The prediction of discharge is very important in water resources management and plan. In this study, we have analyzed discharge data of site at up and down stream in watershed. In order to forecast discharge the regression equations were developed by measuring flow data. Also, to forecast the change of water quality followed by change of inflow the correlation relationship between inflow of the Youngchun site and the Chunhju dam was shown as very high. The forecast of inflow at the Chungju dam would be possible through flow analysis of the Youngchun site. And, it is possible to forecast water quality by flow analysis because the correlation relationship of SS and turbidity followed by change of flow for each station of investigation was very high.

Abstract
 1. 서 론
 2. 대상유역의 개요
 3. 결 과
  3.1. 유량분석 결과
  3.2. 수질분석 결과
 4. 개발식의 적용
  4.1. 유량 회귀식
  4.2. 수질 회귀식
 5. 결 론
 참 고 문 헌

• 장인수(충주대학교 환경공학부) | In Soo Chang (Department of Environmental Engineering, Chungju national University)
• 정진경(충주대학교 환경공학부) | Jin Kyeng Jung (Department of Environmental Engineering, Chungju national University)
• 박기범(충주대학교 환경공학부) | Ki Bum Park (Department of Environmental Engineering, Chungju national University) Corresponding Author