If pond systems are correctly designed and managed in order to cultivate anaerobic and aerobic bacteria and green micro-algae, then such systems would decompose waterborne organic wastes effectively and efficiently, and would help in reducing some of the problems associated with the treatment and disposal of wastewater. In addition, about 90% of the ponds in the United States are used in small communities with less than 10,000 residents and are to be very effective in wastewater treatment