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NYC-WTC_000188540

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NYC 9/11 Public Portal Document

Mr. Bernard P. Orlan October 26, 2001 Indoor Air Quality Assessment Page 5 Stuvvesant Hiuh School (M477') ATC Project No. 15-19125-0246

RECOMMENDATIONS

Based on the findings and conclusions above, ATC recommends the following:

• Keep comfort parameters within established guidelines by using adequate ventilation; • Discontinue daily TVOC measurements; TVOCs have not been detected since daily measurements began October 9, 2001; • Ensure that the HVAC system is operating properly; • Consider upgrading the filters on the HVAC intakes; • Conduct limited follow-up monitoring/inspection to ensure that air quality is acceptable.

It is our pleasure to provide these indoor air consultative services to the New York City Board of Education. If you have any questions about this report, please call (212) 353-8280, extension 261 or 212.

Sincerely, 4 TC ASSOCIA TES INC.

James R. Cohn, CIH, CSP Regional Manager Industrial Hygiene Division

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CITY_21MC100_006797422

NYC-WTC_000188544

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NYC-WTC_000188544Source: NYC Law Department, mirrored locally

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