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very similaz index and engineering properties; and . <br />(3) . A fill unit consists of material placed during previous~construction <br />activities at a site. A fill unit has similar index and engineering properties. <br />Zone of Influence: That land azea adjacent to vehiculaz access ways that includes <br />the slope easement; the soil structure beneath the road foundation slope profile extended <br />downhill; and the soil layer above the road slope profile extended uphill:. <br />R.9.6710-B P_ u>rpose. <br />These Standazds for Geological and Geotechnical Analysis describe the investigation and <br />report content necessary to ensure that for planning review and approval, public and private facilities <br />in developments in azeas of known or potential unstable soil conditions aze located; designed, and <br />constructed in a manner that provides for the public health; safety, and welfaze. It is a design <br />professional's responsibility to ensure that the final project has sufficient geological investigation <br />to design and construct the proposed facilities for long-term safety, structural stability and soundness. <br />R 9.6710-C ~ Applicability. <br />1. Except for the exemptions set forth in EC 9.6710(3), as reflected in R 9.6710-D, a <br />geological and geotechnical analysis prepared by an Oregon licensed Certified Engineering Geologist <br />or an Oregon licensed Civil Engineer vv~th geotechnical experience is required for: <br />1.1 All proposed tentative planned unit development, site review,. or subdivision <br />applications on properties with slopes equal to or greater than 5%; and <br />1.2 All proposed development that includes dedication or construction of a public <br />street or alley or the construction of public drainage systems or public wastewater sewers. <br />2. All design and construction recommendations for public improvements must be <br />consistent with the adopted City of Eugene Public Improvement Designs Standazds and APWA <br />Standazd Specifications for Public Works Construction and Amendments. <br />3. As provided in EC 9.6710(5); unless exempt, the category of geological and <br />geotechnical analysis required is based on the following. <br />3.1 A Level 1 analysis shall be required on: <br />3.1.1 All development sites with slopes less than 10% that include <br />construction of public improvements; <br />3.1.2 Subdivision, site review; and planned unit development applications <br />for development sites with slopes greater than or equal to 5% and less than 10%; <br />3.2 A Leve12 analysis shall be required on: <br />3.2.1 All development sites with slopes greater than or equal to 10% that <br />include construction of public improvements; <br />3.2.2 Subdivision, site review, and planned unit development applications <br />for development sites with slopes greater than or equal to 10%; and <br />3.3 A Level 3 analysis shall be required on development sites where the Level 1 <br />Administrative Order - 4 <br />r:\adminordlrules\02geotechiao.wpd(09/05/02) <br />