Treated sewage effluent as a water source for prairie marshes / Herb Moulding.

The discharge of municipal and industrial sewage into natural water bodies is in common practice throughout Western Canada. The use of sewage effluent for the creation of marshes is a new concept. Such marshes would provide a means of effluent disposal as evaporate; they would also serve as a filter to improve the quality of the effluent being discharged into the streams or a combination of both. On the prairies the yearly net loss of water averages approximately 18 inches in the grassland region, 10 inches in the parklands and 5 inches in the forested areas. This loss of evaporate can serve as a means for disposing of effluent and at the same time effluent can serve as another source of water for creation of marshes. At present, second stage lagoons are used extensively by migrating waterfowl; effluent marshes with ample nesting cover should also be very productive of waterfowl.The purpose of Investigation is 1. To determine the environmental impact of using treated sewage effluent