(a) This subchapter shall be construed as cumulative authority for the purchase or construction of a waterworks system and shall not be construed to limit or repeal any existing law with reference thereto.
(b)
(1) This subchapter shall, without reference to any other statute, be deemed full authority for the acquisition, construction, improvement, equipment, maintenance, operation, and repair of the waterworks systems provided for in this subchapter and for the issuance and sale of the bonds authorized under the provisions of this subchapter.
(2) This subchapter shall be construed as an additional and alternative method therefor and for the financing thereof.
(3) No petition or election or other or further proceedings in respect to the acquisition or construction of the waterworks systems, or to the issuance or sale of bonds under this subchapter, and no publication of any resolution, ordinance, notice, or proceedings relating to such acquisition or construction, or the issuance or sale of bonds, shall be required except such as are prescribed by this subchapter, any provision or other statutes of the state to the contrary notwithstanding.
(c) All functions, powers, and duties of the State Board of Health shall remain unaffected by this subchapter.
(d) This subchapter, being necessary for the public health, safety, and welfare, shall be liberally construed to effectuate its purposes.