Tshwane mayor Cilliers Brink says plans to upgrade the Rooiwal Wastewater Treatment Works are on track, as they prioritise security. Brink and Minister of Water and Sanitation Senzo Mchunu were at the Rooiwal Wastewater Treatment Works for an oversight project inspection. Deputy Director General, Water and Sanitation Services Management Risisati Mathye says they'te making progress.