Figure: 30 TAC §335.590(24)(F)(vi)

"I      (Texas Licensed Professional Engineer)     , Texas P.E. Registration Number           , certify

under penalty of law that I have personally examined and am familiar with the design and

construction of the dikes that are a portion of      (unit name)     .

I further certify that I have evaluated the dike design and materials of construction using accepted

engineering procedures, and have determined that the dike has structural integrity, and:

      (I) Will withstand the stress of the pressure exerted by the types and amounts of wastes to

      be placed in the unit; and

      (II) Will not fail due to scouring or piping, without dependence on any liner system

      included in the unit construction.

                    (Signature)                                                        Date: ______________

(SEAL)"