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• Fill Z <br />~) The de~~atzrinv tinre for this pond is 1?~ dais. [Y pond ? ~~as to till ~~ith carer tram <br />,y a 10 _~ zar storm event. ho~~ ~~ould ~~atzr be remo~ zd from storage within a reasonable <br />~M' ~ timz [o allo~~ for proper treatment of subsequznt stomt e~'en[s? <br />Fill 3 <br />h) The crest and entereencv spillwac Values differ benvezn EX l~-la and thz design <br />infomta[ion. <br />_ y, i) The dztzntion time for this pond appears too short as 1 d00 [ons of sediment leave tlus <br />,PrA`~ structure from the l0-} zaz design stomt even[. This equa[zs to 36.8 tons/acre based <br />on the ~6 acres in the warershzd. While the predicted settlzable concentration <br />appears to mee[ the effluent limitations, this amount of sediment seems excessivel} <br />high. Please re-evaluate to reducz the sediment exiting the structure if possible. <br />Fill i <br />^,.~ j) This pond also should be re-evaluated. as IJ.9 tons. acre of sediment leave this <br />VV"'. structure. <br />• ~ k) Fill ~ required sediment storagz elevation on figure EX I d-1 ~ rzads 6826.68. Please <br />correct. <br />Fi118 <br />p`~- l) Design information for Fill 8 pond was not included in Exhibit 1 ~ matzrials. <br />Response <br />R1 Portal <br />p~ a. The R2 Portal is slated for construction during the second pemtit term. <br />b. Figure EX 15-3A has been modified to show the fact that DSA. D8B, D7B and <br />~~ portions of D7C are adjacent to C 4VD-N. f.abels were also modified on Figure El <br />I~-3B. <br />O~c. As noted above. Figures EX li-3A and EX 1~-3B were modified to re Elect Tablz <br />15-3. <br />u <br />,; <br />