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Agenda - 03-12-2013 - 2
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Agenda - 03-12-2013 - 2
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6/9/2015 10:47:03 AM
Creation date
3/8/2013 2:12:11 PM
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BOCC
Date
3/12/2013
Meeting Type
Work Session
Document Type
Agenda
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2
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Minutes 03-12-2013
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\Board of County Commissioners\Minutes - Approved\2010's\2013
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ATTACHMENT C <br />CONSENSUS PRINCIPLES TO GUIDE <br />FALLS LAKE NUTRIENT MANAGEMENT STRATEGY <br />Falls Lake is currently classified by the North Carolina Environmental <br />Management Commission (EMC) as WS -IV, B: NSW, CA. Pursuant to this <br />classification, the designated uses of Falls Lake include aquatic life propagation <br />and biological integrity (including fishing and fish), wildlife, primary and <br />secondary recreation, agriculture, and water supply. Falls Lake serves as a water <br />supply for the City of Raleigh (Raleigh) and six other municipalities in Wake <br />County. <br />2. The EMC has established a water quality standard for chlorophyll -a of 40 ug/L to <br />protect the designated uses of all waters in the state, including Falls Lake. <br />3. Since the time it was constructed, portions of Falls Lake have experienced <br />nutrient conditions that have contributed to monitored exceedances of the <br />chlorophyll -a standard. In 2005, the General Assembly directed the EMC to <br />develop a nutrient management strategy for Falls Lake. The legislation was <br />amended so that the nutrient management strategy and implementing rules are to <br />be established no later than January 15, 2011. <br />4. In 2008, the Division of Water Quality (DWQ) found that the chlorophyll -a levels <br />at certain locations in Falls Lake exceeded the water quality standard. The EMC <br />found, in the 2009 Neuse Basin Plan, that new nutrient management measures <br />were needed to address nutrient - related problems in Falls Lake. <br />5. The level of nutrient loading reductions necessary to protect and improve water <br />quality in Falls Lake make it appropriate to establish a two -stage nutrient <br />management strategy — the first stage (Stage 1) designed to achieve the water <br />quality standard for chlorophyll -a in the lower lake below Highway 50 (Lower <br />Lake), where the water supply intake is located, and to improve water quality in <br />the upper lake above Highway 50 (Upper Lake), and the second stage (Stage 2) <br />designed to further address water quality in the Upper Lake. <br />6. The first stage of nutrient loading reductions and protection measures for Falls <br />Lake, as described below, are designed to achieve sufficient improvements in <br />water quality to result in the removal of the Lower Lake from the 303(d)' list of <br />impaired waters by 2021. <br />7. The Stage 1 management measures should include reductions in loading from all <br />major categories of sources including point sources, agriculture and other <br />fertilizer using activities, new development, and existing development. <br />a Under Section 303(d) of the U.S. Clean Water Act, waters of the state that have water quality violations <br />resulting in the failure to meet the designated and protected uses are designated as "impaired ". <br />
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