... natura l pond A2 water course B1 water course B2 water course C water course D water course Fig. 4 Water quality of natural pond at inflow (2007) Journal of Water and Environment Technology, ... influences of precipitation and mud on water quality of the pond, quantification of effects by dredging, and assessment of improvement and controls of water quality through the removal of bottom ... of inflow load a, b ; Position of outflow load Journal of Water and Environment Technology, Vol. 7, No. 4, 2009 - 230 - Method of analysis The following method was used for the analysis of water...