Okla. Stat. tit. 11, § 11-37-110: Establishing water districts - Regulations to protect

water supply.

The governing body of any municipality securing its water supply

from a stream or reservoir located outside of its corporate limits

may designate by ordinance a district to be known as a water

district. The water district shall be designated by metes and

bounds and may embrace any lands, directly or indirectly flowing or

shedding water into any such stream or reservoir as the governing

body ordains. The governing body may adopt and enforce any rules

promulgated by the Board of Environmental Quality for the protection

of any such water supply.