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the South Coast Air Basin. Contract specifications shall be included in project construction <br /> documents, which shall be reviewed by the City of Santa Ana prior to issuance of a grading <br /> permit. (Impact 4.2-5) <br /> MM4.2-10 Project applicants shall require by contract specifications that construction <br /> equipment engines be maintained in good condition and in proper tune per manufacturer's <br /> specification for the duration of construction. Contract specifications shall be included in <br /> project construction documents, which shall be reviewed by the City of Santa Ana prior to <br /> issuance of a grading permit. (Impact 4.2-5) <br /> MM4.2-11 Project applicants shall require by contract specifications that construction <br /> operations rely on the electricity infrastructure surrounding the construction site rather than <br /> electrical generators powered by internal combustion engines to the extent feasible. Contract <br /> specifications shall be included in project construction documents, which shall be reviewed by <br /> the City of Santa Ana prior to issuance of a grading permit. (Impact 4.2-5) <br /> MM4.2-12 As required by South Coast Air Quality Management District Rule 403—Fugitive <br /> Dust, all construction activities that are capable of generating fugitive dust are required to <br /> implement dust control measures during each phase of project development to reduce the <br /> amount of particulate matter entrained in the ambient air. These measures include the <br /> following: <br /> o Application of soil stabilizers to inactive construction areas. <br /> o Quick replacement of ground cover in disturbed areas. <br /> o Watering of exposed surfaces three times daily. <br /> o Watering of all unpaved haul roads three times daily. <br /> o Covering all stock piles with tarp. <br /> o Reduction of vehicle speed on unpaved roads. <br /> o Post signs on-site limiting traffic to 15 miles per hour or less. <br /> o Sweep streets adjacent to the project site at the end of the day if visible soil material is <br /> carried over to adjacent roads. <br /> o Cover or have water applied to the exposed surface of all trucks hauling dirt, sand, soil, <br /> or other loose materials prior to leaving the site to prevent dust from impacting the <br /> surrounding areas. <br /> o Install wheel washers where vehicles enter and exit unpaved roads onto paved roads to <br /> wash off trucks and any equipment leaving the site each trip. (Impact 4.2-5) <br /> MM4.2-13 The developer shall require by contract specifications that construction-related <br /> equipment, including heavy-duty equipment, motor vehicles, and portable equipment, shall be <br /> turned off when not in use for more than 30 minutes. Diesel-fueled commercial motor vehicles <br /> with gross vehicular weight ratings of greater than 10,000 pounds shall be turned off when not <br /> in use for more than 5 minutes. Contract specifications shall be included in the proposed <br /> project construction documents, which shall be approved by the City of Santa Ana. (Impact <br /> 4.2-5) <br /> MM 4.2-14 The developer shall require by contract specifications that construction parking be <br /> configured to minimize traffic interference during the construction period and, therefore, reduce <br /> idling of traffic. Contract specifications shall be included in the proposed project construction <br /> documents, which shall be approved by the City of Santa Ana. (Impact 4.2-5) <br /> January 2025 29 Environmental Analysis <br /> Resolution No. 2026-023 <br /> Page 29 of 65 <br />