.
1.
Visible Emission
Limits. In
lieu of the requirements of 310 CMR
7.06(1)(a) and 310 CMR 7.06(1)(b), a facility subject to
310 CMR
7.00:
Appendix C - Operating Permits
with boilers rated less than 500 million Btu per hour energy input capacity,
may elect to comply with the following:
a.
Except as provided in 310 CMR 7.06(1)(c)1.b.; 310 CMR 7.06(1)(c)1.c. and 310
CMR 7.06(1)(c)1.g., visible emissions shall not exceed 15 percent opacity
during any six-minute block average.
b. During periods of start-up, shutdown, soot
blowing, and other specified operating conditions, visible emissions from any
boiler shall not exceed 27% opacity during any six-minute block average except
that visible emissions may exceed 27% opacity for up to two six-minute block
averages during the calendar quarter.
c. For a boiler equipped with a visible
emission monitor with a numeric data reduction system that can printout
individual block averages or output individual block averages to an electronic
file, the Department will make a determination to approve or deny visible
emissions during periods of startup, shutdown, soot blowing and other specified
operating conditions to exceed 27% opacity for one-tenth of one percent of the
total six-minute block averages during any calendar quarter, or six block
averages per boiler per quarter, whichever is greater, provided visible
emissions do not exceed 60% opacity during any six-minute block average.
i. At no time can visible emissions exceed
27% opacity for more than two six-minute block averages during a one-hour
period and the one-hour block average opacity shall not exceed 27% opacity
during the one-hour block period when a six-minute block averages exceeds 27%
opacity.
ii. The one-hour average
shall be based on a clock hour.
iii. Boilers may be approved to operate in
accordance with the visible emission limitations provided by 310 CMR
7.06(1)(c)1.b. and 310 CMR 7.06(1)(c)1.c. during the same calendar
quarter.
d. Compliance
with visible emission limits shall be based upon a six-minute block average
determined either i. by the procedures set forth in Method 9, (as described in
40 CFR Part 60 , Appendix A-4), or ii. by a visible emission monitor required
under a Plan Approval issued by the Department under
310 CMR
7.02, or iii. at the request of a facility,
by a visible emission monitor required under the Operating Permit and specified
as such in the Approval of the Plan of Good Operating Practices under 310 CMR
7.06(1)(c).
e. Before a facility
may operate in accordance with 310 CMR 7.06(1)(c) the facility must notify the
Department in writing of such intention, develop and submit to the Department a
plan of good operating practices, and receive notification from the Department
that the plan has been approved;
f.
Any facility operating pursuant to 310 CMR 7.06(1)(c) shall comply with a good
operating practices plan as approved; and g. When notified in writing at least
five business days prior to scheduled shakedown activities, testing, and
calibrations for the purpose of improving boiler performance, the Department
may allow exemptions to 310 CMR 7.06(1)(c)1.a., 310 CMR 7.06(1)(c)1.b. and 310
CMR 7.06(1)(c)1.c. Such notification shall include a brief description of the
activity, and its start time and anticipated end time. The Department may allow
a shorter notification period upon request. The Department may deny or limit
the frequency of such activities.
2.
Plan of Good Operating
Practices. The plan of good operating practices shall, at a
minimum:
a. Be developed with recommendations
from third party combustion systems experts:
b. Describe how the application of modern
technology of control, and practices for operating and maintaining the
equipment, will minimize visible emissions;
c. Describe any operating conditions other
than startup, shutdown and soot blowing during which the facility proposes to
take advantage of the exception in 310 CMR 7.06(1)(c);
d. Propose the duration and frequency of
startup, shutdown, soot blowing and any other specified conditions;
e. Document the need for visible emission
limitations greater than 15% opacity during startup, shutdown, soot blowing and
any other specified operating conditions;
f. Propose visible emission limitations that
the facility will comply with during startup, shutdown, soot blowing and other
specified operating conditions;
g.
Describe all necessary corrective action procedures and include schedules for
implementing such procedures; and h. Propose record keeping and monitoring
procedures sufficient to enable the Department to determine that visible
emissions comply with the plan.
3.
Department Action
.
a. Upon completion of review, the Department
shall either approve or disapprove the plan of good operating
practices.
b. The terms and
conditions of an approved plan shall be incorporated into the facility's
Operating Permit.
c. A Department
approval shall specify the visible emission limitations for each operating
condition, (i.e. startup, shutdown, soot blowing and other
specified operating conditions approved by the Department); and specify
corresponding monitoring, record keeping and reporting requirements, and other
conditions necessary to ensure compliance with the visible emission limitations
contained in the approval.
d.
Modifications to those portions of an approved plan that are not incorporated
into the facility's Operating Permit shall be maintained on-site and made
available to Department representatives upon request. Modifications to an
approved plan shall be submitted to the Department for review with the
facility's Operating Permit renewal application. The Department may require
modification of an approved plan.