1. (a) A maximum allowable injection pressure for each injection well shall be established by the secretary as a permit condition.

   (b)(1) All class I wells operating on other than gravity flow shall be prohibited.

   1. (2) In the case of gravity flow, the positive wellhead pressure for a class I well shall not exceed 35 pounds per square inch gauge.

2. (c) For all wells, the maximum operating pressure shall not be allowed to exceed fracture pressure, except under either of the following conditions:

   1. (1) The development of fractures for well stimulation operations; or
   2. (2) the connection of a class III salt solution mining well to any other class III well for operation as a salt solution mining gallery.

(Authorized by and implementing K.S.A. 2009 Supp. 55-1,117 and 65-171d; effective May 1, 1982; amended, T-86-47, Dec. 19, 1985; amended May 1, 1986; amended March 21, 1994; amended Aug. 6, 2010.)