Major sources of toxaphene in drinking water are runoff/leaching from a banned insecticide that was used on cotton and cattle. It is very persistent, remaining in soil for up to 14 years. It is not expected to leach to groundwater. It will not break down by microbial or other means. Though it strongly binds to soils and the sediments of water bodies, it may gradually evaporate to the air where it is slowly broken down by sunlight. Toxaphene has a high potential to accumulate in aquatic life.
A federal law called the Emergency Planning and Community Right to Know Act (EPCRA) requires facilities in certain industries, which manufacture, process, or use significant amounts of toxic chemicals, to report annually on their releases of these chemicals. For more information on the uses and releases of chemicals in your state, contact the Community Right-to-Know Hotline: (800) 424-9346.