Current through Register Vol. 49, No. 27, December 30, 2024
Subpart 1.
Eligibility.
To be eligible to operate without a permit under this chapter,
the owner or operator of a concrete manufacturing stationary source must comply
with this part and parts
7008.2000 and
7011.0850 to
7011.0859.
Subp. 2.
Production limitation.
Production must be limited to less than 300,000 tons of
unhardened concrete in any calendar year for owners or operators that elect not
to receive emissions reduction credit for road dust control. Production must be
limited to less than 360,000 tons of unhardened concrete in any calendar year
for owners or operators that elect to receive credit for road dust control on
unpaved roads by:
A. recording the
date and time of the road dust control action and the initials of the person
making the record;
B. recording the
amount of water or dust suppressant applied; and
C. if a commercially available dust
suppressant is used, applying it in accordance with the manufacturer's
guidelines.
Subp. 3.
Authorized emissions units and activities.
The concrete manufacturing plant may contain only the emissions
units and activities described in items A to D:
A. Storage piles, aggregate transfer,
cementitious material transfer, weigh hopper loading, mixers, mixer loading,
truck loading, block forming equipment, mobile vehicle sources such as trucks,
front-end loaders, and forklifts, and aggregate heaters used solely to improve
the flowability of aggregate used in manufacturing concrete burning only
natural gas, propane, or No. 1 or No. 2 fuel oil or a combination of these
fuels.
B. Individual indirect
heating equipment, as defined in part
7011.0500, subpart 9, with a rated
heat input capacity less than 10,000,000 Btu per hour burning only natural gas,
propane, or No. 1 or No. 2 fuel oil or a combination of these fuels.
C. Nonmobile internal combustion engines,
such as emergency generators, burning less than 37,500 gallons per calendar
year of gasoline, No. 1 fuel oil, or No. 2 fuel oil combined.
D. Miscellaneous units and activities as
described in subitem (1) or (2):
(1) For the
entire stationary source, total VOC-containing material usage or purchases of
less than 500 gallons in any calendar year or conditionally insignificant VOC
usage. If the owner or operator ships VOC off site for recycling, the amount
recycled may be subtracted from the amount of VOC purchased or used.
"Recycling" means the reclamation or reuse, as defined in part
7045.0020, of a VOC. If the owner
or operator ships VOC off site for recycling, the owner or operator shall keep
records of the amount of material shipped off site for recycling and the
calculations done to determine the amount to subtract. Acceptable records
include: material safety data sheets, invoices, shipping papers, and/or
hazardous waste manifests.
(2) Any
of the insignificant activities listed in part
7007.1300, subpart
2 or
3, or conditionally
insignificant activities.
Subp. 4.
PM-10 nonattainment
areas.
The concrete manufacturing plant may not be located in areas
designated as nonattainment for PM-10.
Subp. 5.
Crushing operations.
Crushing operations may be located at the concrete
manufacturing plant site and are not considered part of the concrete
manufacturing plant unless more than 50 percent of the material processed by
the crusher or crushers is used by the concrete manufacturing plant in the
manufacture of concrete. The owner or operator of the crusher and associated
operations shall obtain an air emissions permit for the crusher or crushers and
associated operations if they are described under part
7007.0200 or
7007.0250.
Subp. 6.
Record keeping.
The owner or operator of a concrete manufacturing stationary
source must maintain records that contain:
A. the calendar-year production of unhardened
concrete in tons to demonstrate compliance with subpart
2;
B. documentation of compliance with the
requirements for conditionally insignificant activities;
C. the types of fuel combusted in nonmobile
emissions units in each calendar year to demonstrate compliance with subpart
3, items A to C, and the
amounts of fuel combusted in nonmobile internal combustion engines to
demonstrate compliance with subpart
3, item C; and
D. documentation of compliance with subpart
2, items A and B, if the
owner or operator elects to receive credit for reducing emissions by
controlling road dust.
Statutory Authority: MS s
116.07
