While approximately 77% of Indonesian households have access to basic sanitation facilities (like septic tanks), just 7% of households have access to safely managed sanitation that ensures safe disposal of domestic waste to wastewater treatment plants (WWTPs) for further processing. With so many households in the project cities facing inadequate sewerage and being prone to flooding, groundwater pollution and environmental and health risks are frequent occurrences.
The project aims to strengthen the sanitation systems for approximately 2.5 million people in the three cities. It is designed based on the citywide inclusive sanitation principle, which ensures that everyone has access to appropriately handled sanitation services by integrating both sewered and nonsewered systems.
The project will improve and expand existing sanitation systems by constructing WWTPs with a combined daily capacity of 57,000 cubic meters and approximately 200 kilometers of sewer networks. Design measures to ensure climate and disaster resilience have been incorporated, such as constructing elevated structures to guard the WWTPs against future flooding, implementing drainage systems at the WWTP sites to manage stormwater volumes, and installing a breakwater to mitigate the impact of high tides and flooding.
Furthermore, the project will concentrate efforts on improving fecal sludge management facilities, strengthening regulatory frameworks, and enhancing the operational efficiency of sanitation service operators in areas such as governance, digitization, and asset management.