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Mr. Rob Tuber <br />August 3, 2015 <br />Page 4 <br />ITEM 12. The scales on the maps (e.g., Figure A2) are incorrect. Please correct these errors. <br />Response: The scale bars have been corrected. Pages Exh. 7-23A-8 through 11, representing <br />Figures A2 through A5, are revised and resubmitted. <br />Exhibit 7-23, Part B <br />ITEM 13. Figure B-1 has pond names that are inconsistent with other parts of the submittal. <br />Please make this consistent. <br />Response: The pond names in Exh. 7-23B and the pond names shown on Exh. 7, Item 23, Figure <br />B-1 have been revised as necessary to track exactly with the names of the same structures in <br />Exhibit 7, Item 23, Part C. Page (Exh.7-2313-1) and Exh. 7 Item 7, Figure B-1 are resubmitted <br />herewith. <br />ITEM 14. Figure B -I is missing the Middle Pond. Please correct. <br />Response: Middle Pond has been added to Exh. 7, Item 23, Figure B-1 and the figure is being <br />resubmitted as noted above. <br />ITEM 15. Table 1 says that the lower portion of the D-2 Ditch will be vegetated. It appears that <br />it should say riprap. Please address this apparent error. <br />Response: The lower reach of Ditch D-2 was modeled as rip -rap lined, with D50 of 6". Exhibit <br />7-2313, Table 1 has been revised accordingly and is resubmitted. The SEDCAD model has not <br />been revised. <br />Exhibit 7-23, Part C <br />ITEM 16. For four of the ponds in Table 1, the peak discharge is the same for primary and <br />emergency spillways. Please address this apparent error. <br />Response: When both the primary and emergency spillways are engaged, SEDCAD does not <br />provide splits on the separate flows in each. When only the primary is engaged, the emergency <br />spillway obviously has "zero" flow. This is an important item as the regulations prohibit use of <br />the emergency spillway in a 10 year storm. Accordingly, we continue to provide the individual <br />spillway flow splits in the 10 year storm mainly to demonstrate that the emergency spillway is <br />not being engaged. However, for the 100 year flow this distinction adds nothing of value, <br />requires a manual interpolating calculation from SEDCAD data which does not appear in the <br />output tables, and cannot be directly verified from the output tables alone. Accordingly, we are <br />modifying the table Exhibit 7-23C, Table 1 to present the 100 year routed outflow from all active <br />