Indonesia - PDAM Tirta Moedal Kota Semarang

The water supply company PDAM Tirta Moedal Kota Semarang is owned by Kota Semarang, a municipality of 1.8 million people in Central Java Province, Indonesia.

It was established in 1990. It serves around 40% of households in the area with piped water. The rest, such as those near coastal areas and low-income peri-urban areas use their own dug/drill wells or rely on small, locally managed systems.

The utility faces technical challenges, particularly regarding extension of water supply coverage, with such a large percentage of the population not served, and in maintaining a high level of water supply service to their existing customers. It also has a high level of non-revenue water (NRW), around 40%. It is guided by a business plan for the period 2018 - 2022, in which NRW reduction and an increase in coverage are set as key goals.

A large part of the city is heavily affected by land subsidence, largely caused by excessive groundwater abstraction, which makes the need for piped surface water supply indispensable.

Thomas de Jong
RPM VEI