901.06 ADDITIONAL REGULATIONS. 
   In case the sanitary sewers, water mains and appurtenances, sidewalks, street paving and storm sewers are constructed and financed by individuals or corporations for developments of subdivisions and/or other property, the individuals, corporations and/or their contractors shall conform to the provisions in Sections 901.01 to 901.05, inclusive, and, in addition, to the following regulations:
   (a)    The owner and/or contractor of any privately financed development shall deposit with the City Treasurer sufficient funds to cover all engineering, supervision and inspection costs. This fund shall be set aside by the City Treasurer for defraying the costs of such engineering, supervision and inspection and should any portion of the fund not be used the unused portion shall be returned to the person or corporation furnishing the same. Should the original amount deposited not be sufficient to cover the expenses of such engineering, supervision and inspection, the owner and/or contractor shall deposit with the City Treasurer, sufficient funds to complete such engineering, supervision and inspection. At no time shall the owner and/or contractor proceed with any work in the development until such funds are deposited with the City Treasurer. The amount of such to be deposited shall be determined by the Engineer and approved by the Service Director.
   (b)    A noninterest bearing fund shall be deposited, or bond furnished, which deposit or bond shall be five percent of the construction costs, to provide for the maintenance for a period of one year. The persons or corporation furnishing such deposit or bond shall, upon notification of defects in work or maintenance required, make such repairs or maintenance without any cost to the City. Should such repairs and maintenance not be done within five days after notification, the City may make such repairs as necessary and deduct all costs from the deposit or require the bonding company to pay such costs. This deposit made to or bond made in favor of the City Treasurer, shall be held by the Treasurer for a period of one year after acceptance of the improvement by the City at which time the unused portion of the deposit will be returned or bond released .
   (c)    All plans for privately financed projects, such as sanitary sewers, water mains and appurtenances, streets, storm sewers and sidewalks shall be prepared and signed by a registered professional engineer.
   (d)    All plans for the construction of sanitary sewers, water mains and appurtenances, streets, sidewalks and storm sewers shall be presented to the City for approval, and no work of any kind pertaining to construction covered by such plan shall proceed until such plans have been approved by the proper authorities, as noted herein. The detail plans and final plans when submitted shall consist of the original and two blue prints on white line copies, of which shall become the property of the City. (1964 Code §152.6)