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Table N-6 Noise Levels at Project Construction Sites (dBA Leq) Construction Building 74 83 Construction Finishing and Site 74 87 Cleanup Construction of the proposed project would not be expected to use large quantities of construction equipment. The addition of the convenience store, car wash and walls would primarily be constructed by hand with possible use of a backhoe for building footings. Consequently, noise levels generated from project construction would be expected to generate those noise levels listed under the minimum required equipment in use. As such, noise levels may intermittently range from 74-82 dBA Leq at the nearest noise sensitive use, which are the condominiums to the south of the project site. To reduce potential construction related noise impacts to a level that would be less than significant the proposed project would be required to comply with the City's Noise Ordinance by limiting the hours of construction activity from 7:00 AM to 8:00 PM Monday through Saturday and no construction activity on Sundays and Federal Holidays. Mitigation Measure . Construction plans for the proposed project shall reflect that construction operations would be limited to 7 AM to 8 PM Monday through Saturday, and not permitted on Sundays or Federal Holidays. E. For a project located within an airport land use plan or where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? Less Than Significant Impact The Airport Environs Land Use Plan for Orange County establishes policies and standards to protect the public from the adverse effects of aircraft noise. The Airport Environs Land Use Plan establishes two Noise Impact Zones around the vicinity of John Wayne Airport. Noise Impact Zone 1 is areas where the CNEL is greater than 65db CNEL. 30 31A-63 35 of 85