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nnovctive <br /> onstruction <br /> olutions <br /> 4 . 3 CONTAMINANT HAZARD SUMMARY <br /> Contaminants of concern ( CDCs ) have been established for the site and are based on the Site Characterization data provided in <br /> the contract documents . Known contaminants are listed on Table 4- 3 <br /> w <br /> Table 4-3 <br /> Known Contaminants <br /> Contaminant Maximum Location Onsite / Site Action Level Monitoring Monitoring <br /> Concentration Area of Concern Instruments Protocol <br /> k <br /> 1 . Asbestos TBD In the canopy >1 fiber ❑ Visual ❑ Confined space <br /> ❑ Odor ❑ Continuous <br /> ❑ 1-125 Meter ❑ Intermittent <br /> ❑ 4 Gas Meter ❑ Breathing Zone <br /> ❑ Personal Air Monitor ❑ Work Area <br /> ❑ PID ❑ Perimeter- Up/Down <br /> ❑ Dust Meter Wind <br /> ® N/A O N/A <br /> 2. TPH-g TBD UST 0-10 ppm Level D ® Visual ❑ Confined space <br /> 10-50 ppm Level C ® Odor ® Continuous <br /> >50 ppm contact HSP ❑ 1-125 Meter ❑ Intermittent <br /> ❑ 4 Gas Meter ❑x Breathing Zone <br /> ❑ Personal Air Monitor ❑x Work Area <br /> ® PID ❑ Perimeter- Up/Down <br /> ❑ Dust Meter Wind <br /> ❑ N/A ❑ N/A <br /> 41 <br />