Kan. Admin. Regs. § 4-4-932 - Secondary containment requirements; walls
(a) The walls
of each secondary containment facility shall be constructed of earth, steel,
concrete, solid masonry or any other material approved by the secretary, and be
designed to withstand a full hydrostatic head of any discharged fluid and
weight load of material used in construction.
(b) All cracks, joints, and seams shall be
sealed to prevent leakage.
(c)
Walls constructed of earth or other permeable materials shall be lined as
provided in K.A.R. 4-4-933.
(d)
Earthen walls shall have a horizontal-to-vertical slope of at least three to
one, unless a steeper slope is consistent with good engineering practice, and
shall be packed and protected from erosion. An exterior slope of 30 degrees or
less shall be protected with grass or crushed stone. Slopes greater than 30
degrees and all interior slopes shall be protected with flat road stone or a
similar crushed stone material.
(e) Walls shall not exceed six feet in height
above interior grade unless provisions are made for normal access, necessary
emergency access to tanks, valves and other equipment, and safe exit from the
secondary containment facility.
(f) Walls constructed of concrete or solid
masonry shall rest upon a floating base of concrete prepared as required in
K.A.R. 4-4-933 or upon suitable concrete footings which extend below the
average frost depth to provide structural integrity.
Notes
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