The regulation of emission concentration for stream water qualities doesn\'t control quantitative increase on
pollution loads, it has limits for improvement of water qualities. Total water pollution load management
system(TMDL) can control the total amount of pollutant in waste water which is allowed to assign and control the
total discharged pollutant loads in a permissible level. When it comes to generated wastewater value of TMDL
system, there is difference between calculated value based on individual pollutant unit load and observed value.
Calculated sewer inflow, calculated sewer outflow, measured sewer inflow, and measured sewer outflow at dry
season are 26,460.9/d, 17,778.6/d, 17,106.1/d and 19,033.9/d respectively, Calculated sewer inflow, calculated
sewer outflow, measured sewer inflow, and measured sewer outflow at rainy season are 49,512.2/d, 18,628.7/d,
30,918.2/d,19,700.7/d respectively. This result presents the necessity to acquire the precise observed data to
fulfill the efficient TMDL system.