15 shared non-person entities · 1 shared topics · similarity 0.994
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NYC-WTC_000234651
Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000234651–000234658Page image
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OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
AMBIENT AIR AND DUST SAMPLING PROTOCOL for PS/IS89M. Page 5 of 8
• 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.
• Second floor Hallways south end - one samples immediately after the last class.
• Fourth floor Hallways south end - one samples immediately after the last class.
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 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
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
Results from samples collected shall be reported to BOE, LIFT, School Principal and the PA consultant within 24 hours.
In the event that unsatisfactory results are obtained, the following actions are to be implemented:
1. Perform general dust clean up of all areas/classrooms with unsatisfactory results. 2. Lead specific cleaner shall be utilized. 3. Re-test said areas following clean up. 4. Floor mats and/or other dust control devises shall be placed at points of entry. Actions 1,2 and 3 shall be repeated until satisfactory results are obtained.
SILICA
• First floor hallway outside cafeteria - 2 samples.
CITY_21MC100_009363867
NYC-WTC_000234655
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NYC-WTC_000234655Source: NYC Law Department, mirrored locally
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