This WOPs is a peer-support arrangement between PDAM Tirta Raharja Bandung Area, Indonesia and Empresa Metropolitana de Abastecimiento y Saneamiento de Aguas de Sevilla (EMASESA) Spain, carried out on a not-for-profit basis with the objective of strengthening operator capacity.

An initial diagnosis conducted by the mentee prior to the WOP identified non‑revenue water reduction as a key objective, which influenced the Ministry during the selection process. Classroom training was used, along with on-the-job training in the pilot area. The operators drafted a two-year work plan and EMASESA supported actively the achievement of its objectives. Since the end of the WOP, managers of both operators have had regular follow-up by email. An additional US$ 32,000 was invested by the mentee in the pilot project. This cost was not included in the official cost of the WOP.