milk collection and transport. In the past, spoilt milk was poured into open pits, but head office managers no longer believe that this is an acceptable arrangement. The Boscomines and Manila plants are the oldest plants and they both drain waste milk into a septic system. There is no control over air borne pollutants that result from this practice. The Biwarked plant has purchased a system where all waste is reprocessed and the final waste can be used as fertilizers on wine yard. The system relies on careful monitoring of waste level. The manager of Donoock monitors the waste levels in a closed vat and waits until complete biological breakdown occurs before piping the waste onto local apple orchards. Required: 1. Which plant appears to be an environmental leader? Be specific in any assumptions you need to make. (7.5 marks) 2. Which plant appears to be the worst performing from an environmental view point? What could be done to improve this performance? (7.5 marks) 3. A Perth share analyst wishes to invest in companies that are environmentally friendly. Would you recommend Rewa Diary