Current through Register Vol. 49, No. 13, September 23, 2024
Subpart
1.
Identification number.
The owner or operator shall not treat or store a hazardous
waste in an elementary neutralization unit, pretreatment unit, wastewater
treatment unit, or combustion waste facility without having received an
identification number. An owner or operator who has not received an
identification number may obtain one using agency forms.
Subp. 2.
Security.
The owner or operator shall prevent the unknowing entry, and
minimize the possibility for the unauthorized entry, of persons or livestock
into or onto the elementary neutralization unit, pretreatment unit, wastewater
treatment unit, or combustion waste facility unless:
A. physical contact with the waste contained
in the unit or facility will not injure unknowing or unauthorized persons or
livestock which may enter the unit or facility; and
B. disturbance of the waste or equipment by
the unknowing or unauthorized entry of persons or livestock into or onto the
unit or facility will not cause a violation of the requirements of parts
7045.0652 and
7045.0655.
Subp. 3.
Inspection
requirements.
Inspection requirements are as follows:
A. The owner or operator shall inspect the
elementary neutralization unit, pretreatment unit, wastewater treatment unit,
or combustion waste facility for malfunctions and deterioration, operator
errors, and discharges which may be causing or may lead to unauthorized release
of hazardous waste to the environment or a threat to human health. The owner or
operator shall conduct these inspections often enough to identify problems in
time to correct them before they harm human health or the
environment.
B. The owner or
operator shall develop and follow a written schedule for inspecting all
monitoring equipment, safety and emergency equipment, security devices, and
operating and structural equipment, such as tank walls and pumps, that are
important to preventing environmental or human health hazards. The owner or
operator shall keep this schedule at the facility. The schedule must identify
the types of problems, such as malfunctions, or deterioration, which are to be
looked for during the inspection, such as inoperative pump, leaking fitting,
and heavy corrosion.
C. The
frequency of inspection may vary for the items on the schedule. It should be
based on the rate of possible deterioration of the equipment and the
probability of an environmental or human health incident if any deterioration
or malfunction or operator error goes undetected between inspections.
D. The owner or operator shall remedy any
deterioration or malfunction of equipment or structures detected in an
inspection. This must be done on a schedule which ensures that the problem does
not lead to an environmental or human health hazard. Where a hazard is imminent
or has already occurred, remedial action must be taken immediately.
E. The owner or operator shall record
inspections in an inspection log and shall keep these records for at least
three years from the date of inspection. These records must include the date
and time of each inspection, the name of the inspector, a recording of the
observations made, and the date and nature of any repairs or other remedial
actions taken as a result of inspection observations.
Subp. 4.
Operating requirements.
Operating requirements are as follows:
A. The owner or operator of an elementary
neutralization unit, pretreatment unit, wastewater treatment unit, or
combustion waste facility shall ensure that the treatment process conducted in
the unit or facility does not:
(1) generate
extreme heat or pressure, fire or explosion, or violent reaction unless the
process is permitted to handle these types of reactions;
(2) produce uncontrolled toxic mists, fumes,
or gases in sufficient quantities to threaten human health;
(3) produce uncontrolled flammable fumes or
gases in sufficient quantities to pose a risk of fire or explosion;
(4) damage the structural integrity of the
tank or equipment containing the waste; or
(5) through like means threaten human health
or the environment.
B.
Hazardous wastes or treatment reagents must not be placed in an elementary
neutralization unit, pretreatment unit, wastewater treatment unit, or
combustion waste facility if they could cause the unit or facility or any of
its equipment to rupture, abnormally corrode, or otherwise fail before the end
of its intended life.
C. An
elementary neutralization unit, pretreatment unit, or wastewater treatment unit
must be constructed of sturdy leakproof material and must be designed,
constructed, and operated so as to prevent hazardous waste from being spilled
or leaked into or on any land or water during the operating life of the
unit.
Subp. 5.
Manifest system, record keeping, and reporting.
The owner or operator of an elementary neutralization unit,
pretreatment unit, or wastewater treatment unit shall comply with the following
requirements with respect to hazardous wastes received from off-site sources:
part
7045.0474, Manifest system; part
7045.0476, Manifest discrepancies;
part
7045.0478, subparts
2 and
3, items A to C, Operating
record; and part
7045.0482, subparts
2 and
3, Required reports.
Within 15 days after any spill or leakage of hazardous waste
from an elementary neutralization unit, pretreatment unit, wastewater treatment
unit, or combustion waste facility, the owner or operator of the unit or
facility shall submit a written report to the commissioner which contains the
following information:
A. name,
address, and telephone number of the owner or operator;
B. name, address, and telephone number of the
facility;
C. date, time, and nature
of the incident;
D. name and
quantity of material involved;
E.
the extent of injuries, if any;
F.
an assessment of actual or potential hazards to human health or the
environment, where this is applicable; and
G. estimated quantity and disposition of
recovered material that resulted from the incident.
Subp. 6.
Closure.
At closure, the owner or operator of an elementary
neutralization unit, pretreatment unit, or wastewater treatment unit shall
remove all hazardous waste and hazardous waste residues from the unit.
At closure, the owner or operator of a combustion waste
facility shall analyze the waste present in the facility in accordance with
parts
7045.0102 to
7045.0155 and shall submit the
waste analysis results and proposed closure methods to the commissioner. Based
on the waste analysis and proposed closure methods, the agency shall determine
which closure standards from parts
7045.0450 to
7045.0551, if any, apply to the
facility.
Subp. 7.
Treated wastes.
Treated waste generated by an elementary neutralization unit,
pretreatment unit, or wastewater treatment unit is subject to regulation under
parts
7045.0102 to
7045.0320.
Statutory Authority: MS s
116.07
