Mississippi Administrative Code › Title 26 - Oil and Gas › Part 2 - WIDE RULES AND REGULATIONS (Order No. 201-51) › Chapter 1 › Rule 26-2-1.62 - STORAGE TANKS, SOUR CRUDE OIL

Current through June 25, 2024
On all storage tanks or batteries of storage tanks where there is stored, either permanently or temporarily, crude oil, distillate or condensate produced from an oil well or a gas well where any hydrogen sulphide (H2S) is produced in conjunction with the fluid such that the vapor or fumes from such liquid, when measured in the free gas space inside the tank, has a hydrogen sulphide (H2S) concentration in excess of twenty (20) ppm, as measured using a hydrogen sulphide (H2S) detection device of a type capable of measuring hydrogen sulphide concentrations ranging from zero (0) to fifty (50) ppm, the following safety provisions shall pertain, in addition to all other applicable statewide or special field rules:
A.
				All access hatches to the tanks capable of being readily operable shall be kept
				closed securely at all times except when necessary for such hatches to be open
				for inspection and gauging.
B. All
				stairways or ladders leading from ground level to the top of each of such tank
				or tanks shall have installed thereon a gateway or doorway permanently affixed
				in such a manner as to impede further ascent of such ladder or gangway to the
				top of such tank or tanks except through the open gate or door. The gateways or
				doorways shall be kept securely locked except when necessary to gauge or
				inspect such tanks.
C. All fumes
				and vapor in such tank or tanks shall be suitably recovered in a vapor recovery
				unit or flared to the atmosphere. If flared to the atmosphere, fumes and vapor
				shall be flared through a flare stack with a permanent pilot attached thereon
				so that the emissions do not exceed applicable air quality standards.
D. Vapor recovery units shall be suitably
				provided with standby facilities for flaring of fumes and vapors to the
				atmosphere in the event of an upset. Such standby venting and flaring
				facilities shall be the same as those provided for in Paragraph C
				above.
E. A self-contained
				breathing apparatus shall be worn and used by all personnel passing through the
				gateway or doorway provided in Paragraph B above at all times while on the
				ladder or on top of the tank or tanks.
F. All such storage tanks and the nearby
				surrounding area shall be conspicuously marked and posted in a manner advising
				of the presence of potentially lethal fumes and vapors.
G. This rule shall take effect on and after
				July 1, 1971; provided, however, that owners and operators of existing
				installations shall have sixty (60) days from said date in which to comply with
				these rules without incurring any penalty.
H. Penalty: Any person, firm or corporation
				willfully violating any of these rules and regulations shall be punished as
				provided by law.
I. Provided,
				however, that storage tank or tanks within the boundaries of a petroleum
				refinery or petrochemical plant shall be exempt from the provisions of this
				rule.
MCA Section
				   53-1-17(3)
				  (1972)