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37. <br /> <br />The vibration conditions shall be monitored offsite by a certified acoustical engineer, <br />at a point deemed appropriate by the project geologist at the start of pile-driving and <br />thereafter when pile-driving would occur in close proximity to adjacent or nearby <br />structures, and sensitive receptors. The monitoring shall be accomplished using <br />portable seismograph equipment capable of detecting and recording three-dimensional <br />vibrational characteristics. Such monitoring can be accomplished directly on adjacent <br />structures and can detect vibrations well below the threshold of potential structural <br />damage identified by the project geologist. If structural damage from pile-driving <br />operations adversely affect the structural integrity of surrounding structures both onsite <br />and offsite, alternative methods of construction would be required to minimize the <br />potential risk of damage. <br /> <br />Timim, of Implementation <br /> <br />During project construction <br /> <br />Method of Verification <br /> <br />Field inspection and written <br />verification from a certified <br />acoustical engineer <br /> <br />Responsible Parties <br /> <br />Certified Acoustical Engineer; <br />Geological Engineer; <br />Environmental Coordinator, <br />Planning Division; Building <br />Inspector <br /> <br />Long-Term Traffic Noise Impacts <br /> <br />38. (9) <br /> <br />If vehicular noise levels exceed 65 CNEL in onsite outdoor noise sensitive use areas, <br />mitigation measures shall be implemented. Mitigation may include the design and <br />construction of a noise barrier (wall, berm, or combination wall/berm). <br /> <br />Timint, of Implementation/Verification <br /> <br />Annual report submitted to City <br />after completion of Phase I <br /> <br />Method of Verification <br /> <br />Architectural plans check and <br />field inspection <br /> <br />Responsible Parties <br /> <br />Environmental Consultant, Case <br />Planner, Environmental <br />Coordinator, Planning Division, <br />or Certified Acoustical Engineer <br /> <br />SB3/S:11340001 .MM A- 18 <br /> <br /> <br />