Whenever any well is abandoned, it shall be the obligation of the permittee and the operator of the well to set a two hundred foot (200') cement plug in the bottom of the surface casing, with the bottom of the plug one hundred feet (100') below the surface casing section; and to set a fifty foot (50') cement plug in the top of the surface casing. No surface or conductor string of casing may be pulled or removed from a well. During initial abandonment operations it will be the obligation of the permittee and operator to flood the well with mud laden fluid weighing not less than nine (9) pounds per gallon, and to circulate this mud until stabilized, and the well shall be kept filled to the top with mud laden fluid of the weight herein specified, at all times; mud laden fluid of the above specifications will be left in the well bore below and between cement plugs. Any additional provisions or precautionary measures prescribed by the state or the corporation commission of the state in connection with the abandonment and plugging of a well shall be complied with by the permittee. (Ord. 528 §1, 1982)