Abstract:
Samarinda is an urban area and the capital of East Kalimantan province, Indonesia. Karang Mumus River through the city of Samarinda and there are many settlement along the riverbank. Many socio-economic activities and societies are multi cultural. This research is purposed to investigate the spatial distribution of Fecal Coliform Bacteria base on its contents in Karang Mumus River, Samarinda. The methods used are observation, water sampling and laboratory test. The result is Fecal Coliform Bacteria content between 340 MPN/100mL and more than 1,600,000 MPN/100mL, exceeded the standard 1000 MPN/100mL base on Government Regulation in East Kalimantan (Perda Kaltim) No. 2/ 2011 about Management of Water Pollution. The highest contaminant of Fecal Coliform happened in urban area along the river. Its influence by many people living on the riverbank and defecating to the river. Average content of Fecal Coliform 2012-2016 in downstream is much bigger than upstream. Population in the downstream is more than upstream, especially many settlements on the riverbank in downstream area. Activity of slaughtering chickens on the market downstream and throwing their droppings directly into the river give impact Fecal Coliform increase. Livestock manure has a higher impact on the increasing Fecal Coliform content compared to the population. The solution is to treat wastewater communally by wastewater treatment plant and community assistance to instill clean and healthy living behavior
