For frequently used livestock pens, these systems collect feedlot runoff, settle out manure solids, and direct the remaining runoff water through filter strips, and away from streams, ditches, waterways and areas of permeable soils and fractured bedrock. Figure 1 shows a typical livestock feedlot runoff control system for an open lot surface. Return to Table of Contents . C. Feedlot Cleaning or Scraping Clean feedlot and pen surfaces regularly. Cleaning or scraping at least once per week is preferable.
Concrete surfaces are easier to clean than earthen lots.
Earthen yards are not recommended in Virginia, but may be cleaned when dry, which will result in less frequent removal of solids. Return to Table of Contents . The area needed per animal to minimize the risk of groundwater contamination depends on the type of lot surface. The amount of concrete surface area needed is much less than that required for an earthen lot. The concrete area needed is a balance between traffic on the lot and the resting area provided for animals.