www.ccsenet.org/enrr Environment and Natural Resources Research Vol. 1, No. 1; December 2011 ISSN 1927-0488 E-ISSN 1927-0496 130 Prediction on Water Quality of Point-Source Pollution for Lunchoo River, Malaysia Rafidah Shahperi Department of Environmental Engineering, Faculty of Civil Engineering Universiti Teknologi Malaysia, Johor Bahru 81310 , Malaysia Tel: 60-075-531-530 E-mail: raaz_shahyusoff@yahoo.com Mohd Fadhil Md. Din Department of Environmental Engineering, Faculty of Civil Engineering Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia Tel: 60-075-531-530 E-mail: mfadhil@utm.my Zulhilmi Ismail Department of Environmental Engineering, Faculty of Civil Engineering Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia Shreeshivadasan Chelliapan (Corresponding author) UTM Razak School of Engineering and Advanced Technology Universiti Teknologi Malaysia (International Campus) Jalan Semarak, Kuala Lumpur 54100, Malaysia Tel: 60-032-615-4581 E-mail: shreeshivadasan@ic.utm.my Received: October 15, 2011 Accepted: November 10, 2011 Published: December 1, 2011 doi:10.5539/enrr.v1n1p130 URL: http://dx.doi.org/10.5539/enrr.v1n1p130 The research is financed by Universiti Teknologi Malaysia and Ministry of Higher Education (MOHE), Malaysia. Abstract The growth in urbanization, industrialization and irrigated agriculture are imposing growing demands and pressure on water resources. As a case in point, Lunchoo River, Malaysia was considered on of the contributing factor to water quality deterioration with regional consequences on the aquatic ecosystem. Moreover, it also deemed to affect the health of the downstream sub-basin user group. Influenced by tidal, restricted exchange between estuaries and the open sea allows rapid change in salinity, temperature, nutrients and sediment load. Therefore, a balance is vital between development and a good quality of life. In the present study, limitation on point source pollutant and low flow conditions are investigated. An understanding of the existing river and waste stream characteristic is necessary to determine the background level of pollutant. In addition, output generated from this study is an important key towards an optimal management of water resources. Results showed that in making prediction of water quality for Lunchoo River, it is essential to characterize the volume and properties of the river and wastewater stream. Moreover, both hydraulic and constituent flow rate fluctuated greatly in most part of the experimental field. Keywords: Low flow, Point-source pollutant, Water quality