Land deriving benefit from percolation liable to water rate.

(a) Any cultivated land receiving by percolation or leakage from a canal or deriving by surface flow, an advantage equivalent to that which would be given by a direct supply of canal water for irrigation, or (b) any cultivated land irrigated by means of a well situated on either side of a canal, within a distance of 35 metres from the nearest boundary of the canal shall be charged in respect of cultivated land falling under clause (a) a water rate not exceeding that which would ordinarily have been charged for a similar direct supply for the crop or the season during which the water is admitted in the canal, and in respect of cultivated land falling under clause (b), a water rate not exceeding one-half of such rate as may be determined by the Appropriate Authority. Explanation.—For the purposes of this section, land charged under this section shall be deemed to be land irrigated from a canal.