Current through Register Vol. 49, No. 13, September 23, 2024
Subpart 1.
Applicability.
This part applies to the owner or operator of a stationary
source claiming material usage in coating and solvent cleaning operations as a
conditionally insignificant activity. To qualify as a conditionally
insignificant activity under this part, all material usage activities at the
stationary source must be included in the limits under subpart 2. If lead is a
component of any material usage activity at the stationary source, this part
does not apply.
Subp. 2.
Material usage limits.
The owner or operator must limit emissions from all material
usage as provided in items A and B at the stationary source to qualify as a
conditionally insignificant activity under this part.
A. VOCs. The owner or operator must limit VOC
emissions to less than 10,000 pounds, or VOC-containing material usage to less
than 1,000 gallons, in each calendar year . Pounds of VOC emissions must be
calculated according to the method in subpart
4. All VOC emissions from all
material usage activities at the stationary source must be accounted for in the
annual calculation. This limit applies regardless of the hazardous air
pollutant content of the VOC.
B.
Particulate matter. The owner or operator must limit emissions of particulate
matter to less than 8,000 pounds in each calendar year, calculated according to
the method in subpart
5. All particulate matter
emissions from all material usage activities at the stationary source must be
accounted for in the annual calculation. This limit applies regardless of the
hazardous air pollutant content of the particulate matter.
Subp. 3.
Record keeping.
The owner or operator of a stationary source claiming material
usage as a conditionally insignificant activity must:
A. maintain records for each calendar year of
the number of gallons of VOC-containing materials purchased or used and the
maximum VOC content of each material;
B. maintain records for each calendar year of
the number of gallons of solids-containing materials purchased or used and the
maximum solids content of each material;
C. maintain a record of the material safety
data sheet (MSDS), or a signed statement from the supplier stating the maximum
VOC content and the maximum solids content for each material;
D. if the owner or operator ships waste
material from material usage activities off-site for recycling, keep records of
the amount of material shipped off-site for recycling, the VOC content shipped
off-site for recycling, and the calculations done to determine the amount of
VOC to subtract. Acceptable records include: the material safety data sheets,
invoices, shipping papers, and/or hazardous waste manifests;
E. if a material usage activity includes
spray application of material and the owner or operator chooses to apply the
transfer efficiency in calculations, maintain information on the type of spray
application equipment and transfer efficiency; and
F. if requested by the commissioner,
calculate and record for any of the previous five calendar years:
(1) the VOC emissions using the method in
subpart
4;
(2) the particulate matter emissions using
the method in subpart
5;
(3) the calculation used to arrive at the
total for each of subitems (1) and (2); and
(4) a list of the associated emissions units
in which the material was used.
Subp. 4.
Calculating VOC
emissions.
An owner or operator claiming material usage as a conditionally
insignificant activity must calculate VOC emissions using one of the methods in
item A or B. If the owner or operator ships waste material from material usage
activities off-site for recycling, the amount of VOC recycled may be subtracted
from the amount of VOC calculated in item A or B:
A. pounds of VOC emissions per calendar year
equal gallons of VOC-containing material purchased or used in a calendar year
multiplied by the pounds of VOC per gallon; or
B. pounds of VOC emissions per calendar year
equal pounds of VOC-containing material purchased or used in a calendar year
multiplied by weight percent of VOC.
Subp. 5.
Calculating particulate matter
emissions.
A. An owner or operator
claiming material usage as a conditionally insignificant activity must
calculate particulate matter emissions using one of the following methods:
(1) pounds of particulate matter emissions
per calendar year equal gallons of solids-containing material purchased or used
in a calendar year multiplied by the pounds of solids per gallon; or
(2) pounds of particulate matter emissions
per calendar year equal pounds of solids-containing material purchased or used
in a calendar year multiplied by weight percent of solids.
B. For material usage activities that involve
spray application of materials, the owner or operator may apply a transfer
efficiency in the calculation of particulate matter emissions by multiplying
the result determined in item A by (1 - transfer efficiency). The owner or
operator may also apply a control efficiency, alone or in addition to the
transfer efficiency, in calculating emissions of particulate matter by
multiplying the result determined in item A by (1 - control efficiency). The
control efficiency used in this calculation must be determined according to
part
7011.0070 for listed control
equipment and may be used only if the owner or operator is in compliance with
parts
7011.0060 to
7011.0080.
Subp. 6.
Calculating particulate
matter, PM-10, and PM-2.5 emissions.
An owner or operator claiming material usage as a conditionally
insignificant activity must calculate particulate matter, PM-10, and PM-2.5
emissions using one of the methods in item A or B:
A. pounds of particulate matter, PM-10, and
PM-2.5 emissions per calendar year equal gallons of solids-containing material
purchased or used in a calendar year multiplied by the pounds of solids per
gallon; or
B. pounds of particulate
matter, PM-10, and PM-2.5 emissions per calendar year equal pounds of
solids-containing material purchased or used in a calendar year multiplied by
weight percent of solids per gallon.
For material usage activities that involve spray application of
materials, the owner or operator may apply a transfer efficiency in the
calculation of particulate matter, PM-10, and PM-2.5 emissions by multiplying
the result determined by item A or B by (1 - transfer efficiency).
Statutory Authority: MS s
116.07
