type of liquid storage system designed and operated to combine waste stabilization and storage with varying lengths of storage (up to a year or greater), depending on the climate region, the volatile solids loading rate, and other operational factors
2006 IPCC Guidelines for National Green House Gas Inventories, Volume 4, Chapter 10, Table 10.18 http://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/4_Volume4/V4_10_Ch10_Livestock.pdf [23/02/2016]