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13 <br /> nutrient reduction program <br /> Annual reports from County to Annually <br /> NCDWQ on new development <br /> and existing Development <br /> Programs <br /> 50% of all nutrient reduction to 10 years July, 2019 <br /> be accomplished, or alternative <br /> timeframe and technical basis <br /> submitted. Submit revised <br /> program for reducing remainder <br /> of nutrient reduction <br /> requirements. <br /> Implications for Orange County Government/ Issues for Consideration <br /> 1. Estimated Cost <br /> NCDWQ developed a set of cost estimates in conjunction with the rules <br /> preparation, which was revised for the May 9 adoption by the EMC. The <br /> estimated cost for local governments in the Jordan Lake watershed to implement <br /> their responsibilities under the rules was up to $530 million (total), although it <br /> could be as low as $230 million. The vast majority of the projected cost to local <br /> government is in addressing the possible requirements for existing development. <br /> These projected costs include the required plans, the potential capital costs of <br /> new structural measures, and the cost of new staff needed to address structural <br /> and non-structural solutions (such as through development standards and <br /> stormwater ordinances, for example). <br /> In Orange County's case, with a longstanding preference to non-structural <br /> watershed protection and stormwater management, the primary costs to be <br /> incurred cannot be accurately estimated until the jurisdictional loading rate is <br /> determined using forthcoming spreadsheets from DWQ, and a subsequent plan <br /> is complete. However, costs are expected to be incurred in the following <br /> categories: <br /> • Additional staff to oversee and inspect new ponds and stormwater <br /> measures <br /> • Construction of new stormwater measures (ponds, bioretention <br /> areas, wetlands), and renovation and expansion of existing <br /> structures <br /> • Land acquisition for stream buffers, stream restoration, wetlands <br /> creation and other nutrient reduction, and <br /> • GIS needs to determine 2001 and 2009 nutrient loads. In order to <br /> determine nutrient loading rates Orange County must determine <br /> land use and/or cover types as inputs for the baseline period as <br /> well as currently. Staff is investigating utilizing the state's GIS <br /> services to obtain this data. Since there would be a substantial cost <br /> to obtain this data, it may be appropriate to ask the state to provide <br /> 11 <br />