Any entity looking to bring soil including top soil to the Loudoun County Landfill (as waste disposal or importation) must fill out... More… Any entity looking to bring soil including top soil to the Loudoun County Landfill (as waste disposal or importation) must fill out this form. Submission does not mean the material is accepted. Please allow for 48 hours of review before you are contacted. Additional information and certain conditions may be required.Less…