11/30/2011 Env Bd Packet - Laserfiche WebLink

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These issues are likely to intensify in the future. The METCO prepared and adopted a regional growth strategy that anticipates further urbanization of the City. In addition, transportation improvements in or near the City will facilitate and precipitate urbanization. Without mitigation, the inevitable impacts will be increased volume and increased peak flows of surface water runoff. Sediment loads, and with it pollutants and contaminants, would also likely increase. Fortunately, detailed diagnostic /feasibility studies were completed in 1991 and 1992 for Centerville, Peltier and Bald Eagle Lakes. As part of these studies, intense monitoring was performed on the inlets to these and other lakes. As a result of these studies, implementation projects were completed in the late 1970s through mid 1980s. These detailed lake studies have collected large amounts of information, which should be assimilated into the watershed management and regulatory programs of the City. From a water conveyance point of view, a number of watersheds are expected to experience the most significant increase in runoff flows and volumes under a future development scenario. The RCWD has identified these areas as critical for runoff rate control. RCWD Ditches Following establishment on January 18, 1972, Anoka, Ramsey, and Washington Counties transferred jurisdiction of all public drainage systems (i.e. County and Judicial Ditches,) within the new boundary to the RCWD. The public drainage system within the District is extensive, consisting of more than 20 systems with a total length exceeding 120 miles. Some of the public drainage systems are located within completely urbanized areas, have been totally or partially replaced by storm sewer pipe, and no longer serve agricultural and or provide agricultural benefits. These systems function as the outlet for storm water runoff. Other public drainage systems are comprised nearly entirely of undeveloped /agricultural areas that are primarily forecasted for urban development. Goals & Policies Goal: Use the natural characteristics of the City's watersheds (e.g., pond, swales, wetlands) in combination with development standards and projects, to reduce present and future flood damages and enhance the quality of surface and ground water. Policy: Establish standards for storm water runoff quantity from new and re- developments consistent with RCWD, VLAWMO and NPDES Phase 11 requirements. Policy: Currently, the City is entirely within the legal jurisdiction of RCWD and VLAWMO, which have WCA and water resource permitting programs. The City will remain under RCWD and VLAWMO permitting jurisdiction. The City will coordinate its NPDES Phase 11 responsibility with the RCWD and VLAWMO permitting programs while understanding that ultimate responsibility for implementation of such a program remains with the City. RCWD Goal: Manage and operate drainage systems and manage and use waterways in a manner which recognizes the origin of the system (e.g., constructed vs. natural), the interconnectedness of resources, and present and future conveyance needs, while considering legally established rights. RCWD Policy: Apply methods, procedures, standards and criteria for the maintenance, repair, restoration, rehabilitation, and improvement of drainage systems and waterways, while acknowledging that traditional drainage repairs, to the as- constructed and subsequently improved condition, are generally not going to be feasible or cost effective due to changes in City of Lino Lakes SWMP i October 2011 2 •