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<br /> <br />''-< <br /> <br />United States Aqencles <br /> <br />~: <br /> <br />U.S. Geological Survey <br />oox 25286 <br />Denver Federa I Center, au II ding 41 <br />Denver, CO 80225 <br />Phone: 234-3832 <br /> <br />U.S. Geological Survey <br />Publ ic Inquiries Office <br />1961 Stout Street, Room 169 <br />Denver, CO 80294 <br />Phone: 837-4169 <br /> <br />u.s. Bureau of Mines <br />Mine Map Repository <br />Denver Federal Center, Sui ldlng 20 <br />Denver, CO 80225 <br />Phone: 234-4161 <br /> <br />Other <br /> <br />Urban Drainage and <br />Flood Control District <br />2480 W. 26th Avenue <br />Denver, CO 80228 <br />Phone: 455-6277 <br /> <br />Types of I nformat I on <br /> <br />Map sales <br /> <br />Map and publ icatlon <br />sales. <br /> <br />Microfilm collection <br />of mine maps. <br /> <br />Types of Information <br /> <br />Flood control <br />projects and flood <br />plain maps for the <br />Denver Metro area. <br /> <br />Appendix E <br /> <br />A Guideforthe <br />Preparation of Engineering <br />Geology Reports in Colorado <br /> <br />An engineering geology report furnishes both technical and <br />non-technical persons with Information related to subdivision <br />development, public works construction, mineral extraction, <br />and other uses. It describes clearly all Important geologic <br />conditions, interprets correctly their Impact on proposect- <br />development activities, and makes recommendations regarding <br />the mitigation of adverse conditions or minerai resource <br />conf II cts. The report prov i des persons I nvo I ved I n the <br />planning, design, construction, finance or review process <br />with geologic Information so that technical decisions can be <br />made. <br /> <br />The gu I de I s I ntended as a framework for many types of <br />geotechnical Investigations. However, it Is designed <br />specifically as a description of the type of geologic <br />Information and analysis that usually is included in <br />engineering geology reports for residential and commercial <br />subdivisions. The guide also lists geology-related <br />Investigations including flooding and water resources, that <br />may be reviewed by governmental agencies other than the <br />Colorado Geological Survey. These investigations usually <br />are discussed as a part of the geotechn I ca I report so that <br />project feas I b i I i ty can be eva I uated in the ear I y P I ann i ng <br />stages. <br /> <br />The size and geo I og I c comp I ex I ty of a project requ I ring <br />eng i neer i ng geo logy reports vary great I y. Th I s var I ab i I i ty <br />necessitates reports different from one another In scope, <br />length, and organization. 8ecause of this wide variation, <br />the geologic Investigations and reports should be flexible <br />and tailored to the specific geologic conditions and Intended <br />land-use. Additionally, certain geologic Interpretations and <br />report recommendations may not be firm or complete In the <br />initial planning stages of a project and supplemental <br />Information or detai led reports may be necessary during later <br />stages of development. Regardless of the project size, <br />stage, or geologic complexity, all pertinent data, <br />Interpetatlons, and recommendations regarding geologic <br />hazards, constraints, or resource confl lets should be <br />presented clearly In the engineering geology report. <br /> <br />Geologic studies of hazardous or minerai resource areas are <br /> <br />61 <br />