WAPCOS wins consultancy contract for development of SWD system in Thoothukudi, Tamil Nadu March 28, 2024 | Announced/Approved, Key Segments, Municipal Wastewater, Project Updates, Tenders, Wastewater WAPCOS Limited won a consultancy contract worth Rs 13.32 million for development of stormwater drainage (SWD) system in Thoothukudi, Tamil Nadu. This content is restricted.