A. Prior to the initiation of any development within the scope of this chapter, the developer shall cause plans, specifications and documentation herein required to be prepared by an engineer and submitted to the city for review and approval. At a minimum, such plans, specifications and documentation shall provide the following submittals:
1. Predevelopment Report: This report shall include information accurately describing the following conditions of the site:
a. Dimensions, size and location;
b. Existing topography;
c. Soil types;
d. Vegetation;
e. Flood hazard areas;
f. Other significant surface features;
g. Existing land use;
h. Existing runoff volume and rates; and
i. Existing runoff routing;
2. Plans And Specifications: Detailed plans for drainage system improvements and the control of erosion and sedimentation shall contain the following information:
a. Construction plans, details and specifications for all drainage system improvements;
b. An estimate of soil loss during and after development;
c. Proposals for the control of erosion and sedimentation in accordance with the requirements of the Oklahoma pollutant discharge elimination system;
d. Proposed topography of the site after development or improvement including the method of handling runoff and stormwater;
e. Data showing the nature and extent of the proposed clearing, grading and development or improvement operations; and
f. Description of hydraulic methods, assumptions, calculations and results used in preparation of drainage improvement plans;
3. Drainage Impact Statement: A written statement of the impact on upstream and downstream drainage prepared by an engineer shall be submitted and approved by the city. The accuracy and validity of any drainage impact statement and attachments shall be capable of withstanding serious challenge at any stage in the review and approval process in order to be accepted as a part of the project;
4. Easements And Rights Of Way:
a. A description of proposed easements or rights of way within the boundaries of property under the control of the developer and as necessary to comply with the provisions of section 12-1013 of this chapter;
b. Where easements or rights of way are required beyond the limits of the property under the control of the developer, the developer shall attempt to secure such easements or rights of way on behalf of the city; and
c. Where efforts to secure easements or rights of way by the developer in compliance with subsection A4b of this section are unsuccessful, the city may agree to pursue such easements or rights of way as it may find appropriate in the public interest;
5. Compliance With Other Regulations:
a. All plans and documentation required by this chapter must comply with all city standards, regulations, ordinances, and with any approved drainage master plan or drainage studies; and
b. A floodplain development permit is required to be obtained prior to any construction activity within the 100-year floodplain as required by the flood hazard area development regulations in chapter 6 of this part. (Ord. 1387, 1-30-1996)