A. A Master Storm Water Management Plan (SWMP) shall be required in conjunction with the Preliminary Plat or first Site Plan if not subdividing the property. Individual Storm Water Management Plans consistent with the Master SWMP will be required with the site plan for each lot or PUD Parcel.
B. The Developer will have said Storm Water Management Plans prepared by a Professional Engineer licensed in the State of Iowa. The storm water management plan shall comply with the City's applicable design standards for storm water management existing at the time each plat or site plan is approved. The method of storm water management and the storm water conveyance system shall be determined prior to City approval of a preliminary plat or site plan.
C. At time of final platting of a developable parcel or site plan if development is not known at the time of 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 Management Facility Maintenance Agreement. 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.
D. Upon installation of storm water management facilities, as-built drawings and a letter certifying the detention facility was constructed in conformance with the approved Storm Water Management Plan will need to be provided. The letter and as-built plans will be required prior to the issuance of a final occupancy permit for the first building 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. 2516, 5-6-2022)