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accompanying "Notes", on the figure, along with the location of the wooden power poles to provide power to the well, the buried low-pressure gas/oil pipelines, the details of the reconstructed Lupton Bottom Ditch, and the details of the maintenance road to service these features. The dike will not be keyed into the slurry wall but will effectively be a continuous construction of the backfilled, mined pit-slope walls built to finish the shorelines and slopes of the reservoir(s). The backfilled reservoir slopes will be constructed of the same material and in the same manner as that described for the dike, and as was previously described in the Mine and Reclamation Plans (Exhibits D and E). The slurry wall will be constructed outside the location of the mined-through, existing ditch alignment and the reconstructed alignment. No keying of the alignment to the slurry wall will be necessary because the ditch will be lined. 8.) Please see previous descriptions within this Adequacy Review response and note location on the revised Exhibit C and details and "notes" of the pipe construction, materials and location contained in Figure "B" of Attachment "C". 9.) The revised Exhibit E contained within Attachment "B" shows the reclaimed contours of the reservoir shorelines and slopes to the base of the excavation (reservoir base). 10.) Flooding in this portion of the South Platte River (the "Platte") does not occur as effected further upstream in either the steeper-gradient and less urbanized portions of the river system or in the urbanized, rapid-runoff and low-infiltration portions of the river system in the metro-Denver area. Flooding in this portion of the Platte is due to a low-velocity, "backwatering" effect produced by uncontrolled tributary rivers and streams entering the Platte, both upstream and downstream of this site. No flood- control dams exist on the following tributary drainage's that would cause backwater- flooding in this portion of the Platte: Clear Creek, Sand Creek, First, Second and Third Creeks, and the Boulder Creek/St. Vrain system. There will be no increased damage caused by flooding to the banks of the South Platte River due to the proposed mining and reclamation of the Ft. Lupton Sand and Gravel Mine. No further protection of the banks is warranted. As was incorporated into Exhibit G-Water Information of the original application, a copy of the FEMA 100-year floodplain map for this area of the Platte was presented. This map shows that the anticipated and historic flood-elevation on this site is only approximately one-foot above the current topography. The flooding is of the low- velocity, backwatering type. Please see Attachment "E" of this Adequacy Review response. This attachment contains the salient portions of the Weld County Flood Hazard Development Permit application (including the FEMA 100-year floodplain map) and conditional aaoroval of the permit as part of the Use by Special Review for this site, being processed through Weld County. The Urban Drainage and Flood Control's district boundaries do not include any areas further north than Brighton on the Platte River. Weld County has jurisdiction over development in the 100-year floodplain of this site. The Weld County Flood Hazard Development Permit has been conditionally approved. Both FEMA and the Colorado Water Conservation Board have been notified of this Flood Hazard Development Permit request. 4