6-20-18. Defensible space.

(1) Fuel modification shall be provided within a distance from buildings or structures as specified in Table 1. Distances specified in Table 1 shall be measured along the grade from the perimeter or projection of the building or structure.
(2) Persons owning, leasing, controlling. operating, or maintaining buildings or structures requiring defensible spaces are responsible for modifying or removing nonfire-resistive vegetation on the property owned, leased or controlled by such person.
(3) Ornamental vegetative fuels or cultivated ground cover, such as green grass, ivy, succulents or similar plants used as ground cover, are allowed within the designated defensible space provided they do not form a means of readily transmitting fire from the native growth to any structure.
(4) Trees are allowed within the defensible space provided the horizontal distance between crowns of adjacent trees, and crowns of trees and structures, overhead electrical facilities, or unmodified fuel is not less than ten feet. Deadwood and litter shall be regularly removed from trees.
(5) Nonfire-resistive vegetation or growth shall be kept clear of buildings or structures in such a manner as to provide a clear area for fire suppression operations.
(6) Notwithstanding Table 1, the net free area of the spark arrester shall not be less than four times the net free area of the outlet of the chimney. (Ord. 02-12, 05/21/02)

TABLE 1, REQUIRED DEFENSIBLE SPACE

Wildland/Urban Interface and Intermix Areas	Fuel Modification Distance in Feet
Moderate hazard	30
High hazard	50
Extreme hazard	100