Agenda - 02-28-1990 - Laserfiche WebLink

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Orange Water and Sewer Authority 400 Jones Ferry Road I OWASA 1 P.O. Box 366 Carrboro, NC 27510 (919) 968-4421 MEMORANDUM TO: Board of Directors FROM: Everett Billingsley DATE: February 12, 1990 SUBJECT: University Lake Watershed Study The attached memorandum of February 9, 1990 from Ed Holland analyzes a series of proposals that have been made for revised land use regulations on the University Lake watershed. This systematic comparison shows, particularly in the graphs, the degradation impact of the various scenarios. With the extensive involvement and representation of the staffs and elected officials in the development of the Camp Dresser & McKee study, it seems tardy to suggest changes that would allow such major increases in degradation of projected water quality as does the most recent proposal by the Orange County Planning Department. Since the County's proposal cannot be evaluated as diiectil- by the CDM model as other scenarios, it creates a particularly tenuous situation. If a scenario outside this modeling capability is chosen, the decision basis is substantially weaker and further proposals for either relaxing or tightening standards are more difficult to evaluate technically. Assuming that investigated alternatives for land use scenarios will be kept within the CDM model capability, particular attention is warranted in examining the projected degrees of water quality degradation for each scenario. The CDM recommendation for basic 5-acre density assumed a continuous but constrained degradation of water quality. All other scenarios that have been proposed accelerate the degradation of the community water supply. It is important to reflect again on bow the CDM model and recommended scenarios were developed, the pertinence of the CDM model as a planning tool, and the degree of departure each proposed alternative scenario represents from the consultant's recommendation. . An Equal opportunity Employer