Chapter 4 — FLOODPLAIN ADMINISTRATOR

904-01. DESIGNATION OF THE FLOODPLAIN ADMINISTRATOR.

• A. The Director of the Sacramento County Department of Water Resources is hereby appointed the Floodplain Administrator, to administer and implement this ordinance and is authorized to promulgate and enforce such rules or regulations consistent with and necessary to implement the purposes, intent, and express terms of this ordinance.

• B. No rules or regulations promulgated by the Floodplain Administrator, or amendments thereof, shall be enforced or become effective until thirty (30) calendar days following the date on which the proposed rules or regulations are filed with the Clerk of the Board of Supervisors.

904-02. RESPONSIBILITIES OF FLOODPLAIN ADMINISTRATOR

The duties and responsibilities of the Floodplain Administrator shall include, but not be limited to the following:

A. Permit Review.

• Review and approve, conditionally approve, or deny Floodplain Management Permit applications in accordance with the provisions of this ordinance. Permit applications under this ordinance may be reviewed concurrently with building permit applications, grading, and erosion control permit applications, and improvement plans.

B. Review and Use of Any Other Base Flood Data.

When base flood elevation data has not been provided in accordance with Section 903-02, the Floodplain Administrator shall obtain, review, and reasonably utilize any base flood elevation and floodway data available from a federal or state agency, or other source, other flooding studies, measured high water elevations from historic flooding events, local topography, or other available information in order to administer this ordinance and establish base flood elevations. Any base flood elevation established by the Floodplain Administrator shall not be lower than the base flood elevation established in the FIS for the same location.

C. Notification of Other Agencies.

In alteration or relocation of a watercourse:

1. Notify affected communities prior to alteration or relocation;

2. Submit evidence of such notification to the Federal Insurance Administration of the Federal Emergency Management Agency; and

3. Assure that the flood-carrying capacity within the altered or relocated portion of said watercourse is maintained.

D. Documentation of Floodplain Development.

Obtain and maintain for public inspection base flood elevations, where available, and flood hazard area designations, and make available as needed certifications required by:

1. Section 906-02 (residential elevations);

2. Section 906-03 (nonresidential elevation or flood-proofing);

3. Section 906-04 (special elevation and wet flood-proofing standard);

4. Section 906-06 (standards for new development); and,

5. Section 906-09 (standards affecting floodways).

E. Map Determinations.

Make interpretations as to the location of the boundaries of the areas of special flood hazard where there is conflict between a mapped boundary and actual field conditions.

F. Remedial Action.

Take action to remedy violations of this ordinance as specified in Section 903-03.

G. Agreements.

Record declarations of land use restriction.

H. Map Changes.

Notify FEMA within six months of changes to the floodplain.