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<br />23 <br /> <br /> <br />000790 <br /> <br />plain ordinances proposed by local governing bodies must be <br />approved by the Iowa Natural Resources Council prior to <br />adoption, Regulations controlling flood plain developments <br />also may be established by order of the Resources Council <br />independently of any action by local governing bodies, The <br />Resources Council may cooperate with and assist local units <br />of government in the establishment of encroachment limits, <br />flood plain regulations and zoning ordinances, It is anticipated <br />that all or nearly all flood plain regulations will result from <br />cooperative efforts and action by the local communities and <br />the Resources Council. <br /> <br />A study of the Iowa River and local tributaries at <br />Iowa City was made by the Resources Council in 1960 and <br />regulations based thereon were adopted by the City in 1962 as <br />part of its comprehensive zoning ordinance, The ordinance <br />permits only open-type uses in the channel and overbank areas <br />needed for conveyance of a flood of selected magnitude and, <br />in those flood plain areas not needed for conveyance, permits <br />development consistent with the adjoining use district provided <br />the area is filled to a specified elevation corresponding to the <br />water surface elevation of the design flood, <br /> <br />Flood plain information studies are completed or <br />underway for several other areas of the state and it is <br />anticipated that additional flood plain zoning ordinances will <br />be approved and adopted as the technical bases therefor <br />become available, <br /> <br />e, Discharge of wastes <br /> <br />The Iowa Water Pollution Control Commission was <br />created in 1965 with the power and duty to supervise administra- <br />tion and enforcement of all laws relating to water pollution; to <br />develop comprehensive plans and programs for the prevention. <br />control and abatement of new, increasing, potential, or <br />existing pollution of waters of the state; to cause investigations <br />to be conducted regarding alleged pollution; to adopt, modify <br />or repeal reasonable quality standards for waters of the state; <br />to require the submission of plans and specifications for dis- <br />posal systems; and to direct the State Department of Health <br />to issue, revoke, modify, or deny permits for the discharge <br />of sewage, industrial waste or other wastes or for the installa- <br />tion or operation of disposal systems or parts thereof. <br />