A study on the composition validity of performance indicators for public sewage treatment plant by using factor analysis

요인분석기법을 활용한 공공하수처리시설 성과평가 지표의 구성 타당성 연구

Yoon, Cheon-Yeo;Koo, Ja-Yong

  • Received : 2015.09.16
  • Accepted : 2015.10.20
  • Published : 2015.10.15


Evaluation and comparison for the performance on the contracting-out became possible after the introduction of the performance indicators(PIs) in 2012 in Korea, And local governments and private companies are utilizing them as evaluation data to enhance the performance of the contracting-out. Several revisions on performance indicator were carried out by expert group on contents validity of PIs, But the review of the composition validity of PIs was not sufficient. In this study, the applicability, distinction ability and composition validity of PIs is evaluated by statistical method. From the results, Improvement of indicator is required in order to increase the interrelationship among indicators to enhance the compostion validity of indicators related with operation, sludge and water reuse.


Contracting-out;Factor analysis;Performance evaluation of contracting-out;Performance indicator;Composition validity


  1. Alegre, H. Cabrera, E. Merkel, W. (2009). Performance assessment of urban utilities: the case of water supply, wastewater and solid waste, Journal of water supply : Research and Technology-AQUA, Vol 58, No 5, pp. 305-315
  2. Ahn, Y. M. (2007). The development and application of the performance indicator for sewage system service in korea. Journal of the korean society of water and wastewater, Vol 21, No4. pp. 453-465.
  3. Koo, J. Y. Korean society of water & wastewater(KWWA) (2013). The study on the improvement of performance indicator for contracting-out of public sewerage. pp 76-78.
  4. Koo, Y. C. (2012). A study on the construct validity of the social welfare facility evaluation index. Master's Thesis, Sungkonghoe University, Seoul, pp.15-16.
  5. Korea water and wastewater works association (2013-2014). Result report of performance evaluation on public sewage utilities.
  6. Lee, Y. J. (2002). Understanding of factor analysis, SeokJung, Seoul.
  7. Ministry of Environment (2014). Guideline of contracting-out for Public sewage facility management. pp.110-142.
  8. Ministry of Environment (2013). Sewage statistics
  9. Rafaela, M., Richard A., Adriana C., Alejo M., Andreas S., Patricia D., (2003). performance indicators for wastewater services-on the way to a manual of best practice and its implementation, IWA Publishing
  10. Song, E. J. (2008). Characterization of Sewage System Service Change of Korea through the Application of the Performance Indicator for Sewage System Service, Master's Thesis, The University Of Seoul, Seoul, pp.6-11.