Yates Lake Topics: FERC requires APC model Smith
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Name:
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keyman
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Subject:
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FERC requires APC model Smith
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Date:
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7/2/2008 8:26:57 PM
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The Federal Energy Regulatory Commission (FERC) issued a letter requesting additional information from Alabama Power Company (APC) regarding Smith Lake Fluctuations. Please file within 45 days from the date of this letter the following additional information. 1. Comparison of Reservoir Elevations and Flow releases under each alternative. Please provide a quantitative analysis of water surface elevations and flow releases for the Smith Lake development of the Warrior River Project (Smith Lake), adequate to evaluate the Smith Lake Improvement and Stakeholders Association, Inc. (Smith Lake Association) alternative. This alternative includes: (a) Smith Lake water levels remain between 505 feet mean sea level (msl) and 510 feet msl between Memorial Day and Labor Day (last week May through first week September); and (b) Smith Lake water levels never drop below 502 feet msl. At a minimum, the analysis should include a simulation of water surface elevations and downstream flows for three yearly inflow data sets representative of high, medium, and low-flow years. We suggest selecting the annual data sets by calculating the average annual or monthly flows for each year and determining the years which best represent the 20 percent, 50 percent, and 80 percent exceedence inflows. In the event that the 20 percent and 80 percent exceedence data sets do not adequately capture the effects for high and low flow years, the analysis may also include yearly inflow datasets which capture the extreme drought year and extreme flood year. The output should include a graphic representation of water levels in Smith Lake under Alabama Power Company’s proposed operation plan and the Smith Lake Association alternative. The output should also include a hydrograph of the associated flow releases from Smith dam, and one or two representative cross-sections downstream of Smith dam, including an area which captures flows at the Gorgas Steam Plant (Gorgas). This output should be provided for each of the high, medium, and low-flow years evaluated.
The entire document can be viewed at the following link.
http://elibrary.ferc.gov/idmws/file_list.asp?accession_num=20080702-3027
SLISA welcomes the modeling request and remains confident that the modeling will prove that the SLISA Alternative will benefit both upstream and downstream users (minus Gorgas).
keyman
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