All improvements shall be designed and installed in accordance with all of the elements of the General Plan and shall meet the minimum standards established by the ordinances and regulations relating thereto.
Plans for the improvements herein required shall be prepared by the City Engineering Department or by a qualified engineer, registered in the State of Oklahoma. Two sets of prints of the proposed plans and specifications for all improvements shall be filed with the Planning Commission at the time of submission of the final plat. One set of "as built" plans and specifications certified and signed by an engineer registered in the State of Oklahoma shall be filed with the City Clerk prior to the acceptance by the City Commission of any improvements installed by the subdivider.
In lieu of completion of the improvements herein required, the City Commission may require the subdivider to file a surety bond to insure the actual construction of such improvements according to the plans and specifications filed with the Planning Commission within a period of time not to exceed two years from the date of approval of the final plat. Such bond shall be in the amount of 100% of the estimated cost of the improvement as determined by the Planning Commission and with surety and conditions satisfactory to the City Commission.
In any case where the City Commission does not require a bond for the improvements required herein, no building shall be permitted on any lot or in any area in a subdivision where the proposed construction will produce runoff or require utility services that affect other areas or lots located within or outside the City limits until a surety bond is posted to cover the estimated cost for the portion of the drainage or utility improvements that will be needed to protect the affected area.
Each lot and block corner shall be marked with iron pipes or pins not less than 1/2 inch in diameter and not less than 18 inches long set not less than one inch below the finished grade. Each subdivision corner shall be marked with a permanent concrete marker capped with a noncorrosive metal plate set not less than one inch below the finished grade.
The subdivider of any subdivision to be used for residential, commercial, industrial or other purposes shall lay out, grade and otherwise improve all street that are designated on the approved plat or that directly serve the subdivision in accordance with the specifications of the City or the county except where the governing bodies have policies of additional assistance to the owners or developers and in accordance with the following provisions:
1. 
The new design of an improvement of an intersection of any new street with an existing state or federal highway shall be in accordance with the specifications of the Oklahoma State Highway Department, but in no case shall the standard be less than the applicable City specifications.
2. 
Whenever a subdivision contains a major street that requires a street facility that is more costly than is required to serve the future occupants of the subdivision, the subdivider shall be required to pay only the portion of the cost of the major street that would equal the cost of an improvement required to serve only the subdivision, as determined by the Planning Commission.
3. 
All driveways which connect with public street shall be constructed in accordance with "Standard Design of Driveway Entrances for Oklahoma Highways", revised August 1960, and subsequent amendments thereto, as prepared by the Oklahoma State Highway Department.
A plan for a system of sidewalks and walkways shall be prepared that will provide adequate pedestrian walkways within a residential or commercial subdivision or portion thereof with consideration given to sidewalk connections with all of the community facilities and commercial enterprises located within or adjacent to the subdivision, and in a manner that will provide convenient pedestrian circulation throughout the neighborhood or area in which the subdivision is located. The Planning Commission may require the construction of sidewalks to connect with existing or future proposed sidewalks in areas adjacent to the subdivision where such sidewalks are needed for pedestrian circulation. Sidewalks and walkways where constructed in the subdivision shall be in accordance with the sidewalk system plan approved by the Planning Commission and in accordance with the specification governing sidewalk and walkway construction.
The subdivider shall install water lines and fire hydrants in accordance with the policies and specifications governing water line construction except where the governing bodies have policies of additional assistance to owners or developers.
1. 
The subdivider shall install sanitary sewers whenever a sanitary sewer is reasonably accessible as determined by the Planning Commission. Sanitary sewers shall be installed in accordance with the specifications governing sanitary sewer construction.
2. 
When subdivisions contain five acres or more, the Planning Commission may require the subdivider to install sanitary sewers and a disposal system that is adequate to serve all of the lots within the subdivision.
3. 
Whenever the installation of a sanitary sewer is not required, septic tanks or other unit disposal systems may be used in accordance with the following provisions:
a. 
A lot for residential use on which a unit disposal system is located shall be not less than 22,500 square feet in area, or as required by the State Health Department.
b. 
No portion of any unit disposal system shall be located closer than 20 feet to the lot line of the lot on which the system is located.
c. 
All unit disposal systems shall comply with the requirements of the State and County Health Departments.
d. 
Septic tanks and laterals must be at least 200 feet from any municipally owned water well.
Drainage shall be provided in accordance with the specifications contained in the ordinances and regulations relating thereto.
Where the subdivision contains sewers, sewage treatment plants, water supply systems, or other physical facilities that are necessary or desirable for the welfare of the area or that are of common use or benefit and which are not or cannot be satisfactorily maintained by an existing public agency; provision shall be made which is acceptable to the agency having jurisdiction over the location and maintenance of such facilities for the property and continuous operation, maintenance and supervision of such facilities.