12 Va. Admin. Code § 5-421-2050
Pure water shall be obtained from an approved water system defined as:
§§ 35.1-11 and 35.1-14 of the Code of Virginia.
Derived from Virginia Register Volume 18, Issue 10, eff. March 1, 2002; amended, Virginia Register Volume 32, Issue 22, eff. July 12, 2016.