(a) Water shall be supplied to the owners of all lands adjacent to any canal constructed or operated by any such corporation, whenever practicable, upon equal terms and at uniform rates, which shall always be equitable and fair.
(b) However, this subchapter shall not apply to Arkansas County, and Sections 20, 21, 25, 26, 27, 29, 32, 33, 34, 35, and 36, all in Township Two (2) South, Range Six (6) West, of the Fifth Principal Meridian in Prairie County, Arkansas.