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I I I I I I I I I I I I I I I I I I I PARKVILLE WATERSHEO ASSESSMENT I NTROOUCTl ON ~ver the past few years, Lake County has become increasingly aware of develop- 111ent pressures on certain environmentally sensitive areas of the County. Of im- mediate concern are impacts resulting from potential development of an area known as the Parkville Watershed. The County, in response to this concern, developed a program to evaluate three areas of the Watershed which are described as follows: -Big Evans Gulch -South Evans Gulch -Iowa Gulch Within each of these areas, are a number of physical and cultural features that would affect and be affected by potential development. These are summarized as follows: -Extensive areas of underground mine shafts -Mine tailing areas -Steep slope conditions -Flood hazard areas -Sensitive bog ecosystems -Geologic hazard areas -Mineral resource areas -Wildlife migratory routes -Esthetics -Water resources The above is not all i nc 1 us i ve in that the study areas represent a number of com- rlex ecosystems. It is beyond the scope of this report to describe each ecosystem in detilil, The purpose here is to identify, at a general level, critical areas of concern within the study areas. Each proposed action should be evaluated in teY1l1S af such concerns, ln order to faciliate a systematic review process, an ortho base map of the study at'eas was ,level oped. The ortho maps are at a scale of one inch equals 400 feet. As, noted on these maps, natural and manmade features can be determined. Various spot elevations have also been noted. l'lhile it is possible to identify the development potential within each area, it is beyond the scope of this project to assess the impact of a development in specific terms. For example, a number of mitigating actions may be undertaken within a po- tential development which would minimize impacts upon natural and cultural features. ~s such, it would appear that each proposed action should be assessed in terms of its ovm IPeriL P,n assessment of the Pl'oposed action would be accomplished by the sponsor of the action within the format presented herein. The assessment report would be reviewed by appropriate local, regional and state staff. The Board of County Commissioners would revie\.! staff recommendations along with the assessment report prior to giving, approving or denying a proposed action. \,!ithin each study area are certain features that s,hould remain as they currently exist. These can be described in terms of natural and manmade. An example of the forlller is the bog ecosystem. Tll'e latter can be described in terms of mine tailings. Such areas should be eliminated frolll ilny development consideration.