The person receiving the material is potentially liable for any contamination caused by that material. Make it a point to always know what you are accepting. Examine the contents of each load before it is dumped. If the material has too many contaminants or if it is not as was promised, do not allow the material to be unloaded. Once you accept delivery of the material there is no further incentive for the company to provide you with any information.
Companies usually try hard to reduce any risks once identified.
However, company personnel frequently lack the experience and knowledge needed to assess the waste for use as livestock bedding. It is important to ask for information on how the waste material you accept was produced, handled, stored and transported. Try to assess the risks at each stage for potential contamination. Consult experts who know the manufacturing process and experts that can help assess the animal risk. For cropping issues, contact a Soil and Crop Advisor with your local Ministry of Agriculture, Food and Rural Affairs office.