Current through Register Vol. 48, No. 39, March 25, 2024
Subpart 1.
Groundwater
protection.
The additional information designated in items A to H
regarding protection of groundwater is required from owners or operators of
hazardous waste facilities containing surface impoundments, waste piles, land
treatment units, and landfills, except as otherwise provided in part
7045.0484, subpart
1, item B, and must be
submitted with Part B of the permit application. The following information is
in addition to the information requirements of parts
7001.0560,
7001.0590,
7001.0600,
7001.0610, and
7001.0620:
A. A summary of the groundwater monitoring
data obtained during the interim status period under parts
7045.0590 and
7045.0592, if
applicable.
B. Identification of
the uppermost aquifer and aquifers hydraulically interconnected beneath the
facility property, including groundwater flow directions and rates, and the
basis for the identification, such as the information being obtained from
hydrogeologic investigations of the facility area.
C. On the topographic map required under part
7001.0560, item R, a delineation
of the waste management area, the property boundary, the proposed "point of
compliance" as defined under part
7045.0484, subpart 9, the proposed
location of groundwater monitoring wells as required under part
7045.0484, subpart 11, and, to the
extent possible, the information required in item B.
D. A description of any plume of
contamination that has entered the groundwater from a regulated unit at the
time that the application is submitted that:
(1) delineates the extent of the plume on the
topographic map required under part
7001.0560, item R; and
(2) identifies the concentration of each
constituent listed in part
7045.0143 throughout the plume or
identifies the maximum concentrations of each such constituent in the plume.
The commissioner may require this information on additional constituents if
waste managed at the facility has met the characteristic of lethality as
defined in part
7045.0131, subpart 6.
E. Detailed plans and an
engineering report describing the proposed groundwater monitoring program to be
implemented to meet the requirements of part
7045.0484, subpart 11.
F. Sufficient information, supporting data,
and analyses to establish a detection monitoring program that meets the
requirements of part
7045.0484, subpart 12, including:
(1) a proposed list of monitoring parameters
that complies with the requirements of part
7045.0484, subpart 12, item A or
E, whichever is applicable;
(2) a
proposed groundwater monitoring system;
(3) background values for each proposed
monitoring parameter or constituent, or procedures to calculate such values;
and
(4) a description of proposed
sampling, analysis, and statistical comparison procedures to be utilized in
evaluating groundwater monitoring data.
G. Sufficient information, supporting data,
and analyses to establish a compliance monitoring program that meets the
requirements of part
7045.0484, subpart 13, including:
(1) a description of the wastes previously
handled at the facility, if applicable;
(2) if the presence of hazardous constituents
has been detected in the groundwater at the point of compliance at the time of
permit application, a characterization of the contaminated groundwater
including concentrations of hazardous constituents;
(3) a list of hazardous constituents for
which compliance monitoring will be undertaken in accordance with part
7045.0484, subparts 11 and
13;
(4) proposed concentration
limits for each hazardous constituent, based on the criteria set forth in part
7045.0484, subpart 6, including a
justification for establishing alternate concentration limits in accordance
with part
7045.0484, subpart 7;
(5) detailed plans and an engineering report
describing the proposed groundwater monitoring system, in accordance with the
requirements of part
7045.0484, subpart 11;
and
(6) a description of proposed
sampling, analysis, and statistical comparison procedures to be utilized in
evaluating groundwater monitoring data.
H. For each solid waste management unit at a
facility seeking a permit:
(1) designate the
location of the unit on the topographic map required under part
7001.0560, item R;
(2) designate the type of unit;
(3) provide the general dimensions and a
structural description and supply any available drawings;
(4) specify when the unit was
operated;
(5) specify all of the
wastes that have been managed at the unit, to the extent available;
(6) submit all available information
pertaining to any release of hazardous wastes or hazardous constituents from
each solid waste management unit at the facility; and
(7) conduct and provide the results of
sampling and analysis of groundwater, land surface and subsurface strata,
surface water, or air, which may include the installation of wells, where the
commissioner determines it is necessary to complete a facility assessment that
will determine if a more complete investigation is necessary.
Subp. 2.
Corrective action program.
The owner or operator of a hazardous waste surface
impoundment, waste pile, land treatment unit, or landfill shall submit to the
commissioner with Part B of the permit application sufficient information,
supporting data, and analyses to establish a corrective action program that
meets the requirements of part
7045.0484, subpart 14. The
submittal must demonstrate that corrective action is feasible if the
groundwater protection standard is exceeded. To demonstrate compliance with
part
7045.0484, subpart 14, the owner
or operator shall address the following items:
A. a characterization of any contaminated
groundwater, including concentrations of hazardous constituents;
B. the concentration limit for each hazardous
constituent as set forth in part
7045.0484, subparts 6 and
7;
C. detailed plans and an
engineering report describing the corrective action to be taken;
D. a description of how the groundwater
monitoring program will assess the adequacy of the corrective action;
E. an estimate of the time which may be
necessary to complete corrective action; and
F. an estimate of the cost for completing
such corrective action.
The permit may contain a schedule for submittal of the
information required in items C and D if the owner or operator obtains written
authorization from the commissioner before submitting the complete permit
application.