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=46 <br /> to mitigate impacts from existing land use in the watershed is well-suited to the specific challenges <br /> of addressing non-point source impacts in the watershed using a long-term management approach. <br /> Year 1 of the IATA was hugely successful with all participants meeting or exceeding their minimum <br /> investment requirements. Participants were required to commit$1.5 million to eligible projects and <br /> actions. Annual compliance reporting shows that$5.5 million was committed in the first year. A <br /> wide range of projects were implemented including land conservation, green infrastructure, <br /> stormwater control measures, illicit discharge detection and elimination, and stream restoration. <br /> Stakeholder feedback received in 2022 and 2023 encouraged the incorporation of this investment- <br /> based approach into the revised nutrient management strategy. For example,John Huisman (DWR) <br /> said the IAIA demonstrates "positive momentum in the implementation of the Falls Lake Rules and <br /> the commitment of the local governments to improve water quality" and that "this is a great success <br /> that we can point to as an example for other watersheds." Peter Raabe of American Rivers said, "the <br /> adoption of this approach to improving our water supplies for people and nature is a groundbreaking <br /> modernization of our clean water regulation. It will deliver benefits that communities will see and <br /> appreciate every day and is only possible due to the great work of the UNRBA members and NC <br /> DEQ." <br /> Development of the UNRBA Recommendations for a Revised Management Strategy <br /> The efforts of the UNRBA and other organizations including the Collaboratory have greatly improved <br /> the scientific understanding of the relationship between nutrients and algae in the lake, nutrient <br /> processing, and movement in the watershed, and how those factors should shape a revised strategy <br /> for managing water quality in Falls Lake. Revised policies must consider the science and realities of <br /> how, and to what extent, actions will impact the entire system. Good policy must be built on good <br /> science. <br /> The revised strategy should consider that significant load reductions have occurred since the Rules <br /> were passed, and further reductions will be limited by technological, logistical, and economic <br /> constraints. The outlook for this watershed and lake is promising because the UNRBA recognizes the <br /> importance of protecting Falls Lake, maintaining designated uses, and improving water quality. <br /> There is an established and positive relationship between upstream jurisdictions and downstream <br /> users of the lake. Jurisdictions in this watershed seek to continue and expand the partnership <br /> established between the members of the UNRBA, DEQ/DWR, and the public interest community. A <br /> strategy cannot work effectively unless there is mutual agreement on the actions needed and a <br /> commitment to manage and oversee those actions for the long-term. <br /> Simply using the models to simulate reduced loading until the standard is met will not work as a <br /> regulatory approach. There are significant limitations that existing land use places on the ability to <br /> change nutrient input to the lake. It is essential to establish the link between the watershed and the <br /> lake and acknowledge the sources and relative amounts of loading. <br /> The concepts and principles aim to establish a revised nutrient management strategy consistent with <br /> the long-term realities of how this system responds to changes in the watershed and the length of <br /> the time it will take for water quality in the lake to respond. These challenges are best addressed <br /> through a flexible, progressive management program. The strategy must also include provisions for <br /> ongoing adaptive management plans that continue actions for the long term, assess progress using <br /> an appropriate timeline, and adjust the strategy moving forward. <br /> Falls Lake has a specific and complex relationship with its watershed. Efforts on the ground <br /> intended to improve water quality in the lake are slow to manifest. Any strategy that expects change <br /> to occur quickly is not realistic. Nutrient and water quality management actions and improvements <br /> to lake water quality must be assessed over decades. <br /> 27 <br />