This clearwell had been drained so that it could be rehabbed. The construction company tried to close a valve so they could drain the water and perform the much needed work. However, the construction company was not able to close the valve, so they put a pipe plug in to stop the water from coming into the tank. After the work was completed, the construction company had find a way to remove the plug. Additionally, they had to fill the tank with water to remove the plug. At that point the construction company contacted us to come in and removed the plug.