For the purposes of Section 3207, a well is properly completed when it has been shown, to the satisfaction of the supervisor, that the manner of producing oil or gas or injecting fluids into the well is satisfactory and that the well has maintained production of oil or gas or injection for a continuous six-month period. A well is properly abandoned when it has been shown, to the satisfaction of the supervisor, that all proper steps have been taken to isolate all oil-bearing or gas-bearing strata encountered in the well, and to protect underground or surface water suitable for irrigation or farm or domestic purposes from the infiltration or addition of any detrimental substance and to prevent subsequent damage to life, health, property, and other resources.