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CONSULTANT SERVICES REPORT <br /> Our firm, The ARBORIST Inc., has been hired by the City of Eugene Public <br /> Works Department to assess, analyze, and recommend a plan of action for <br /> thirty-one trees in the Whiteaker neighborhood. <br /> We hope this report will assist the department in carrying out its mission of <br /> serving its community by protecting its citizens from the potential future <br /> hazards posed by thirty -one decaying urban forest trees in the Whiteaker <br /> neighborhood. <br /> BACKGROUND: <br /> Over the past several decades, the electrical line clearance trimming <br /> practices of EWEB contractors have adversely affected the health and <br /> appearance of the trees in this study. <br /> While the "pruning" that was done to protect over head utility lines may <br /> have been accepted as industry standard at the time, current knowledge and <br /> standards (including the ANSI A -300 pruning standards and Dr. Alex <br /> Shigo's 90 -3 -90 line clearance techniques required for city trees) recognize <br /> the need to change such practices, the results of which are evident in the <br /> unhealthy and structurally dangerous trees we find here. <br /> Tree Health Description <br /> Health is described as natural growth and with the absence of defects, <br /> disease, or rot. All the trees in this study have one or more of these <br /> unhealthy signs. All of the trees appear to have vigor, which is not by itself <br /> indicative of health. For example, a tree can have vigorous growth along <br /> with the presence of extensive health problems. (For a basic rule of thumb <br /> in deciding which trees to replace, refer to the hazard ratings.) <br /> 3 <br />