Sufficient information should be submitted on all proposed detention/retention basins. This includes the following items:
(1) 
Hydraulic study.
All necessary computer runs should be submitted in a bound and labeled booklet form. This should include backwater curve runs on existing conditions prior to development of the subject property, proposed existing conditions after development of the subject property, and fully developed conditions after development of the subject property.
(2) 
Final construction plans.
Construction plans shall be submitted on standard 24-inch by 36-inch blueline sheets. The plans will include plan and profile of the entire basin with its inlet and outlet structures, edge treatments, fence, landscaping plan, and upstream and downstream erosion control. All design calculations and graphs showing the detention/retention storage design must be included in the construction plans. A grading plan for the basin or pond area, along with the drainage area map, must be included.
(3) 
Landscaping plan.
In addition to final construction plans, a landscaping plan shall be submitted on standard 24-inch by 36-inch blueline sheets. The plans will need to include the locations and types of all plans, trees, shrubs and grass. This plan will also need to include all decorative features such as fencing, waterfalls, etc. The landscaping plan will be approved by the city prior to or with the final plat.
(4) 
Homeowners association (HOA) declarations and covenants.
The HOA declarations and covenants must be approved by the city prior to the final plat approval by the city council. The HOA declarations and covenants must provide the following:
a. 
Specifically indicate all maintenance responsibilities of the HOA. Provide a detailed list of items the HOA is responsible to maintain (i.e., the HOA is responsible for the maintenance and repair of the aeration fountains, landscaping upkeep, replacement, etc.).
b. 
Provide a detailed schedule indicating when the maintenance is planned to take place and the number of times per year the maintenance will be performed. Include the estimated annual cost for the maintenance of the detention/retention pond and everything associated with the pond.
c. 
An estimate of the annual cost to maintain the pond and a provision for deposit of this sum into an HOA account. This shall be maintained as a minimum balance in the HOA account. The cost will include mowing and maintaining the pond, any aeration fountains, and all other HOA responsibilities.
d. 
Such declarations and covenants must provide for assessments of property owners and for liens to be placed on all property in the subdivision if such assessments for maintenance of the detention/retention pond or any item associated with the pond (i.e., aeration fountains, mowing, etc.). Such declarations and covenants shall provide that the city shall have the right to enforce all HOA obligations concerning such maintenance if the HOA fails to perform, including the right to assess, place liens, and foreclose the same.
(Code 1975, § 10¼-91)
(a) 
The normal subdivision review process will be followed. Preliminary construction plans will be submitted with the preliminary plat. Upon approval of the preliminary plat by the planning and zoning commission, the developer can submit the final construction plans, HOA declarations and covenants, and final plat to city staff for review and approval.
(b) 
The final plat, plans, and HOA declarations and covenants will be reviewed and approved by the public works department and submitted to the planning and zoning commission for their consideration. If the planning and zoning commission recommends approval, then the city council will consider the plat and plans. If the plat and plans are approved by the city council, then construction can begin subject to any state and federal review being necessary.
(Code 1975, § 10¼-92)
All projects will be reviewed in accordance with the Flood Damage Prevention Ordinance (article II of this chapter). Those projects which require a flood insurance rate map revision will be required to comply with the subsections contained in this section.
(1) 
Conditional letter of map revision (CLOMR).
The developer's engineer will submit the necessary hydrologic and hydraulic studies, along with an application for a CLOMR. The application will include the preliminary application fee, along with all support documentation deemed necessary by the city. After review and approval by the city, the application will be forwarded to the appropriate federal and state agencies. A permit to construct the necessary fill and/or public improvements will not be issued until a favorable response is received from the appropriate federal and state agencies.
(2) 
Revision to the current flood insurance rate map.
After the items of construction have been installed and inspected by the city, the development's engineer will submit an application for a map revision or amendment as appropriate. The city will review the application and supportive documents for compliance with city ordinances. After review and approval by the city, the application and supporting documents will be forwarded to the appropriate federal and state agencies for review. The city will not grant permission to occupy a new structure within the existing floodplain until a favorable response has been received from the necessary federal and state agencies.
(Code 1975, § 10¼-93)