12 Va. Admin. Code § 5-590-1220
All buried distribution pipe shall be provided with sufficient earth or other suitable cover or encasement to prevent from freezing and provide protection from damage by external forces.
§§ 32.1-12 and 32.1-170 of the Code of Virginia.
Derived from VR355-18-01212 § 3.59, eff. August 1, 1991; amended, Virginia Register Volume 37, Issue 20, eff. June 23, 2021.