A Master Storm Water Management Plan shall be required in conjunction with the initial master planning for each PUD parcel. Individual Storm Water Management Plans consistent with the Master Storm Water Management Plan will be required with each preliminary plat for ground within the PUD area. The Developer will have said Storm Water Management Plans prepared by a Professional Engineer licensed in the State of Iowa. The Storm Water Management Plans shall comply with the City's current design standards for storm water management. The method of storm water management and the storm water conveyance system shall be determined prior to City approval of a preliminary plat.
At time of final platting, ownership and responsibility for all storm water detention areas and private storm water detention outlet structures will need to be established through the execution of a Storm Water Facility Maintenance Agreement prepared by the City with information provided by the developer. This agreement essentially provides that the property owner will maintain and repair their storm water facilities. If they fail to do so, the city will make repairs or perform maintenance and assess all costs back to the property owner. Upon installation of storm water management facilities, the property owner will be responsible to provide as-built drawings and a letter certifying the detention facility was constructed in conformance with the approved Storm Water Management Plan. The letter and as-built plans will be required prior to the issuance of a final occupancy permit for the first building or residential dwelling on property which is served by a particular detention facility. Both the letter and as-builts will need to be signed and sealed in accordance with Chapter 6, 193C-6.1(542B) of the Iowa Code. (Ord. 2407, 3-16-2020)