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�n=56 <br /> globally, regionally, and locally have contributed to this reduction. Estimates of reduction since <br /> baseline vary annually because the amount of rainfall influences the amount of wet deposition. <br /> Changing weather patterns are important to consider as well. Large storms not only result in greater <br /> rates of deposition as direct inputs, but they also erode soil, disturb root systems, and increase <br /> runoff volumes and shallow ground water inputs to streams. Drought conditions at critical times can <br /> concentrate nutrients near the land surface and when rainfall occurs, wash larger loads of nutrients <br /> into waters when algal activity can be stimulated. Warmer temperatures for longer periods can <br /> cause biological, chemical, and ecological changes. Together,these factors can result in greater <br /> nutrient loading, increased algal growth and species shifts, and impact to downstream waterbodies. <br /> Therefore, the revised rules should promote projects and activities that are resilient, effective, and <br /> sustainable to provide long-term protection of the lake and the watershed. <br /> The UNRBA recommends that the revised nutrient management strategy employ a systems-based <br /> approach that will require looking beyond the actions of individual landowners and facility operators. <br /> Tier 1 members could fund the following projects and activities to support this holistic effort. The <br /> first three bullets are currently included in the IAIA Program;the remaining bullets represent an <br /> expansion of the Program: <br /> • Green infrastructure/infiltration devices <br /> Floodplain restoration and reconnection <br /> • Projects and activities that focus on flooding that have an associated water quality benefit <br /> • Farmer and forest landowner voluntary conservation work which can significantly contribute to <br /> climate solutions and offer many other ancillary benefits including soil health, water quality, and <br /> pollinator and wildlife habitat within the watershed. <br /> • Climate sustainability and resiliency projects for water/wastewater/stormwater infrastructure <br /> (e.g., elevating key operational equipment like pumps at wastewater treatment plants to mitigate <br /> the risk of failure due to flooding) <br /> • Tree planting adjacent to busy streets and highways, e.g., the Center for Watershed Protection <br /> Forest- Friendly Codes and Ordinance Worksheet and the Wake County Land Cover Analysis and <br /> Tree Canopy Assessment that provides tree-planting priorities by municipality <br /> • Air pollution reduction technologies for point source and vehicle emissions <br /> • Public transportation and green energy sources <br /> • Flood preparedness communications (e.g., operations at watershed impoundments) <br /> Distributed Wastewater Sources <br /> In terms of the total nutrient load delivered to Falls Lake, distributed wastewater sources contribute <br /> a minor fraction of the load. Distributed wastewater sources include septic systems, discharging <br /> sand filter systems, and sanitary sewage releases. However,the smaller tributaries and headwaters <br /> may benefit from projects and activities that reduce nutrient loading. From a public health <br /> perspective,these projects and activities can be very beneficial. <br /> The UNRBA does not recommend regulatory requirements in the revised rules for private <br /> landowners; however, local Health Departments may require private owner action due to violations of <br /> local and state health law and rule. The UNRBA recommends that Tier 1 members work toward their <br /> investment requirements by continuing to provide funding and technical assistance to support <br /> improvements. The activities listed below are currently included in the IAIA Program and should <br /> continue to be eligible under the revised rules: <br /> • Address sanitary sewer overflows (SSO) and sewer exfiltration <br /> 37 <br />