OAR 690-220-0070: Abandonment of Artesian Wells

In addition to OAR 690-220-0040 and 690-220-0050, the flow of artesian water supply wells to be abandoned shall be confined or restricted by cement grout applied under pressure, or by the use of a suitable well packer, or a wooden plug placed at the bottom of the confining formation immediately above the artesian water-bearing zone. Cement grout or concrete shall be used to effectively fill the well to land surface. (See Figure 220-4, 1986.) [ED. NOTE: Figures referenced are available from the agency.]