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and reclamation surfaces are included as Map C-3. A.3f Water control structures associated with the proposed activities can be seen on the appropriate plan view maps. The water control structures and locations will differ throughout the pre-mining, mining and final reclamation of the site. A description of water handling can be found in Exhibit G of the CDMG Permit Application. A.3g Importation of materials is planned to occur on this site. The materials will be inert in nature and consist primarily of recycled concrete and asphalt. The materials will be either reprocessed into sellable product or used as backfill material for reclamation of the site. The site will continue to allow importation of materials. A3h Vegetation of the site is discussed in Exhibit J of the CDMG Permit Application. A wetland survey for the site is currently scheduled to take place during the month of May. Once the wetland study's report is complete, the study will be made available to all appropriate agencies. A3i Exhibit B of the CDMG application includes a portion of a USGS quad of the vicinity. A3j The 100-year flood plain can be seen on all plan view maps included in the CDMG Permit Application. A.4 We feel that while the activities proposed in this plan will not measureably increase the risk to the City's Waterworks or Water Supply. However because we cannot state that the activities pose "no" risk, this project would likely fall under a minor impact permit. The following portion of this addendum addresses the spefic concerns involving the Waterworks and Water Supply. A.Sa A study and report was prepared for the city by Schmuesser Gordon Meyer, Inc during the permitting of the Mamm Creek Gravel Pit cuttently operated by Lafarge. This study, titled "Floodplain Study and Report of the Colorado River from Rifle to Mamm Creek," was produced on February 20, 2001, and submitted during the permitting of the pit in 2001. A.56 Reclamation plans for the site can be found in Exhibit E of the CDMG application. Revegetation and seeding plans can be found in Exhibit E of the CDMG Application. A.Sc Information taken from the NCRS soil survey can be seen in Exhibit I of the CDMG Permit Application. A.Sd A geologic description of the site can be found in Exhibit D of the CDMG Permit Application. A.Se The complete mining plan can be found in Exhibit D of the CDMG Permit 5lL6/2005 Page WP-2