Tehama County Municipal Code Art. III Administration

A development permit shall be obtained before any construction or other development begins within any area of special flood hazard established in Section 15.52.230. 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:

A. Site plan, including but not limited to:

1. Location, dimensions, and elevation of the area in question, existing or proposed structures, storage of materials and equipment and their location, and

2. For all proposed structures, spot ground elevations at twenty-foot or smaller intervals along the foundation footprint, or one foot contour elevations throughout the building site, and

3. Proposed locations of water supply, sanitary sewer, and utilities, and

4. If available, the base flood elevation from the flood insurance study and/or flood insurance rate map, and

5. If applicable, the location of the regulatory floodway; and

6. Base flood elevation information as specified in Section 15.52.230 or 15.52.330(B) of this chapter, as applicable, and

B. Foundation design detail, including but not limited to:

1. Proposed elevation in relation to mean sea level, of the lowest floor (including basement) of all structures, and

2. For a crawl-space foundation, location and total net area of openings as required in Section 15.52.410(C)(3) of this chapter and FEMA Technical Bulletins 1-93 and 7-93, and

3. For foundations placed on fill, the location and height of fill, and compaction requirements (compacted to ninety-five percent using Standard Proctor Test method); and

C. Proposed elevation in relation to mean sea level to which any nonresidential structure will be floodproofed, as required in Section 15.52.410(C)(2) of this chapter and FEMA Technical Bulletin 3-93; and

D. All appropriate certifications listed in Section 15.52.330(D) of this chapter; and

E. Description of the extent to which any watercourse will be altered or relocated as a result of proposed development.

(Ord. 1708 § 2(part), 1999)

(Ord. No. 1917, §§ 8, 9, 4-28-2009)

The building official is hereby appointed to administer, implement, and enforce this chapter by granting or denying development permits in accord with its provisions.

(Ord. 1708 § 2(part), 1999)

A. Permit Review. Review all development permits to determine that:

1. Permit requirements of this chapter have been satisfied;

2. All other required state and federal permits have been obtained;

3. The site is reasonably safe from flooding; and

4. The proposed development does not adversely affect the carrying capacity of areas where base flood elevations have been determined but a floodway has not been designated. For purposes of this chapter, "adversely affects" shall mean that the cumulative effect of the proposed development when combined with all other existing and anticipated development will increase the water surface elevation of the base flood more than one foot at any point.

5. Where applicable, all letters of map revision (LOMR's) for flood control projects are approved prior to the issuance of building permits. Building permits may not be issued based on conditional letters of map revision (CLOMR's).

B. Review and Use of Any Other Base Flood Data. When base flood elevation data has not been provided in accordance with Section 15.52.230, 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, in order to administer Article 4.

If no base flood elevation data is available from a federal or state agency or other source, then a base flood elevation shall be obtained using any of the methods from the FEMA publication "Managing Floodplain Development In Approximate Zone A areas - A Guide For Obtaining And Developing Base (100-year) Flood Elevations," dated July 1995.

C. Notification of Other Agencies. In alteration or relocation of a watercourse:

1. Notify adjacent communities and the California Department of Water Resources prior to alteration or relocation;

2. Submit evidence of such notification to the Federal Insurance Administration, Federal Emergency Management Agency within six months after the data becomes available; and

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

D. Base Flood Elevation changes due to physical alterations:

1. 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).

E. Changes in corporate boundaries: The floodplain administrator shall notify FEMA in writing whenever the boundaries of the area subject to the regulatory jurisdiction of the County of Tehama have been modified by annexation or other means and include a copy of a map of the community clearly delineating the new corporate limits.

F. Documentation of Floodplain Development. Obtain and maintain for public inspection and make available, as needed the following:

1. Certification required by Section 15.52.410(c)1. (lowest floor elevations);

2. Certification required by Section 15.52.410(c)2. (elevation or floodproofing of nonresidential structures);

3. Certification required by Sections 15.52.410(c)3. (wet floodproofing standard);

4. Certification of elevation required by Section 15.52.430(b) (subdivision standards);

5. Certification required by Section 15.52.460 (floodway encroachments).

G. Map Determinations. Make interpretations, where needed, as to the exact location of the boundaries of the areas of special flood hazard; for example, where there appears to be a conflict between a mapped boundary and actual field conditions. The person contesting the location of the boundary shall be given a reasonable opportunity to appeal the interpretation as provided in Article 5, Variance and Appeal Procedure.

H. Remedial Action. Take action to remedy violations of this chapter as specified in Section 15.52.240.

(Ord. 1792 § 4, 2003)

(Ord. No. 1917, §§ 10, 11, 4-28-2009)