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Grading, Excavation, and Drainage o The design objectives for parcel grading are to create smooth slope transitions between adjacent parcels and proposed improvements, eliminate abrupt or unnatural Iandforms, and promote positive surface drainage. Proposed grading schemes will be examined during the individual design review process on a project by project basis. o Off-site grading shall not be permitted. Each site must meet existing grade conditions at property and/or lease lines. O Concentrated drainage across walkways and other pedestrian areas is not permitted. Drainage across driveway entries is to be avoided. • Where feasible, integrate storm water treatment features into on-site open space. Utility, Solar, Electrical, and Mechanical Equipment • All ground, building, or roof -mounted electric, gas, mechanical units, and similar devices must be properly located to avoid unsightliness or potential safety problems, and must be properly screened. Such equipment should be located and screened in a manner compatible with the design of the building and site improvements. o No heating, air conditioning, electrical, or other equipment may be installed on the roof of any building or structure unless screened with materials compatible with the predominant exterior building material. All ground equipment should be located a minimum of 25 feet from all public streets, 5 feet from any sidewalk, and shall be screened accordingly. o No transformer, electric, gas, meter of any type or other apparatus shall be located on any power pole or hung on the outside of any building, except where specially approved by the City. The screening of all exterior mounted equipment should be compatible with the exterior building materials. • Utility layouts and connection points are part of the design review process. All permanent utility lines shall be installed underground. No overhead wiring is permitted. o Passive heating and cooling design features (e.g., shading devices to reduce sun exposure) and building design that can accommodate solar collectors and other alternative energy systems are required.