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I I I I I I I I I I I I I I I I I I I 2.5.4 Maintenance Needs Public detention ponds, designated as such on master drainage plans, shall be dedicated to the City/County for maintenance following the warranty period. Maintenance of other detention ponds shall remain the responsibility of the property owner(s). The City/County requires the right and authority to enter upon the private property and make necessary corrections or perform the necessary maintenance to every private detention facility which is a part of the overall drainage master plan. To facilitate maintenance of detention facilities, a 15 foot maintenance easement shall be provi ded around the perimeter at the top of bank of the bas in. Acces s to the bottom of the pond shall be provi ded vi a a mi nimum 14 foot wide ramp at a slope no greater than 12%. Side slopes of the basin shall be no steeper than four to one without City/County approval. Detention ponds shall be constructed off-stream of the major drainageways unless otherwise depicted in the Drainage Basin Planning Study. The cost of such maintenance on private detention ponds shall be the responsibil ity of the property owner(s). A perpetual maintenance agreement between the City/County and the property owner(s) shall be recorded at the County Recorder's Office for all private detention facilities. 2.6 Erosion and Sediment Control The need for erosion and sediment control facilities, either permanent or temporary, shall be determ i ned accord i ng to the standards for sediment and erosion control (referenced in Chapter of this manual) in developing areas, as required by the City/County. -- An Erosion Control Plan is required by developers unless otherwise approved by the City/County (see Chapter 4). Temporary erosion and sedimentation control facilities shall be constructed prior to any grading or extensive land clearing, in accordance with the erosion control plan. These facilities must be satisfactorily maintained until construction and landscaping are completed and the potential for on-site erosion has been significantly reduced. 2.7 Flood Plain Standards The City/County has adopted flood pI ai n regul at ions as part of the "Zon i ng Regulations" set forth in Section 32, Part IV of the "El Paso County Land Deve 1 opment Code" and Chapter 15, Arti c 1 e 6 of the Co 1 orado Spri ngs City Code. The City/County flood plain policy is noted in Section 1.4.2. The adopted City/County flood plain mapping standards include those formulated by FEMA and identified as part of the zoning regulations for the Flood Plain District. Flood depth-damage curves and flood damage-frequency curves are sometimes included in the various flooding investigation reports. Flood control benefits may also be included. A Flood Plain Administrator has been established by the City/County whose responsibilities include the following: 2-6