San Ramon Municipal Code Art. 2 Administration

A. Requirement. Development permits shall be obtained before any construction or development begins so that the floodplain administrator may determine whether such construction or other development is proposed within flood-prone areas. B. Application. Application for a development permit shall be made on forms furnished by the floodplain administrator and may include, but not be limited to: plans in duplicate drawn to scale showing the nature, location, dimensions and elevation of the area in question; existing or proposed structures, fill, storage of materials, drainage facilities; and the location of the foregoing. Specifically, the following information is required: 1. Proposed elevation in relation to mean sea level, of the lowest floor (including basement) of all structures; in Zone AO, elevation of highest adjacent grade and proposed elevation of lowest floor of all structures; 2. Proposed elevation in relation to mean sea level to which any structure will be floodproofed; 3. All appropriate certifications listed in subsection (C)(4) of this section; and 4. Description of the extent to which any watercourse will be altered or relocated as a result of proposed development. C. Notice. Upon receipt of the application the floodplain administrator shall mail or deliver notice to all owners of real property shown on the latest equalized assessment roll within a three hundred- foot radius of the exterior boundaries of the parcel that is the subject of the application for a development permit. The notice shall state that the floodplain administrator will decide whether to approve or disapprove the application on a date specified in the notice and that a public hearing will be held only if requested in writing by any interested person prior to that date. The notice shall be mailed or delivered at least ten calendar days prior to the specified decision date. When a hearing is requested, notice of the hearing shall be given as provided in Chapter D7-IV (Public Hearings) of the City of San Ramon Zoning Ordinance. D. Environmental Review. When a development permit is requested for a project which requires other discretionary approvals from the planning commission or planning director, environmental review under the California Environmental Quality Act shall be conducted by the planning commission or planning director as appropriate. The floodplain administrator shall not act on the development permit application until environmental review has been completed. When a development permit under this Chapter is the only discretionary approval required for the project, the floodplain administrator shall conduct the environmental review prior to acting on the permit application. (Ord. No. 414, §§ 1, 2, 4-28-2009; Ord. No. 508, § 1, 06/22/2021)

Effective on: 7/22/2021 City of San Ramon, CA | Municipal Code 409

The city engineer, or the city engineer's designee, is appointed floodplain administrator to administer and implement this chapter. (Ord. No. 414, §§ 1, 2, 4-28-2009)

The duties and responsibilities of the floodplain administrator shall include, but not be limited to: A. Development Permits. In approving or denying a development permit the floodplain administrator shall review the application to determine: 1. That the permit requirements of this chapter have been satisfied; 2. That all other required state and federal permits have been obtained; 3. That the site is reasonably safe from flooding; 4. That the proposed development does not adversely affect the carrying capacity of the floodway. For purposes of this chapter "adversely affects" means that the cumulative effect of the proposed development when combined with all other existing and anticipated development will not increase the water surface elevation of the base flood more than one foot any point.

The administrator shall be entitled to impose conditions in approving any permit.

B. Development of Substantial Improvement and Substantial Damage Procedures. 1. Using FEMA publication FEMA 213, "Answers to Questions About Substantially Damaged Buildings," develop detailed procedures for identifying and administering requirements for substantial improvement and substantial damage, to include determining "Market Value." 2. Assure procedures are coordinated with other departments/divisions and implemented by city staff. C. Use of Other Base Flood Data. When base flood elevation data has not been provided in accordance with Section C4-43, the floodplain administrator shall obtain, review and reasonably utilize any base flood elevation and floodway data available from a federal, state or other source, in order to administer Article 3 of this chapter. Any such information shall be submitted to the city council for adoption. D. Notification of Other Agencies. 1. Alteration or relocation of a watercourse: a. Notify any adjacent city or Contra Costa County for unincorporated areas and the California Department of Water Resources prior to alteration or relocation; b. Submit evidence of such notification to the Federal Emergency Management Agency; and c. Assure that the flood carrying capacity within the altered or relocated portion of said watercourse is maintained. 2. Base flood elevation changes due to physical alterations: a. Within six months of information becoming available or project completion, whichever comes first, the floodplain administrator shall submit or assure that the permit applicant submits technical or scientific data to FEMA for a Letter of Map Revision (LOMR). b. All LOMRs for flood control projects for new developments are approved prior to the issuance of building permits. Building permits must not be issued based on Conditional

City of San Ramon, CA | Municipal Code 410

Letters of Map Revision (CLOMRs). Approved CLOMRs allow construction of the proposed flood control project and land preparation as specified in the "start of construction" definition.

Such submissions are necessary so that upon confirmation of those physical changes affecting flooding conditions, risk premium rates and floodplain management requirements are based on current data. 3. Changes in Corporate Boundaries. Notify FEMA in writing whenever the corporate boundaries have been modified by annexation or other means and include a copy of a map of the city clearly delineating the new corporate limits.

E. Maintain for Public Inspection and Make Available as Needed: 1. The certification required in Section C4-67A; 2. The certification required in Section C4-67B; 3. The certification required in Section C4-67(C)(3); 4. The certification required in Section C4-67(E)(2) 5. The certified elevation required in Section C4-69B; 6. The certification required in Section C4-72A; F. Make interpretations where needed as to the exact location of the boundaries of the areas of special flood hazards (for example, where there appears to be a conflict between a mapped boundary and actual field conditions). Any interpretation is subject to review by the city council if such review is requested in writing to the city clerk within ten calendar days from the date of the decision. On review the city council may uphold or modify the interpretation upon examining the technical information on which the interpretation is based. Such review does not require a notice public hearing. G. Take action to remedy violations of this chapter, as specified in Section C4-44. (Ord. No. 414, §§ 1, 2, 4-28-2009)