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17.08.030 C. To minimize the need for rescue and relief efforts associated with flooding and generally undertaken at the expense of the general public; D. To minimize prolonged business interruptions; E. To minimize damage to public fa- cilities and utilities such as water and gas mains, electric, telephone and sewer lines, streets and bridges located in areas of spe- cial flood hazard; F. To help maintain a stable tax base by providing for the second use and develop- ment of areas of special flood hazard so as to minimize future flood blight areas; G. To insure that potential buyers are notified that property is in an area of spe- cial flood hazard; and H. To insure that those who occupy the areas of special flood hazard assume re- sponsibility for their actions. (Ord. 1951 § 1 (Exh. A), 2007; Ord. 1374 § 2 (part), 1989) 17.08.040 Methods of reducing flood losses. In order to accomplish its purposes, this chapter includes methods and provisions for: A. Restricting or prohibiting uses which are dangerous to health, safety and prop- erty due to water or erosion hazards, or which result in damaging increases in ero- sion or in flood heights or velocities; B. Requiring that uses vulnerable to floods, including facilities which serve such uses, be protected against flood dam- age at the time of initial construction; C. Controlling the alteration of natural floodplains, stream channels, and natural protective barriers, which help accommo- date or channel floodwaters; D. Controlling filling, grading, dredg- ing, and other development which may increase flood damage; and E. Preventing or regulating the con- struction of flood barriers which will un- naturally divert floodwaters or which may increase flood hazards in other areas. (Ord. 1951 § 1 (Exh. A), 2007; Ord. 1374 § 2 (part), 1989) 17.08.050 Definitions. Unless specifically defined in this sec- tion, words or phrases used in this chapter shall be interpreted so as to give them the meaning they have in common usage and to give this chapter its most reasonable ap- plication: A. "Appeal" means a request fora re- view of the floodplain administrator's in- terpretation of any provision of this chapter or a request for a variance. B. "Area of shallow flooding" means a designated AO or AH zone of the Flood Insurance Rate Map (FIRM). The base flood depths range from one (1) to three (3) feet; a clearly defined channel does not exist; the path of flooding is unpredictable and indeterminate; and velocity flow may be evident. C. "Area of special flood hazard" see "Special flood hazard area." D. "Area of special mudslide (i.e., mud- flow) hazard" means the area subject to severe mudslides (i.e., mudflows). The area is designated as Zone M on the Flood Insurance Rate Map (FIRM). E. "Base flood" means the flood having a one-percent (1 °Io) chance of being 425 (Pleasanton Supp. No. 19.9-07)