To accomplish the regulatory goals of the district, to pay the district's maintenance and operating costs, and to pay any bonds issued by the district, the district may:(1) impose an ad valorem tax at a rate not to exceed 2.5 cents for each $100 of taxable value of property in the district, subject to voter approval;(2) assess production fees as authorized by Section 36.205, Water Code;(3) solicit and accept grants from any public or private source; and(4) assess:(A) an export fee on groundwater exported from the district in an amount not to exceed 150 percent of the maximum wholesale water rate charged by the City of Houston; and(B) other fees authorized by Chapter 36, Water Code. Added by Acts 2009, 81st Leg., R.S., Ch. 1139 (H.B. 2619), Sec. 1.05, eff. April 1, 2011.Amended by: Acts 2015, 84th Leg., R.S., Ch. 529 (H.B. 1421), Sec. 1, eff. June 16, 2015.