• Khin Phyu Phyu Aung
• Dr. Win Win Zin
• Dr. Cho Cho Thin Kyi
• Christopher Bonzi

The major change of water quality occurs when flowing river is dammed. After the Nga Moe Yeik dam has been accomplished, the water quality of Nga Moe Yeik creek became worse due to the accumulation of pollutants and solid waste. Water quality assessment was made at the Nga Moe Yeik area. In this study, water samples were collected from eight stations of Nga Moe Yeik reservoir and along the creek. The physicochemical parameters were tested in June, August and December 2020 and then Water Quality Index (WQI) values were calculated and compared with National Water Quality Standards for Malaysia (NWQS) to indicate the quality of creek. From the test results from various stations, WQI values were found to be varied from 86.18 to 270.35 in June, from 50.33 to 193.37 in August and from 30.45 to 156.45 respectively. WQI value reached maximum value of 270.35 in June and 193.37 in August at the sluice gate. In December, maximum WQI value was 156.45 at the Phaung Gyi station of Nga Moe Yeik creek. According to the maximum WQI value of 270.35 at sluice gate, it should be treated with proper treatment before using and should be restricted irrigation uses in some points. The WQI analysis from this study indicates that water quality of Nga Moe Yeik creek is very poor and unfit for drinking.

water quality, physicochemical parameters, water quality index (WQI), Nga Moe Yeik creek

"Assessment of Surface Water Quality Using Water Quality Index in Nga Moe Yeik", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 10, page no.e487-e494, October-2021, Available :http://www.jetir.org/papers/JETIR2110474.pdf

"Assessment of Surface Water Quality Using Water Quality Index in Nga Moe Yeik", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 10, page no. ppe487-e494, October-2021, Available at : http://www.jetir.org/papers/JETIR2110474.pdf