Administrative Code

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Virginia Administrative Code
Title 9. Environment
Agency 25. State Water Control Board
Chapter 91. Facility and Aboveground Storage Tank (AST) Regulation

9VAC25-91-50. Statement of purpose.

The purpose of this chapter is to: (i) establish requirements for registration of facilities and individual ASTs located within the Commonwealth; (ii) provide the department with the information necessary to identify and inventory facilities with an aggregate storage capacity of greater than 1,320 gallons of oil or an individual AST with a storage capacity of greater than 660 gallons of oil; (iii) develop standards and procedures for operators of facilities with an aggregate aboveground storage capacity of 25,000 gallons or greater of oil relating to the prevention of pollution from new and existing aboveground storage tanks; (iv) provide requirements for the development of facility oil discharge contingency plans for facilities with an aggregate aboveground storage capacity of 25,000 gallons or greater of oil that will ensure that the applicant can take such steps as are necessary to protect environmentally sensitive areas, to respond to the threat of an oil discharge, and to contain, clean up and mitigate an oil discharge within the shortest feasible time, where plans must address concerns for the effect of oil discharges on the environment as well as considerations of public health and safety; and (v) provide requirements for facilities and individual ASTs with an aggregate aboveground storage capacity of one million gallons or greater of oil to conduct a groundwater characterization study (GCS) within the geographic boundaries of a facility; to submit the GCS as part of the oil discharge contingency plan; to conduct a monthly gauging and inspection of GCS monitoring wells, monitoring of well headspace and sampling and laboratory analysis of GCS monitoring wells; and to gather all observations and data maintained at the facility and compile and submit them as an annual report to the department.

Statutory Authority

§§ 62.1-44.15, 62.1-44.34:15, 62.1-44.34:15.1 and 62.1-44.34:19.1 of the Code of Virginia.

Historical Notes

Derived from Virginia Register Volume 14, Issue 18, eff. June 24, 1998; amended, Virginia Register Volume 31, Issue 26, eff. November 1, 2015; Volume 39, Issue 5, eff. November 23, 2022.

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