Ord 2009-073 - Laserfiche WebLink

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authorize negotiations with the owner for the acquisition by gift purchase, exchange or otherwise of the property or any interest therein or for the making of a grant or loan to the owner to prevent further deterioration in furtherance of the purposes of this division and Article 5, division 5 of Chapter 1 of the Land Development Code. If a determination is made by the Historic Preservation Commission under this subsection, neither the owner or the city may demolish, the historic landmark or subject building structure or feature for 180 days after the date of notice to the owner of the public hearing under subsection (2) b except upon a finding of an imminent threat to public safety by the Chief Building Official under applicable ordinances. Upon a finding of an imminent threat to public safety by the Chief Building Official whether or not notice to the owner and a hearing would be required prior to demolition, the Chief Building Official shall provide notice to the Director of Planning before proceeding with any demolition. SECTION 15. Section 5.1.1.3, Runoff Attenuation, subsection (b), is hereby amended to read as follows: (b) Detention Required. Drainage facilities will be designed and constructed so that the rate of runoff at each existing discharge location from a site after construction shall be equal to or less than the site's runoff prior to construction. Rate of runoff shall be • computed on a 25-year storm peak flow using the City of Austin Drainage Criteria Manual, if a separate water quality pond is required for the development. If a separate water quality pond is not required, the rate of runoff shall be computed on both a two- year and a 25-year peak storm flow using the City of Austin Drainage Criteria Manual. Computation of the rate of runoff shall be based on an assumption of a fully developed contributing drainage area or watershed. SECTION 16. Section 5.4.2.1, Purpose, Applicability, Exceptions and Coordination, subsection (b), Applicability and Exceptions is hereby amended to read as follows: Exceptions. Fill-in drainageways that are not mapped by FEMA are exempt €erm from the requirements of this Division provided that the watershed area contributing to the floodplain that is affected by placement of fill is wholly owned by the applicant. SECTION 17. Section 5.4.2.2, Preservation of Natural Features, is hereby amended to read as follows: Section 5.4.2.2 Preservation of Natural Features altefa4ien shall be allowed in water qttalittzones established tmdef Af4ieles 1, 2 of 0