Tex. Spec. Dist. Code § 8820.202
A production fee assessed by the district on the amount of groundwater authorized by a permit to be withdrawn from a well or the amount of groundwater actually withdrawn may not exceed:
Added by Acts 2011, 82nd Leg., R.S., Ch. 357 (H.B. 3818), Sec. 1, eff. June 17, 2011.