Evaluation program as a driving force for efficient operation and maintenance of waterworks

One of the practical means for waterworks to compete with each other for efficient operation is implementing an evaluation program. The evaluation program, coinciding with public notification, was prepared and implemented as a trial in Korea in 2003. However, several unexpected issues arose during the implementation. The evaluation scheme has been revised and described in this paper. The water quality might better be used as a qualification barrier for the further evaluation process. It may also be reasonable to consider that the evaluation team might visit on a very exceptional day for the plant, therefore it might be better to let the evaluation team have enough time to assess plants more extensively. The collateral case study reports should be used as a manual to maintain consistency between the evaluation teams. Although the case study took place in Korea, the revised principles from this experience may be beneficial to other countries.