Minor amendments. Minor amendments to a previously approved site plan may be approved by the Commission or its agent, provided said amendments do not materially alter the overall character, quality, density or intensity, uses, amenities, parking or other major features of a site plan as approved. Minor changes shall include, but are not limited to, slight relocation of paved areas, utilities, landscaped areas, lighting and other site features because of unforeseen topographic or other field conditions.