CROWN POINT | Work leading to a state-mandated sewer separation is estimated to cost $4.6 million, according to a preliminary engineering report approved by the Board of Public Works and Safety.
Armed with results of the Commonwealth Engineers report on waste water treatment plant improvements, city officials will seek a low-interest loan from the state revolving fund loan program to pay for the project.
The loan is to be repaid from city sewer utility revenue. Utility rates have not been increased to fund the project, officials said.
The state in 2007 ordered the city to correct problems stemming from combined sewer systems which permit both storm water and sanitary flow in sewers in older parts of the city. A 2018 deadline was set.
The report delivered by project manager Al Stong and Commonwealth Engineers, said a filtration system in the treatment plant is dilapidated and not operating efficiently, and must be replaced.
New technology developed since the filtration system was first installed would provide more efficient waste treatment with minimal maintenance, the report said.
The cost of the replacement filter system proposed by Commonwealth was estimated at $2.6 million, the steepest of all costs related to the project.
Total estimated construction cost was $3,752,400. Non-construction costs, including design, engineering, land acquisition and other services, totaled $891,500, for a total $4,643,900.
The city has been working with the Indiana Department of Environmental Management on the project. Commonwealth Engineers is overseeing the work.
Commonwealth involvement in the project has helped the city reduce costs and hit milestones required in the 2007 judicial order, Mayor David Uran said.