312 IAC 29-27-2 - Storage tank requirements in hydrogen sulfide (H
Authority: IC 14-10-2-4; IC 14-37-3
Affected: IC 14-37
Sec. 2.
(a) Storage
tanks operated as a part of a production operation at or near atmospheric
pressure creating an area of hydrogen sulfide (H2S)
three (3) feet downwind of an open hatch or atmospheric vent, shall be subject
to the following:
(1) The owner or operator
shall keep all tank hatches closed at all times except when necessary to
inspect or to gauge such tanks.
(2)
The owner or operator shall prevent entry to the storage tank facility by
unauthorized persons. At a minimum, the following security measures shall be
used:
(A) Security fencing is required when
storage tanks are located in an incorporated city or town or within one
thousand (1,000) feet of any of the following:
(i) Occupied dwellings.
(ii) Commercial buildings.
(iii) Places of business.
(iv) Schools.
(v) Churches.
(vi) Government buildings.
(vii) Public parks.
(B) For areas not specified in clause (A), by
security fencing or by locking the hatches on all such tanks when not being
inspected or gauged.
(b) Hydrogen sulfide
(H2S) fumes and vapors from atmospheric vents on storage
tanks and separators shall be minimized by one (1) or more of the following
measures:
(1) A vapor recovery unit.
(2) Combustion of tank vapors through a
combustion device with a permanent reliable ignition system attached
thereon.
(3) Installation and
maintenance of suitable carbon filtration devices.
(4) Other means approved by the
division.
(c) Upon
request of the division director, the owner or operator shall conduct
atmospheric monitoring at the perimeter of the storage tank facility from a
point downwind of the tanks to measure hydrogen sulfide
(H2S) concentrations during crude oil loading operations
or when the wells are actively flowing produced fluids into the storage tanks.
Notes
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