Sanitary Sewer Permitting

 

The Engineering Department reviews permits and calculates all sanitary sewer availability/connection fees for new residential subdivisions, individual residential connections, commercial projects, and change of use calculations (remodel projects). The department is responsible for collection, processing and tracking of all sanitary sewer related fees, excluding usage which is managed by the Wastewater Utility. The engineering inspection staff performs inspections of the individual sanitary sewer lateral connections, commercial or residential.
 
The Engineering Department, prior to permitting, is responsible for many facets of the development and construction of sanitary sewers. The City Engineer reviews all waste load allocation requests. Waste load allocations are the amount of proposed sanitary sewer flow that is expected from a development. Once it is determined that our sanitary sewer collection system is adequate to include additional flow, the City Engineer prepares a letter to the Indiana Department of Environmental Management (IDEM). IDEM requires approval of the City Engineer prior to the issuance of any sanitary sewer related permit. Once detailed plans are developed for a project, the Engineering Department must review, comment and approve construction plans when complete. All construction plans must be approved by the Engineering Department prior to construction. After a project is approved, the engineering staff inspects all phases of construction. A typical sanitary sewer project will have daily reports from the engineering inspection staff to document the progress of construction. Upon completion of construction, the sanitary sewers must under go a series of required tests for quality assurance. The sanitary manholes are vacuum tested, main lines are pressure tested, and mandrels are pulled through the new sanitary lines to test for deflection. The final inspection involves the use of a remote camera that films the interior of the new sewer. The as-built drawings are submitted to the Engineering Department for review, along with the videos in a CD format and all test results. The final step is to review all the data and recommend the acceptance to the Board of Public Works and Safety. Once a new main is accepted, the Engineering Department then inspects all new laterals connections to the new main to insure compliance with the Noblesville Construction Standards. These inspections help keep the cost down for running the Noblesville Wastewater Utility Plant by reducing the amount of unnecessary inflow/infiltration of ground water

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Brian Gray, Asst. City Engineer

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