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6.7, 6.8, 6.9
ElkRiver
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_Prior to 1999
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1996
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09-24-1996
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6.7, 6.8, 6.9
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Page 2 <br /> • August 22, 1996 <br /> Mr. James Charest <br /> Currently the low area does not overtop for a 100 year 24 hour rainfall event where P = <br /> 5.9", with a CN of 50 Q is 1.09" of runoff, the volume of runoff then is 1.16 acre-ft. For <br /> the proposed conditions the low area also does not overtop for the 100 year 24 hour rainfall <br /> event where P = 5.9", with a CN of 51 Q is 1.16" of runoff, the volume of runoff is 1.24 <br /> acre-ft. The elevation the proposed conditions runoff will produce in the low area is <br /> approximately 870.18 ft. <br /> If you have any questions or comments please call. <br /> Sincerely, <br /> JOHN OLIVER & ASSOCIATES, INC. <br /> Todd W. McLouth, P.E. <br /> TWM/jtr <br /> • <br /> • Enclosure <br /> File: 7301.2 <br /> • <br />
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