9.18.120 Stormwater Management Plan Required for Regulated Projects.
   A.   All Regulated Projects must be accompanied by a Stormwater Management Plan and a completed City of Cupertino Regulated Development Project Checklist, as required by this chapter. The Stormwater Management Plan shall detail how runoff and associated water quality impacts resulting from the activity will be controlled or managed.
   B.   City Permit Requirements. Building, grading, and encroachment permits for Regulated Projects shall not be issued until the required Stormwater Management Plan has been reviewed and approved by the Director of Public Works.
   C.   Stormwater Management Plan Contents. Stormwater Management Plans shall include sufficient information to evaluate the environmental characteristics of affected areas, the potential impacts of the proposed development on water resources, and the effectiveness and acceptability of control measures proposed for managing stormwater runoff. The minimum information submitted to support a Stormwater Management Plan shall be in accordance with the Municipal Regional Permit and the current City of Cupertino Regulated Development Project Checklist.
   D.   Preparation of the Stormwater Management Plan. Stormwater Management Plans shall be prepared, stamped and signed by a professional civil engineer registered in the State of California. Depending on the specific project, the Director of Public Works may allow a stormwater management plan to be prepared by a Landscape Architect licensed by the State of California.
   E.   Certification of Adherence to Numeric Sizing Design Criteria. The developer shall provide a signed certification from an approved third party reviewer selected from the SCVURPPP List of Qualified Consultants for Design, Review and/or Certification of Stormwater Treatment Best Management Practices and Hydromodification Flow Control Facilities, to determine that the plan for proposed stormwater treatment measures, including hydromodification management controls (if applicable), meets the requirements of this chapter and established numeric sizing criteria in the Municipal Regional Permit. Any consultant hired to design and/or construct a stormwater treatment system for a Regulated Project shall not be the certifying person for the project.
   F.   As-Built Certification. Upon completion of construction, the Engineer-of-Record for a Regulated Project shall provide the City with a stamped and signed certification that all constructed stormwater treatment measures have been installed according to the approved plans and specifications.
   G.   Revised Stormwater Management Plan Required. The City may require the owner of a Regulated Project who has previously received approval of a Stormwater Management Plan, to prepare and submit a revised Stormwater Management Plan for approval if the stormwater treatment measures are inadequate or are not being adequately maintained; or if the facility or activity at issue becomes a significant source of contaminants to the storm drain system or damages a downstream watercourse despite compliance with this chapter. Any owner required to submit and to obtain approval of a revised plan shall install, implement and maintain the stormwater treatment measures specified in the approved revised plan. (Ord. 23-2248, Att. A (part), 2023; Ord. 2088, § 1 (part), 2012; Ord. 1982, § 1 (part), 2006; Ord. 1967, § 1 (part), 2005; Ord. 1922, § 1 (part), 2003)