(415 ILCS 35/4) (from Ch. 111 1/2, par. 116.154)
    Sec. 4. Scope.
    No water well pump or equipment shall be installed contrary to the provisions of this Act or any rules and regulations adopted pursuant thereto. The provisions of this Act apply to any water well pump or equipment employed in withdrawing or obtaining water from a well for any use, except wells drilled or used for observation or any other purpose in connection with the development or operation of a gas storage project, or other wells which are otherwise subject to regulation under the laws of this state.
(Source: Laws 1965, p. 3225.)