Current through Register Vol. 35, No. 24, December 23, 2024
A. An operator
shall design and construct a recycling containment in accordance with the
following specifications.
(1) The operator
shall design and construct a recycling containment to ensure the confinement of
produced water, to prevent releases and to prevent overtopping due to wave
action or rainfall.
(2) A recycling
containment shall have a properly constructed foundation and interior slopes
consisting of a firm, unyielding base, smooth and free of rocks, debris, sharp
edges or irregularities to prevent the liner's rupture or tear. Geotextile is
required under the liner when needed to reduce localized stress-strain or
protuberances that otherwise may compromise the liner's integrity. The operator
shall construct the containment in a levee with an inside grade no steeper than
two horizontal feet to one vertical foot (2H:1V). The levee shall have an
outside grade no steeper than three horizontal feet to one vertical foot
(3H:1V). The top of the levee shall be wide enough to install an anchor trench
and provide adequate room for inspection and maintenance.
(3) Each recycling containment shall
incorporate, at a minimum, a primary (upper) liner and a secondary (lower)
liner with a leak detection system appropriate to the site's conditions. The
edges of all liners shall be anchored in the bottom of a compacted earth-filled
trench. The anchor trench shall be at least 18 inches deep.
(4) All primary (upper) liners in a recycling
containment shall be geomembrane liners composed of an impervious, synthetic
material that is resistant to ultraviolet light, petroleum hydrocarbons, salts
and acidic and alkaline solutions. All primary liners shall be 30-mil flexible
PVC, 45-mil LLDPE string reinforced or 60-mil HDPE liners. Secondary liners
shall be 30-mil LLDPE string reinforced or equivalent with a hydraulic
conductivity no greater than 1 x 10-9 cm/sec. Liner compatibility shall meet or
exceed the EPA SW-846 method 9090A or subsequent relevant
publications.
(5) The operator of a
recycling containment shall minimize liner seams and orient them up and down,
not across, a slope of the levee. Factory welded seams shall be used where
possible. The operator shall ensure field seams in geosynthetic material are
thermally seamed. Prior to field seaming, the operator shall overlap liners
four to six inches. The operator shall minimize the number of field seams and
corners and irregularly shaped areas. There shall be no horizontal seams within
five feet of the slope's toe. Qualified personnel shall perform field welding
and testing.
(6) At a point of
discharge into or suction from the recycling containment, the operator shall
insure that the liner is protected from excessive hydrostatic force or
mechanical damage. External discharge or suction lines shall not penetrate the
liner.
(7) The operator of a
recycling containment shall place a leak detection system between the upper and
lower geomembrane liners that shall consist of 200-mil geonet or two feet of
compacted soil with a saturated hydraulic conductivity of 1 x 10-5 cm/sec or
greater to facilitate drainage. The leak detection system shall consist of a
properly designed drainage and collection and removal system placed above the
lower geomembrane liner in depressions and sloped to facilitate the earliest
possible leak detection.
(8) The
operator of a recycling containment shall design the containment to prevent
run-on of surface water. The containment shall be surrounded by a berm, ditch
or other diversion to prevent run-on of surface water.
B. Stockpiling of topsoil. Prior to
constructing containment, the operator shall strip and stockpile the topsoil
for use as the final cover or fill at the time of closure.
C. Signs. The operator shall post an upright
sign no less than 12 inches by 24 inches with lettering not less than two
inches in height in a conspicuous place on the fence surrounding the
containment. The operator shall post the sign in a manner and location such
that a person can easily read the legend. The sign shall provide the following
information: the operator's name, the location of the site by quarter-quarter
or unit letter, section, township and range, and emergency telephone
numbers.
D. Fencing.
(1) The operator shall fence or enclose a
recycling containment in a manner that deters unauthorized wildlife and human
access and shall maintain the fences in good repair. The operator shall ensure
that all gates associated with the fence are closed and locked when responsible
personnel are not onsite.
(2)
Recycling containments shall be fenced with a four foot fence that has at least
four strands of barbed wire evenly spaced in the interval between one foot and
four feet above ground level.
E. Netting. The operator shall ensure that a
recycling containment is screened, netted or otherwise protective of wildlife,
including migratory birds. The operator shall on a monthly basis inspect for
and, within 30 days of discovery, report the discovery of dead migratory birds
or other wildlife to the appropriate wildlife agency and to the division
district office in order to facilitate assessment and implementation of
measures to prevent incidents from reoccurring.
