The production of unwanted by-product or waste of all man’s activities is a characteristic of mankind, and inevitable in modern society. Thus, river ecosystems will continue to deteriorate unless they are managed in a sustainable way
[5]. The pollution of rivers by human induced activity is now becoming a threat to water resource and its biodiversity. In South Africa environmental pollution problems started during the first half of the 19th century, with the development of towns and industries and associated accumulation of wastes in built-up areas. The Crocodile River catchment is recognized as one of the most water-stressed catchments in South Africa, a major concern considering the increased number of people who depend on it for their livelihood, including a large demand for water by emerging farmers [6].