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Asbestos Abatement Guidelines and Policies <br />Page 01410-4 <br />iv. If TWA samples are being collected by the contractor for the <br />purpose of reducing respiratory protection requirements, the <br />industrial hygiene firm shall directly observe the conditions and <br />work practices represented by each sample and make <br />appropriate notes in the bound book on site. The SAM shall <br />review all TWA air sampling results which are used for reducing <br />respiratory protection requirements before accepting the <br />results. <br /> <br />E. Supplemental air monitoring may be conducted inside and outside the work area by the <br />HHCU. This supplemental sampling does not fulfill air monitoring responsibilities <br />required by OSHA, EPA, or this contract. <br /> <br />F. For this project, due to potential dust and fiber levels from outside the work area, <br />prevalent air samples will be conducted prior to the asbestos contractors’ arrival to the <br />site. <br />DocuSign Envelope ID: 09980A3B-0691-41B4-854D-3865F2287392