The Ga South Municipal Authority (GSMA) has demolished some houses and structures near the Weija Dam.
Over 40 buildings along the Green Belt site, which are deemed to be illegal structures, have been pulled down.
The structures were demolished in order to protect the dam.
The GSMA Engineer, Felix Ofosu Teye, said property owners around the area had been warned several times since 2015.
He noted that the Weija Dam served close to 4,000 people in the Greater Accra Region and the settlers around it were polluting the water.
“Moving around the structures we also noticed that some of them have connected their sewage system close to the water, which is very dangerous,” Mr. Teye told the GNA.