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This publication for lagoon managers and operators describes how to carry out a sludge survey and discusses sludge depth measurement, volume determination, and nutrient sampling. It draws upon and supplements the information in another publication on sludge management in anaerobic lagoons: Sludge Management and Closure Procedures for Anaerobic Lagoons (AG-604).
Anaerobic swine lagoon sludge sampling allows operators to determine the nutrient concentration in the sludge through laboratory analysis. This publication provides information about different options for sampling sludge in these lagoons.
