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Susan Burgmaier -3- November 18, 2014 <br />a. It is not clear why BRL has revised the estimated flow through Culvert G3 from <br />1.07 cfs to 0.98 cfs. The design information on page Exh. 8 -255 is based on <br />flow of 1.07 cfs, and no design information for this change was provided with the <br />September 24, 2014 submittal. Materials provided for review of TR -87 (not yet <br />incorporated as revised pages) indicate a design discharge of 14.05 cfs, due to <br />increased flow with removal of Culvert F4. Please provide an explanation of <br />and design information for the change in flow value to Culvert G3 <br />presented on revised page EXH -8 -31. <br />BRL: The inconsistency is due to TR -84, 87 and TR -91 being under review at the <br />same time. Updating Culvert G -3 was missed prior to the submittal of adequacy <br />response #1. Attached is a revised page EXH -8 -31 reflecting the TR -84 value. <br />b. BRL revised the Culvert Summary table using out of date flow values for Culverts <br />D1 and D2. The flow values for those culverts were revised to 9.7 cfs with TR- <br />84. Please revise the culvert summary table on page Exh -8 -31 to use the <br />currently approved flow of 9.7 cfs for Culverts D1 and D2. <br />BRL: Page Exh -8 -31 was updated for Culverts D1 and D2. <br />BRL indicated that the flow from Culvert C22 will flow to Ditch C18. Flow from Ditch <br />C18 will subsequently enter Culvert C16 and then Culvert C15 byway of Ditch C22. <br />BRL updated the table on page EXH 8 -31 to include the increase in flow to Culverts <br />C16 and C15, but did not provide design information for the culverts. Please <br />provide design information for Culverts C15 and C16 for incorporation into the <br />permit application package. <br />BRL: Please see design of culverts C -15 & 16 as shown on pages Exh- 8- 32xxviii <br />& 8- 32xxix. In addition, the flow from C -22 must be carried through the remainder <br />of the network. Ditches C6, 7, 8, 11, 14 and 16 have been revised. Culverts C -7 & <br />20 have been revised. Please see revised pages Exh. 8 -64, 65, 66, 69, 72, and 74 <br />and pages Exh. 8 -32vi & 32xxxi. (Note: Flow from Ditch C -6 was revised to remove the flow <br />from Ditch C -11, flow from C -11 enters Ditch C -8 directly.) Pages Exh. 8 -29, 29i and 31 were <br />revised accordingly. <br />c. There are two "F" culverts listed in the culvert summary on page Exh -8 -31: F1, <br />which was subsequently removed on the ground, and F2. Design information for <br />the "F" culverts was previously moved to a table on currently approved page <br />App. B -2 of Volume IX. The flow and culvert size information listed for Culvert <br />F2 on page Exh -8 -31 is inconsistent with the information on page App. B -2 in <br />Volume IX. Please remove Culverts F1 and F2 from the summary on page <br />Exh -8 -31. <br />BRL: Please see revised page Exh -8 -31 which removes reference to "F" culverts. <br />