exterior of north and south entrances to the school.

All dust wipe samples taken shall be analyzed in accordance with EPA7082 method via Flame Atomic Absorption (FAA).

Dust wipe results shall be considered satisfactory when the levels obtained are below the j . EPA new levels for clearing a work area for re-occupancy after an EPA defined lead abatement is performed, as specified in 40 CFR §745.227(e)(8)(viii).

Floors: 40 micrograms of lead per square foot Window Sills: 250 micrograms of lead per square foot Exterior Concrete or Rough Surfaces: 800 micrograms of lead per square foot

Dust wipe results shall be considered unsatisfactory when the levels obtained are greater than the EPA new levels for clearing a work area for re-occupancy after an EPA defined lead abatement is performed, as specified in 40 CFR §745.227(e)(8)(viii).

Floors: 40 micrograms of lead per square foot Window Sills: 250 micrograms of lead per square foot Exterior Concrete or Rough Surfaces; 800 micrograms of lead per square foot

Results from samples collected shall be reported to BOE, UFT, School Principal and the PA consultant within 24 hours.

CITy_21MC100_003267275

NYC-WTC_000200235

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NYC-WTC_000200235Source: NYC Law Department, mirrored locally

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