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<br />-, <br /> <br />between nutrient loading from the basin to inlake phosphorus concentration <br /> <br /> <br />and then a model to describe the relationship between inlake phosphorus and <br /> <br /> <br />chlorophyll a. <br /> <br /> <br />Another significant aspect of the study will be to establish a standard <br /> <br /> <br />for total phosphorus, assuming phosphorus is the limiting nutrient. This <br /> <br /> <br />will be an important part of the study as the reservoir modeling and eval- <br /> <br /> <br />uation of control options will depend on the level of protection required to <br /> <br /> <br />protect the beneficial uses of the reservoir. With the standard recom- <br /> <br /> <br />mended, the modeling effort will be able to identify the "critical load", or <br /> <br /> <br />the total quantity of nutrients that can enter the reservoir on an annual <br /> <br /> <br />basis without exceeding the standard. A task memorandum relating to <br /> <br /> <br />modeling and recommended standard will be prepared. <br /> <br /> <br />A discussion of control alternatives will include a description of each al- <br /> <br /> <br />ternative, its effectiveness in removing pollutants, costs, and a discussion <br /> <br /> <br />of how each can be implemented. The alternatives will include both lake <br /> <br /> <br />restoration measu res and non point control measu res. The most effective <br /> <br /> <br />measures will be recommended th rough this study. Some of the nonpoint <br /> <br /> <br />and lake restoration measures to be considered are: <br /> <br />1. drainage way modification; <br /> <br /> <br />2. detention ponds; <br /> <br /> <br />3. infiltration galleries; <br /> <br /> <br />4. erosion control; <br /> <br /> <br />5. improved flow-through in the reservoir to decrease residence time; <br /> <br /> <br />6. mechanical treatment and return flows to the reservoir; <br /> <br /> <br />7. chemical addition to the lake; <br /> <br />12 <br />