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1.2 Evaluation of adequacy of the geological and geotechnical investigation and <br /> design recommendations; <br /> . 1.3 Evaluation of proposed engineering and construction methods during the <br /> design phase; and <br /> 1.4 Confirmation of the findings by qualified City inspectors during <br /> implementation of the project. <br /> A report of the required level of investigation must be made and three (3) copies submitted <br /> with the land use development application and/or construction permit application. <br /> R-9.6710-F Level l -Investigation Methods and Report Content. <br /> 1. Simnle Site Characteristic Investigation. A Level l investigation shall consist of: <br /> 1.1 A compilation of record geotechnical data, on-site verification of <br /> the data and <br /> site conditions, and an explanation of the methods used; <br /> 1.2 A report discussing site and soil characteristics in relation to the proposed <br /> development; <br /> 1.3 A measure of slopes in the project area and any office or field evidence of <br /> swelling clay or flooding. <br /> A Level l investigation does not require any digging or drilling at the project site. A Level <br /> 1 investigation must include an examination of existing exposures such as, but not limited to, road <br /> cuts. <br /> 2. Investigation Methods. <br /> 2.1 Literature Surve~and Observations. An estimate of the soiUrock profile shall <br /> be made, based on the following geological and pedooogical literature and maps (required <br /> sources aze in bold) information, when available: <br /> <br /> . 2.1.1 USGS 7.5' Quadrangle Topographic Map. <br /> 2.1.2 USDA Soil Survey of Lane County Area, Oregon (website: <br /> http://ice.or.arcs.usda.gov/website/soils/oregon/or reports or.htm). <br /> 2.1.3 Historical aerial photos' (U of O MAP Library). <br /> 2.1.4 USGS OM-110 (Geology of the Southern and Southwestern Border <br /> Areas of the Willamette Valley, Oregon, 1951). <br /> 2.1.5 USGS Water Resources Paper 2018 (Groundwater Resources of the . <br /> Eugene/Springfield Area, 1973). <br /> 2.1.6 USES 1:250,000 Geologic Map of the Salem Quadrangle. <br /> 2.1.7 Geologic Map of Oregon (USGS, 1991). <br /> 2.1.8 Relative.. Earthquake Hazard Map of the Eugene-Springfield <br /> Metropolitan Area, Lane County, Oregon, IMS-14 Oregon Department of Geology <br /> and Mineral Industries (DOGAMI), 2000. <br /> 2.1.9 Records of former City of Eugene, state, and federal public works <br /> projects at or near the proposed development site. <br /> 2.1.10 Other sources of information about the site, including geology-based <br /> Administrative Order - 6 <br /> r.\adminordlrules\02geotech 1 ao.wpd(09/05/02) <br /> <br />