Gravel and sand pits are sites where naturally occurring deposits of sand and gravel are extracted for use as construction materials and in other industries. The material is won from dry or waterlogged deposits, then processed to remove unwanted soil and debris. It may be washed, screened and graded into different sizes, with some sites also crushing or blending aggregates to meet particular specifications. Products commonly include building sand, sharp sand, ballast, gravel and graded stone used in concrete, mortar, drainage, foundations, road building and landscaping. Businesses in this category may supply loose or bagged materials, and some arrange delivery to construction sites or other customers. Operations can also involve managing stockpiles, water and site traffic, followed by restoring worked areas when extraction is complete. Reinstatement may include shaping the land, creating habitats or preparing it for another approved use.