- (a) In known artesian territories, initial drilling operations shall extend into but not through the formation confining the water.
- (b) The casing shall be installed and the annular opening between the drill hole and casing sealed with cement or bentonite grout and allowed to set.
- (c) The hole shall then be extended into artesian formation.
- (d) Flow control from the well shall be provided by valved pipe connections, watertight pump connections, or receiving reservoirs set at an altitude corresponding to the artesian head.