Research on the Development Management Basin and Goal for 3th T.W.Q on the Boundary between Metropolitan Cities/Dos Specified in Nakdong River Basin

Abstract

The current Total Pollution Load Control (TPLC) sets the Target Water Quality (TWQ) by utilizing the delivery ratio, unit loads, and water quality modeling, it also allocates the watershed's permitted discharge load. Currently, common target pollutants of every unit watershed in TPLC are BOD and T-P. This study has reviewed the 1th and 2th of TWQ setting process for the Nakdong River 3th TWQ setting in Total Pollution Load Control (TPLC). As a result of review, 1th and 2th were divided into one management basin (mulgeum) for setting management goals. However, 3th was divided into six management basins (mulgeum, gnagjeong, geumho river, nam river, miryang river, end of nakdong river). The principle of management goal setting were to achieve the objective criteria of Medium Areas for the linkage of the water environment management policy. And Anti-Degredation (principle of preventing deterioration) were applied to the 3th TWQ. Also, additional indicators were considered in accordance with the reduction scenarios for the final management goals.

Evaluation of Watershed Water Quality Management According to Flow Conditions through Factor Analysis and Naïve Bayes Classifier

“…A representative water quality measure is the total maximum daily load (TMDL) system, which allocates and manages the acceptable pollutant load from the set target water quality (TWQ) limit for each watershed. The acceptable pollutant load is determined using water quality modeling to ensure that the TWQ can be met under baseline flow conditions [1]. The evaluation of model calibration and validation uncertainties for TMDL reliability is limited.…”