Vapi Industrial Township did not have any gutter for sewage management and entire volume of untreated sewage was flowing through storm water open gutter and going into river. In the next move, it was decided to include even domestic sewage, which was into the system, even through the original proposal of CETP was only for providing treatment to industrial wastewaters. The daily intake, with combination of sewage, reached 48000-52000 m3/d. VWEMCL is a non equity, non profit entity based on co-operative principles with corporation culture of management was formed in 1997. It is also certified ISO 14001 since 2001.