The developer and his contractor and engineer shall construct all storm water facilities such that all construction conforms to the workmanship and requirements detailed in the appropriate sections of the City standard specifications for municipal construction, and in conformance to the City standard details for storm water construction.
A. 
All municipal improvements that shall require City maintenance after the one-year warranty period and final acceptance by the City shall have the construction supervised by a registered engineer in the state and shall have a qualified inspector present while construction is actually occurring. The developer may select a qualified, registered engineering firm of his choice to provide the inspection, or as part of his subdivision agreement, he may elect to have and negotiate a fee for the City to provide this inspection and construction supervision.
B. 
During the construction process all materials shall be tested according to standard engineering practices to assure that proper and adequate materials are utilized for the construction of these municipal improvements. Certified test results shall be submitted to the City engineer within five days after the test results have been taken to assure the quality of construction.
All materials utilized for municipal improvements and construction shall be new and of highest quality and shall conform to the materials specifications detailed in the appropriate sections of the City standard specifications for municipal construction.