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57 <br />These local programs must be at least as stringent as the state <br />minimum requirements. Local governments may choose to adopt <br />protection measures more stringent than the state minimum <br />standards. Local ordinances should address all the provisions <br />outlined in the water supply protection rules. This includes <br />encouraging the use of best management practices where practical <br />for all activities in the watershed area, establishing appropriate <br />limits for development densities and allowable land use practices <br />as well as implementing plans for maintaining hazardous materials <br />inventories and spill /failure containment plans. The DCA has <br />worked with DEM staff to develop a model ordinance that local <br />governments can utilize in developing their water supply protection <br />programs. The intent of the model is to reflect the requirements <br />of the water supply protection rules as adopted by the Commission. <br />A draft model ordinance was not available for inclusion in this <br />package, but will be available, as noted in Appendix D, for your <br />review and comment. <br />Administration <br />Local governments will be responsible for administering the <br />land use management and protection plans associated with the water <br />supply protection rules as outlined in HB 156. If a local <br />government fails to implement or appropriately administer their <br />program according to the minimum requirements, the EMC may assume <br />responsibility for the program, impose the state's minimum or more <br />stringent requirements and access civil penalties on the local <br />government to recover the costs of administering the program. <br />Local governments should be aware that once their programs are <br />approved by the EMC, notification should be given to DEM and the <br />EMC of any proposed modifications. In some cases modifications <br />(changes to critical or protected area boundaries) may require that <br />the EMC conduct a public hearing on the proposed changes. <br />RESPONSE TO GENERAL QUESTIONS <br />• How is existing development defined and what is the effect on <br />zoned land? <br />Staff have received numerous questions asking for clarification <br />of what would be required of projects that are already in prog- <br />ress or projects that are to be built in phases. The rules <br />have therefore been proposed to be modified to include a defi- <br />nition of various categories of existing development. This <br />existing development is required to comply with the rules to <br />the "maximum extent practicable ". Since the "maximum extent <br />practicable" leaves room for interpretation, the Commission is <br />very interested in receiving comments on this issue. The fol- <br />lowing is how staff would interpret what would be required. <br />Depending on the comments received, further clarification may <br />be added to the rules. <br />The modified rules state that existing development would <br />11 <br />