Water Resources Impacts and Strategies March 2012 Impact: Flooding Increased flooding will have impacts on ecosystems and agricultural land due to high intensity rainfall or rainfall that comes when resources are most vulnerable to change. Sediment and nutrient loading will increase due to earlier and more intense spring runoff events. Impact: Invasive Species Increased spread of aquatic invasive species due to changes in hydrology, water temperatures, and warmer winter conditions. Steve Sibell Adaptation Strategy: Reverse the loss of wetlands and restore priorconverted wetlands in upland areas to provide storage and filtration and mitigate storm flows and nutrient loss downstream. Identify and map potentially restorable wetlands in floodplain areas. Adaptation strategy: Identify potential pathways for invasive species migration under changing climate regimes and take preventive action. Develop rapid response planning and implementation methods for control programs Adaptation strategy: Continue education and awareness programs for boaters, anglers and others. Encourage regulatory activities aimed at preventing future invasions of species likely to survive in warmer temperatures Marc Gaden Herb Garn Adaptation strategy: Resize infrastructure such as manure storage facilities, wastewater facilities and stormwater drains to accommodate increased flows. Develop farm-based nutrient management plans to handle more runoff Identified Impact: Drought and Groundwater Depletion Seepage lake levels will change due to variable precipitation, recharge, or increased evapo-transpiration. Groundwater extraction will increase with drought and warmer temperatures causing more demand for water during the growing season. Adaptation strategy: Adjust and modify expectations and uses, especially of seepage lakes; recognize that some lakes may not be suited for all uses such as recreational boating in shallow waters. Account for changes in water levels in planning and zoning standards for lakeshore development. Mark Rozin/Capital Press Adaptation strategy: If aquifer is low, enhance infiltration by reducing impervious surfaces in urban/riparian areas and changing land management practices, such as from agriculture to forestry. Tim Asplund For Lakes Adaptation strategy: Enhance and restore shoreline habitat (course wood, littoral and riparian vegetation, bio-engineered erosion control) to withstand variations in water level. For Groundwater Adaptation strategy: Promote Integrated Water Management: Planning water use based on long term projections of supply and demand and tied to land use and economic growth forecasts. Encourage large water users to locate in areas with adequate (sustainable) water resources, such as near large rivers or the Great Lakes Adaptation strategy: Encourage water conservation (rural and urban) through incentives and regulation Impact: Algal Blooms Harmful blue-green algal blooms will occur more frequently with increased summer temperatures Adaptation strategy: Increased monitoring of inland beaches for blue-green algal toxins Adaptation strategy: Develop statewide standards for blue-green algal toxins Carolyn Rumery Betz Adaptation Strategy: Work with municipalities and counties to develop minimum design standards for the control of the impacts from development on high water. Regulatory control should extend to the 100year storm event. Additional stormwater storage capacity should be considered.