Admin Order 58-16-01 - Laserfiche WebLink

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Comment 2: The definition of "Perimeter Control" allows no stormwater to leave the site in a five-year storm event. This seems unreasonable. Is the correct reading of the rule that they only apply perimeter control measures to stockpiled material? Findings_ Perimeter controls are an option available to protect both exposed soils and stockpiles, butperimeter controls are not the only option During the wet weather season all exposed soil and stockpile areas not protected byperitneter control must be covered. During the non-wet weather season soils and stockpile areas cannot be exposed to precipitation or stormwater runoff without the provision ofsecondary containment, perimeter controls and other approved BMPs. Thus, during the wet-weatber season exposed soils and stockpile areas must be covered, which is our preferred BMP, or other measures must be taken so that no runoff leaves the sitd during any storm events up to a five-year storm, i.e., perimeter controls. During the non-wet weather season the applicant has more options to choose from. They could cover. all soils, provide secondary treatment, which include both a preventative measure and a control measure, or not allow runoff to leave the site during any storm: event up to a five-year storm No changes were made to this rule as a result of this comment. Now, therefore, based on the findings in Administrative Order No. 58-03-01. and the above findings, which are hereby adopted, and pursuant to the authority contained in Sections 2.019 and 6.645 of,the Eugene Code, 1971, I hereby repeal Administrative Order No. 58-00-26-F as of the effective date of this Order, and adopt the Erosion Prevention and Construction Site Management Practices Administrative Rule 6.645, to provide as.follows: EROSION PREVENTION AND CONSTRUCTION SITE MANAGEMENT PRACTIC.'ES ADMINISTRATIVE RULE R-6.645 R-6.645-A Purpose and Intent. 1. Purpose. These rules implement Sections 6.625 to 6-.645 ofthe Eugene Code, 1971, which were adopted to restrict the discharge of sediments or other construction related materials, including hazardous substances, into the City's stormwater system in order to: 1.1 Prevent or minimize, to the maximum extent practicable, negative impacts to adjacent properties, water quality and Related Natural Resource Areas-resulting from construction activities; and 1.2 Maintain the capacity of the City's stop water system, by mininnizing sedimentation. 2, Intent. The intent of these rules, in implementing sections 6.625 to: 6.645 of the Eugene Code, 1971, is to ensure that construction related activities prevent or minimize erosion, Administrative Rule -1 C:Cf FMP\03 ErosionYrev-2ao. ivtrd