(a) A test hole will not be required to be drilled in conjunction with modification or conversion of use of an existing or abandoned shaft.
(b) Current commission and the Railroad Commission of Texas regulations shall be used to determine requirements for the mud pit construction, surface cleanup, and test hole closure requirements.
(c) A seismic reflection survey (geophysical survey) will not be required in conjunction with modification or conversion of use of an existing or abandoned shaft.

Source Note: The provisions of this §329.7 adopted to be effective May 13, 1986, 11 TexReg 1978.