R-6.645-A Purpose and Intent. <br />1. Purpose. These rules implement Sections 6.625 to 6.645 of the Eugene Code, 1971, <br />which were adopted to restrict the discharge of sediments or other construction related materials, <br />including hazardous substances, into the City's stormwater system in order to: <br />1.1 Prevent or minimi~.~, to the maximum extent practicable, negative impacts to <br />adjacent properties, water quality and related natural resources resulting from construction <br />activities; and <br />1.2 Maintain the capacity of the City's stormwater system by minimizing <br />sedimentation. <br />2. Intent. The intent of these rules, in implementing sections 6.625 to 6.645 of the <br />Eugene Code, 1971, is to ensure that construction related activities prevent or minimize erosion, <br />sedimentation, and other stormwater related problems identified in subsection 1 above. To carry-out <br />the intent of the these rules, it is the goal of the City's erosion prevention program to review and <br />respond to all erosion permit applications in a timely manner so that these provisions do not increase <br />the time frame for issuing other permits. These rules are designed to provide developers and property <br />owners with broad discretion for addressing potential impacts of construction related activities, so <br />long as the erosion prevention measures achieve the desired outcomes. Therefore, except for the <br />wet-weather requirements contained in R-6.645-D-2, these rules do not specify or mandate the use <br />of certain erosion prevention measures; and instead, provide applicants with flexibility to choose or <br />design erosion prevention measures subject to review by the City. The issuance of an erosion <br />prevention permit by the City will not necessarily reflect concurrence by the City that the proposed <br />measures will work. Instead, the City's review may be more limited in many cases, relying on the <br />certification of the owners' certified professional that the proposed measures will achieve the <br />mandated outcomes. In such cases, the City's review may be limited to making an evaluation that <br />the proposed measures address anticipated impacts. Where the City is uncertain about the likely <br />success of the proposed measures, the City may issue the permit, and monitor the site to determine <br />whether the measures are achieving the outcomes. If the erosion prevention measures have not been <br />successful in achieving those outcomes, the City may require the submission of 'an amended <br />construction site management plan or implementation of other changes or measures that will ensure <br />compliance in achieving the outcomes. <br />R-6.645-B Definitions. <br />In addition to the definitions contained in Sections 6.406 of the Eugene Code, 1971, as used <br />in these rules, the following words and phrases mean: <br />Adjacent property. Property in close proximity to a construction site, and potentially <br />subject to erosion, sedimentation, or construction material. impacts resulting from the <br />Administrative Rule - 2 <br />r:\adu-inoni\iules\OOemspteW2ao.wpd(12/07100) <br />