For prescribed fires and prescribed burns, a minimum distance between the fire and property of adjacent landowners shall be maintained in order to protect such property. This distance shall be determined by analyzing the prescribed fire requirements (including weather information), calculated flame spread and the sensitivity of the adjacent property. Under normal circumstances prescribed fires shall not be set or allowed to burn within 75 feet of an adjacent property. A written waiver of this limitation by owner(s) of the adjacent property shall be included in the plan, where applicable. The department may also require an expansion of the 75 foot minimum buffer, if conditions so warrant. Prescribed fires and prescribed burns shall be contained within a predetermined area and shall be managed to the greatest extent possible to avoid damage to adjacent property.