rt/Export Limits. Earth import and export activities may take place only between the hours of 9:00 a.m. and 3:00 p.m., Monday through Friday. The maximum quantity of earth import or export shall be limited to the following quantities: (i) Lots Fronting on Standard Hillside Limited Streets or Larger. For a property which fronts onto a Standard Hillside Limited Street or larger, as defined in Section 12.03 of this Code, the maximum quantity of earth import and export combined shall be no more than the maximum “by-right” grading quantities as listed in Table 12.21 C.10-6 above. (ii) Lots Fronting on Substandard Hillside Limited Streets. For a property which fronts onto a Substandard Hillside Limited Street, as defined in Section 12.03 of this Code, the maximum quantity of earth import and export combined shall be no more than 75 percent of the maximum “by-right” grading quantities as listed in Table 12.21 C.10-6 above. (iii) Exempted On-Site Grading Activity. Earth quantities which originate from, or will be utilized for any exempted Grading activity listed in Subparagraph (3) of this Paragraph (f) shall be exempted from the maximum import and export quantities set forth in this Paragraph (f). A plan indicating the destination and/or source (i.e., exempted Grading activity or non-exempted Grading activity) of any import and/or export shall be submitted as part of a Grading permit application. (3) Exemptions. The Grading activities outlined in the sub-subparagraphs below shall be exempt from the Grading and/or earth transport limitations established in Subparagraphs (1) and (2) of this Paragraph (f). However, any excavation from an exempted activity being used as Fill, outside of a 5-foot perimeter from the exempted Grading activities, for any other on-site purpose shall be counted towards the limits established in Subparagraph (1) of this Paragraph (f). (i) Cut and/or Fill for deepened foundation systems (such as caissons and piles), water storage tanks, required stormwater retention improvements, and required animal keeping site development that do not involve the construction of any freestanding retaining walls. (ii) Cut and/or Fill, up to 500 cubic yards, for driveways to the required parking or fire department turnaround closest to the accessible Street for which a Lot has ingress/egress rights.