Abstract:
Estuary of Karang Mumus River is Mahakam River that used for drinking water substance inaroundSamarinda Province East Kalimantan. There are communities live along floodplain areaand use water in the river for daily activities as the bath, washing, and privy. Karang MumusRiver through the urban area with complicated activities. Domestic waste content in KarangMumus River come from the communities activities. It content nutrition as Phosphate andNitrate reason booming algae in the tributary. It happens to impact the water pollution sinceless Dissolved Oxygen (DO). Purpose this research is analysis distribution of Phosphate andNitrate in Karang Mumus River. The method used surveys as observation, water sampling, andlaboratory analysis. Measurement spot is 17 from upstream to downstream. The result Nitrateis excellent but Phospat high on some spot measurement. Especially it happens in part of urban,market and several communities. The highest Nitrate is 2.13 mg/L standard 10 mg/L and highestPhosphate is 0.86 mg/L standard 0.2 mg/L
