The United States Department of Agriculture (USDA) offers a 4-day training course on “Liner Design for Animal Waste Containment.” The course discuses compacted clay liners, chemical dispensers and bentonite, soil liner treatment with soil additives, flexible geosynthetic liners, geomembranes (HDPE, LLDPE, PVC) and geosynthetic clay liners (GCLs). The core reference material for the course is: Appendix 10D, Chapter 10 Agriculture Waste Management Field Handbook. Learn more.