Case study of Water Operators’ Partnership (WOP) between Indah Water Konsortium (Kuala Lumpur, Malaysia) and PDAM Tirtanadi (Medan, Indonesia) facilitated by USAID through ECO-Asia – Waterlinks to increase the number of households connecting to Medan’s city sewerage system by promoting sanitation using USAID 10‑Step Promotion Program Toolkit and staff training.
