Confining of waters to their original strata

During the drilling of any testhole, all fresh waters and waters of present or probable value for domestic, commercial, or stock purposes encountered must be confined to their respective strata and must be adequately protected by methods approved by the state geologist. Special precautions must be taken in drilling and abandoning of testholes to guard against any loss of artesian water from the strata in which it occurs, and to prevent contamination of artesian water by objectionable water.