Section 32.1-173 - Additional or amended permitsA. Any owner intending to make changes, alterations or improvements to a waterworks for which a permit has been granted shall apply to the Commissioner for an additional or amended permit in a manner prescribed by regulations of the Board. The Commissioner shall review and act upon the application in the manner set forth in § 32.1-172. B. The Commissioner may, on his own motion, amend any permit whenever he determines that: 1. The existing permit is no longer valid;2. Changes, alterations, or improvements to the waterworks are necessary to provide an adequate supply of pure water; or3. A change has occurred in the manner of storage or treatment or the source of the water supply.Code 1950, § 62.1-55; 1964, c. 475; 1968, c. 659; 1977, c. 7; 1979, c. 711.Amended by Acts 1979, § c. 711.Amended by Acts 1977, § c. 7.Amended by Acts 1968, § c. 659.Amended by Acts 1964, § c. 475.