Agenda - 10-21-1997 - 11a - Laserfiche WebLink

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I 19 ExEcumvE SUMMARY Cadmus also designed the study to address the multiple objectives outlined by the advisory committee. A "scenario based" decimn approach was used, whereby meaningful indicators were developed to link management objectives with options, and provide a shorthand for communicating the potential effects of management decisions on attaining those objectives. The advisory committee and OWASA planning staff were involved bout the study,providing feedback on the feasibility and preferences for management options. The study was conducted in five phases: 1. Coordination and collection of data 2. Analysis of existing data 3. Refinement of decision approach 4. Development and evaluation of management scenarios 5. Documentation of findings and recommendations to date Watershed contaminant delivery and reservoir water quality models were calibrated and applied to support phases 2 through 4. A spreadsheet modeling tool oriented for continued planning and management decision support was also developed and used to aid in the evaluation of management scenarios. STUDY FmiNGS AND CONCLUSIONS TO DATE From the information gathered and analyzed during this study, conclusions were drawn in five key areas that should form the foundation for completing a management plan for the Cane Creek Reservoir and Watershed. (1) Existing Reservoir Water Quality Current water quality is generally acceptable and in compliance with applicable water quality standards, but is not pristine. As with University Lake and other Piedmont reservoirs, Cane Creek Reservoir receives large loads of nutrients that contribute to a range of conditions that have the potential to compromise both public health and aesthetic objectives(Chapter 2). Potential changes in land use may increase the threat of excessive nutrient loading. (2) Current Protection Measures Modeling analyses indicate that development regulations and practices currently in place are not sufficient to prevent future water quality deterioration from anticipated new residential development. Although agricultural sources in the watershed currently contribute substantial contaminant loads to the reservoir, continued implementation of best management practices for dairy operations under time tables specified by North Carolina Administrative Code 15A NCAC 2H .0200 appear adequate to protect the reservoir from further degradation attributable to agricultural sources(Chapter 4). E-4