Contra Costa County |
Ordinance Code |
Title 9. SUBDIVISIONS |
Division 914. DRAINAGE |
Chapter 914-2. MINIMUM REQUIREMENTS |
§ 914-2.002. Onsite collect and convey requirements.
(a)
All portions of the subdivision shall be protected from flood hazard, inundation, sheet overflow and ponding of storm waters, springs and all other surface waters. All finished floors shall be above the water surface of a one-hundred-year frequency storm runoff from the maximum potential development of the drainage basin or watershed.
(b)
All surface waters occurring within the subdivision, as well as all surface waters flowing into and/or through the subdivision, shall be collected and conveyed through the subdivision without damage to any improvement, building site or dwelling which may be constructed within the subdivision.
(c)
Storm drainage facilities within the subdivision shall be designed and constructed in compliance with the requirements of this title and with current ordinance specifications and design standards of the public works department, so as to adequately convey with sufficient freeboard the storm water runoff from the maximum potential development of the drainage basin or watershed.
(d)
As required by Section 94-4.214, the final map or parcel map shall include a dedication to the county or other public agency of land rights for construction, maintenance and operation of all necessary storm drainage and access facilities. The land rights shall conform with the width and other requirements of Chapter 914-14.
(Ords. 89-28, 78-5).