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13 <br />ATTACHMENT A <br />TRIANGLE AREA WATER SUPPLY MONITORING PROJECT <br />OBJECTIVES <br />1. Expand the sparse existing data base fbr synthetic organic chemicals to <br />better determine their presence or absence in the region's waters; and, <br />supplement the existing nutrient and trace metal data base for measuring <br />long term trends in mfr water supplies. It is recognized that additional <br />years of data will be needed to detect statistically meaningful changes in <br />water quality. <br />A. Evaluate statistically the effectiveness of alternative sampling <br />plans fbr detecting certain trends during a multi-year monitoring <br />program. <br />2. Provide a basis fbr measuring shorter term, but longlastang, changes due to <br />large scale mangement practices in the watersheds, such as the phosphate <br />detergent ban, treatment plant upgrades, etc. The monitoring program will <br />not be designed to detect short term episodic events, such as 'temporary <br />treatment plant f Uures or chemical spills. <br />3. Document any overall spatial differences among water supplies within the <br />region, especially differences between smaller upland sources (Cane <br />Creek, University Lake, Little River), large multipurpose reservoirs (Falls <br />and Jordan Lakes), and run of river supplies (Neu-se and Cape Fear Rivers). <br />4. Provide additional tributary loading and inlake data that can be used for <br />predictive models of Falls and Jordan Reservoim <br />5. Help determine the rule of stream sediments (particulate matter) in <br />transporting or removing synthetic organic chemicals in the water column. <br />