Adelaide's local councils provide waste bins (general waste and recycling) to residents. Waste bins are emptied by waste collection vehicles and the contents taken to a transfer station. There are fourteen medium to large scale transfer stations operating in the Adelaide metropolitan area (SA, 1999). After sorting and processing in the transfer station, waste is sent to landfill. South Australia has a long and successful history of implementing Container Deposit Legislation (CDL), which began in 1977. CDL captures a broad range of beverage containers up to 3 L that contribute to the litter stream, such as drink containers (flavoured milks, juice, water, soft drinks, beverage bottles and so on.) and excludes plain milk and wine in glass containers. A total 124 approved collection depots are operated state-wide, 40 in the Adelaide metropolitan region and 84 in regional South Australia, for the return of packaging containers. A 10 cent refund is paid for every container, which is why informal waste recyclers are playing an important role in recycling bottles and plastic containers from roadsides and public parks' waste bins. There is no specific law whether informal waste picking in South Australia is legal or prohibited, rather, informal waste picking has been treated as a source of secondary income and is favourable to the CDL programme. Fig. 1 shows an example of such informal waste recycling in Adelaide.