The treatment plant is designed to prevent excess water from flowing into the sea. The water will then be treated and supplied through pipes to beneficiary communities in Ghana and Togo.
This was the outcome of a discussion between President John Dramani Mahama and his Togolese counterpart, President Faure GnassingbÃ©, in Togo last Monday.
President Mahama made a stopover in Togo enroute to Benin for a two-day state visit.
Briefing journalists at the Flagstaff House, Kanda in Accra yesterday, the Minister of Information and Media Relations, Mr Mahama Ayariga, said the documents for the project had since been forwarded to the government's legal team for a review.
He said the legal team was expected to complete the review this month and submit it to the AfDB.
President Mahama and President GnassingbÃ© also touched on energy generation and the need for Ghana to increase supply to Togo.
The minister said President Mahama indicated Ghana's commitment to increase its energy generation, following which supply to Togo would be raised.
For instance, he said the Ghana Government would develop a mini-hydro plant at Juale in the Northern Region to increase the country's energy capacity and supply the excess to Togo.
The two leaders also spoke about regional integration, especially the need to promote the free movement of people, goods and services across borders, Mr Ayariga said.
He said President Mahama and his Togolese counterpart also expressed their commitment to the Lagos Highway Road Project, which seeks to facilitate transportation between Ghana and its neighbouring countries.
They also discussed how to strengthen efforts in the fight against organised crimes such as piracy and terrorism in the sub-region.
By Musah Yahaya Jafaru/Daily Graphic/Ghana