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Ms. Christina Kamnikar Division of Minerals and Geology October 11, ]996 Page 4 2) In order to maintain historic runoff rates in the plant area, two stormwater detention ponds were designed. It was calculated that a total of 2.3 acre-feet of detention is required to account for stormwater quality as well as peak flow detention volumes. A culvert will run under the entrance road connecting the two detention ponds. The 12 inch perforated standpipe outlet of the west pond has a connecting culvert which conveys flows from both ponds into the ditch along State Highway 9. This flow is then conveyed under State Highway 9 through a culvert and eventually ends up in the Blue River. The detention ponds along with the berms and direction of flow are shown on the Process Plant Area map. An example of a perforated standpipe surrounded by a gravel pack is shown in the enclosed detention pond detail. The plant area detention ponds will look similar to this. 3) and 4) Projected water requirements and augmentation analysis is now in progress. L. G. Everist has shown sufficient water rights to cover the consumptive uses in the Exhibit G section. The analysis will be ,submitted on October 18, 1996. D) Exhibit H -Wildlife Information On July 15, 1996 the Colorado Division of Wildlife reviewed our application through the Summit County process. The Division of Wildlife prepared a Project Matrix II using their Summit County information. In this process the DOW analyzes the property and notes animals which may frequent the site. Of the animals noted, the Bald Eagle was the only species in the endangered or threatened status. The Bald Eagle is an endangered species by federal designation in Colorado. Through the years of operation inunediately across the highway, the applicant has occasionally observed solitary eagles in the vicinity. They have never observed a nesting or roosting site on the Maryland Creek Ranch site. The activity by eagles is on the east side of State Highway 9 near the existing gravel lakes and the Blue River. E) Exhibit S -Permanent Manmade Structures Attached with this letter is a copy of an agreement with Public Service Company on [he power lines. The agreement with the Colorado Depaztment of Transportation regazding the State Highway 9 road and ditch is pending. We hope to submit it to you prior to October 21, 1996. The McKay Ditch ends on the Maryland Creek Ranch property, therefore, the ditch is the sole responsibility of L.G. Everist, Inc. The operator will maintain the ditch during and after the operation to support the rangeland activities.