COM 0178.001 2006-2008 - Laserfiche WebLink

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For all proposed developments and/or subdivisions greater than either fifty lots or five acres, the developer and/or subdivider shall include base flood elevation data within their proposal. ComRly with the requirements of section 27-24. ~e) frF F.11 : ..,.,7 ?,...1 ,.ate al,e ..:~e ..F L.t ....1..1:..:..:..« .,1....,o tl.,. 1.....,. FI,.,.,] ,.1 ,,....ti,.« ?l,e «,.1 01 o.,.,ti..« ..F ?l,o ..:ra « t.. e F.11:«....«A R,e F. «..1 el e..,.F: ,.F N.,..,: a„ ..Fie.. C11:«.. ,.l,,.ll l,e All developments requiring a site drainage elan under section 25- 2-72(3) shall submit such a plan for review and approval by the director of public works. The site drainage plan shall comply sections 27-20(a) and (b) and section 27-24, and shall include a storm water disposal system to contain run-off caused by the proposed development, within the site boundazies, up to the expected one-hour, ten yeaz storm event, as shown in the Department of Public Works "Storm Drainage Standazds," dated October 1970, or anv approved revision, unless those standards specify a greater recurrence interval. The amount of expected runoff shall be calculated according to the Department of Public Works "Storm Drainage Standards," dated October 1970, or anv approved revision, or by any nationally-recognized method meeting with the approval of the director of public works. Runoff calculations shall include the effects of all improvements. (fl Storm water shall be disposed into drywells, infiltration basins, or other approved infiltration methods. The development shall not alter the general drainage pattern above or below the development." After discussing this matter with Mr. Yuen and Mr. Kuba, LRB respectfully submits this information to facilitate the council's review of these bills. Sincerely, h USI.t.`LJ C l~tiJ Leslie Chow Legislative Specialist Serving the /nterests of~e People of Our /sland Hawaii County is an Equa[ Opportunity Provider and Employer