Overflowing latrines and open defecation pollute water sources that are an important resource to downstream users and the widespread environmental contamination caused by illegal dumping of untreated pit latrine sludge destroys natural ecosystems The Society of Environmental Engineers, is a professional Society which exists to promote awareness of the discipline of environmental engineering, and to provide members of the Society with information, training and representation within this field The Society publishes the quarterly Journal 'Environmental Engineering' which features technical papers on research, development, instrumentation, review articles and other technical news and information It demonstrates high standards of professional practice, knowledge, competence and engagement, and is recognised by employers as the test of professionalism in sustainable and environmental management