Consider the presence of radionuclides in biosolids. There are municipal waste treatment facilities particularly in the District of Columbia (DC) that have no holding capacity, i.e . biosolids are transported off site the same day that they are produced. There are several major medical facilities in DC performing numerous nuclear medicine procedures and research using radioisotopes. These materials may legitimately be discharged to the sanitary sewer. Although most of these radioisotopes have short half lives of hours or a few days, they are nevertheless detectable for a week or so. Most municipal facilities can hold material for 30 days or more. Usually the biosolids are disposed on agriculture fields; however, if it is raining or the fields are muddy, the biosolids go to the landfill. Some landfills have radiation monitoring systems to prevent illegal dumping or radioactive sources. So some effort may be required to resolve the situation.