There are hereby established use districts to be known as zones one, two, three and four of the drinking water source protection area, identified and described as follows:
A. Zone one is the area within a one hundred foot (100') radius from the wellhead or spring.
B. Zone two is the area within a two hundred fifty (250) day groundwater time of travel to the wellhead or spring, the boundary of the aquifer which supplies water to the groundwater source, or the groundwater divide, whichever is closer.
C. Zone three is the area within a three (3) year groundwater time of travel to the wellhead or spring, the boundary of the aquifer which supplies water to the groundwater source, or the groundwater divide, whichever is closer.
D. Zone four is the area within a fifteen (15) year groundwater time of travel to the wellhead or spring, the boundary of the aquifer which supplies water to the groundwater source, or the groundwater divide, whichever is closer. (Ord. 2003-53, 11-5-2003)