Ordinance No. 20430 - Laserfiche WebLink

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(e) Disturbed areas shall be re-planted consistent with this section as soon as practicable, but no later than March15 of the calendar year following disturbance; and (f) A 70% survival rate of plantings shall be guaranteed for a 3-year period in the form of a financial deposit, bond or other means sufficient to cover the cost to remove dead and dying species, and to purchase and replant with living species. City staff shall be granted access to the planted area by the property owner as a condition of approval for this use in order to monitor the establishment of the plantings during this 3-year period. (3) Construction Practices. Construction to accommodate a use listed in EC 9.4780(3) shall comply with the following standards: (a) Construction, maintenance, repair, reconstruction and restoration activities shall be planned and timed so as to minimize adverse impacts to water quality; (b) For purposes of this subsection, heavy machinery is defined as motorized or mechanized machinery or equipment capable of deliberately or inadvertently damaging vegetation, or damaging or compacting soil. The following standards shall apply to use of heavy machinery within the /WQ Management Area: 1. The use of heavy machinery shall be the minimum necessary for the use or activity and shall be restricted to those areas where its use is necessary; 2. The use of heavy machinery within the channel shall be limited to the period between June 15 and September 30 except as allowed by permit from the Army Corps of Engineers or Oregon Department of State Lands; and 3. On sites where soils are severely compacted through the use of heavy machinery, the soils shall be tilled or re-tilled to a depth of 6 inches. Construction may also be subject to construction site management practices such as the erosion prevention provisions of EC chapter 6, which apply to, among other things, clearing, grading, grubbing, excavation and filling. (4) Utility Alignment. Routing of new utility lines to accommodate a use listed in EC 9.4780(3) shall be designed so as to minimize adverse impacts to water quality within the /WQ Management Area to the greatest extent practicable. (5) Paved Surfaces. Construction of new paved surfaces to accommodate a use listed in EC 9.4780(3) shall comply with the following standards: (a) Impervious surfaces shall be minimized by constructing the facility or infrastructure with as little impervious surface as allowed by city standards and the Americans With Disabilities Act; (b) Impervious surfaces shall be located as far from the waterway as practicable; and (c) For paved foot paths, lightly used access roads, or low volume parking areas where soils and flat topography will facilitate infiltration of runoff, pervious pavement systems, or other infiltration devices approved by the planning director or city engineer shall be used in lieu of standard impervious paving surfaces to increase infiltration of stormwater where practicable. For the purposes of this subsection, gravel surfaces are considered pervious unless they cover impervious surfaces or are Ordinance - 14