Item 7: PH - Ordinance on Stormwater Development Standards

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jurisdictions. 3. The applicant has submitted a method and schedule for monitoring the effectiveness of the proposed design once constructed, and a schedule for its maintenance. 4. The applicant has submitted a signed statement that the applicant will replace the alternative pollution reduction facility if the facility does not function as proposed. (c) The requirement in EC 9.6793(3)(a) and EC 9.6793(3)(b) may be adjusted upon a finding that the flow control facility will control flow rates as much as possible and one of the following applies: 1. The area at issue generating runoff is less than 500 square feet of impervious surface and is isolated from the flow control facility; 2. The area at issue generating runoff is less than 500 square feet of impervious surface and it is not technically feasible to drain the untreated runoff to the flow control facility; 3. Constructing facilities to control the flow of runoff from the area at issue would require removal of trees or damage to other natural resources; 4. The area at issue generating runoff is less than 500 square feet of impervious surface and limited access to the area would prevent regular maintenance of the flow control facility. (d) The requirements in EC 9.6793(3)(d) that all flow control facilities be selected from and sited, designed, and constructed according to the flow control provisions and the facility design requirements set forth in the Stormwater Management Manual may be adjusted upon finding that all of the following requirements are met: 1. The proposed alternative design will achieve equal, or superior, results for function (maintaining flow or restricting flow or both), maintainability and safety, and the proposed siting does not adversely affect structures or other properties; 2. The applicant’s written description of the proposed alternative design has been reviewed and approved by the City Engineer. The description of the proposed design submitted for review must include all of the following information for each component of the proposed alternative design: a. Size, technical description, capacity, capital cost, design life, construction process and costs, consequences of improper construction, operation and maintenance requirements and costs; b. Data on the effectiveness of proposed alternative Ordinance - 16 L:\CMO\2006 Council Agendas\M060508\S0605087-attA.doc 4/3/06 - Ordinance includes changes made pursuant to the 1/9/06, 1/10/06 and 2/13/06 PC meetings and the 3/13/06 City Council Work Session.