Do not exceed the limits for the average annual rate of addition through sewage sludge of toxic elements on grassland/forage soils

Concentrations of potentially toxic elements (PTEs) are kept below maximum permissible limits on grassland/forage soils

Maintain/improve chemical soil status

Reduce concentrations of toxic elements within forage crops

Livestock feed is free from harmful contaminants

Prevention of pain, injury and disease to livestock

Livestock are free from pain, injury or disease

Reduce deleterious impacts on livestock

Maintain / improve livestock productivity

Increase farm income

Economic viability