No lumber, metals, bulk materials, refuse or trash shall be kept, stored or allowed to accumulate on any Lot, except (i) building material during the course of construction of any approved Structure, and (ii) firewood, which shall be cut and neatly stored at least six (6) inches off the ground and twelve (12) inches away from any wooden Structure. No burning of trash shall be permitted on any Lot. Trash shall be disposed of in metal or plastic trash cans covered by a lid. If trash or other refuse is to be disposed of by being picked up and carried away on a regular and recurring basis, closed or covered containers only may be placed in the open on any day that a pick-up is to be made at such place on the Lot as to provide access to persons making such pick-up. At all other times such containers shall be stored in such a manner so as not to be visible from the roadway or the other Lots or Common Area.
(Declaration of Covenants and Restrictions, Article IV, Paragraph 18)