Testing commences for new STP in Patto February 7, 2023 | Key Segments, Municipal Wastewater, News & Developments, State Initiatives, Wastewater Public Works Department (PWD) of Goa inaugurated the design, construction and testing of the 2 million litres per day (mld) sewage treatment plant (STP) at Patto in Panaji on February 6, 2023 This content is restricted.