AIR POLLUTION CONTROL CONSTRUCTION PERMIT

EI FACILITY NO: 737227040 CONSTRUCTION PERMIT NO.: 10

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TYPE: Construction Permit for Process(es) : B01, B02, P121, F122, F123, F125, F 126, P131, P132

, F133 and P141

In compliance with the pro visions of Chapter 285, Wis. Stats., and Chapters NR 400 to NR 499, Wis. Adm. Code,

Name of Source: WE Energies

– Biomass Fueled Cogeneration Facility

Street Address: 210 Grand Avenue, Rothschild, WI

Responsible Official, & Title: Anthony Bernier, Direct or

– Steam Services and Chilled Water
Business

is authorized to construct described in the plans and specifications dated March 24, 2010, May 27, 2010, August 4, 2010, October 1, 2010, October 26, 2010, October 28, 2010, November 16, 2010 and October
4, 2 012 and operate boilers, material handling processes and other equipment / operations in conformity

with the conditions herein . The authority to construct, modify, replace and/or reconstruct any process

covered in this Construc tion Permit expires on March 28,2014. . This approved period to construct, modify, replace and/or reconstruct may be extended for up to 18 months upon request for cause, prior to expiration, unless otherwise specified by this construction permit. The conditions of this construction

pe rmit are permanent and may only be revised through a revision of the construction permit or through the issuance of a new construction permit. [s. 285.60(1), Wis. Stats.]

Conditions of the construction permit and the operation permit marked with an asteris k (*) have been created outside of the Wisconsin’s federally approved State Implementation Plan (SIP) and are not federally enforceable.

This authorization requires compliance by the permit holder with the emission limitations, monitoring requirements and other terms and conditions set forth in Parts I and II hereof.

Dated at Madison , Wisconsin April 4, 2013

STATE OF WISCONSIN
DEPARTMENT OF NATURAL RESOURCES For the Secretary

By s/s Bart Sponseller 4/4/13 Bart Sponseller, Director Bureau of Air Managem entFID No. 737227040
, Permit No. 10

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Part I

A. Boiler B02

– 350 MMBTU/hour natural gas. This boiler is subject to NSPS (Part 60, Subparts D and Db).

1. Particulate Matter including PM10 and PM2.5

a. Limitations: Best Available Control Technology (BACT).

(1) 0.0076 pounds/MMBTU at all times (s. NR 405.08, Wis. Adm. Code and NSPS and 10

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(2) The total heat input to Boiler B02 may not exceed 180,845 mmBtu per month
, averaged over any consecutive
12

- month period

.

(s. NR 405.08, Wis. Adm. Code , and 10

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b. Compliance De monstration: c. Test Methods, Recordkeeping, and Monitoring:
( 1 ) The boiler may only combust pipeline quality natural gas. (s. NR 405.08, Wis. Adm. Code) (1) Reference Test Method for Particulate Matter
Emissions: Whenever compliance emission testing is required, US EPA Method 5, including backhalf (Method 202) shall be used to demonstrate compliance or an alternate method approved in writing by the Department, shall be used. [s. NR 439.06(1), Wis. Adm. Code]

(2) Whenever compliance emission testing is required for PM2.5, US EPA Other Test Method 2 01A for filterable and
US EPA Method 202 for condensable particulate shall be used to demonstrate compliance or an alternate method approved in writing by the Department, shall be used. [s. NR 439.06(1), Wis. Adm. Code]

(3) Maintain a monthly record of the hours of operation of
boiler B02

, a record of the to t al MMBTU of natural gas

com busted in that month and the monthly average quantity of natural gas combusted in the most recent 12

- month period. These records to be available within 10 days of the end of any month (s. NR 439.04, Wis. Adm. Code)FID No. 737227040
, Permit No. 10

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A. Boiler B02

– 350 MMBTU/hour natural gas. This boiler is subject to NSPS (Part 60, Subparts D and Db).

2. Sulfur dioxide

a. Limitations:

(1) 0.000 6 pounds/MMBTU heat input when combusting natural gas at all times (s. 285.65(7), Stats. , and 10

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(2) Use of natural gas as specified in cond. A.2.b.(1) of this permit

(3) 3 .25 tons in any month , averaged over any consecutive 12

- month period, fro m boilers B01 and B02 combined

.

(4) 0.2 pounds in any hour.

(5) The total heat input to Boiler B02 may not exceed 180,845 mmBtu per month, averaged over any consecutive
12

- month period.

(s. 285.65(7), Stats. and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) The boiler may only combust pipeline quality natural gas (s. 285.65(7), WI Stats.). ( 1) Reference Test Method for Sulfur Dioxide Emissions: Whenever compliance emission testing is required, US

EPA Method 6, 6A or 6C shall be used to demonstrate compliance or an alternate method approved in writing by the Department, shall be used. [s. NR 439.06(2), Wis. Adm. Code]

(2) Within 10 days of the end of any month, the permittee
shall calculate the sulfu r dioxide emissions for that month
for boiler B02 and the total emissions of sulfur dioxide for boilers B01 and B02 (combined) for the previous 12 months of operation (s. NR 439.04, Wis. Adm. Code).

(3) The permittee shall maintain a record of the calcula tions required under cond. I.A.2.c.(2) of this permit (s. NR 439.04, Wis. Adm. Code).FID No. 737227040
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A. Boiler B02

– 350 MMBTU/hour natural gas. This boiler is subject to NSPS (Part 60, Subparts D and Db).

3. Nitrogen oxides

a. Limitations 1 : BACT. 2

(1) 10 ppmvd (parts per million by volume) corrected to 5 % oxygen, averaged over any 30 consecutive day period;
and

(2) 7 pounds in any hour.

(3) Installation and use of ultra

- low NOx burner technology for combustion of natural gas.

(4) The total heat input t o Boiler B02 may not exceed 180,845 mmBtu per month, averaged over any consecutive
12

- month period.

(5) 0.20 pounds/MMBTU heat input, including periods of startup, shutdown or malfunction
, averaged over any 30 consecutive day period (40 CFR 60.44b and s. 285.65(13) Wi Stats.)

(s. NR 405.08, Wis. Adm. Code and NSPS and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) The permittee shall install and properly operate an ultra low NOx burner system for combusting natural gas in boiler B02 (s. NR 405.08, Wis. Adm. Code)

(2) Prior to startup of the boiler, the permittee shall install, maintain, calibrate and operate a continuous emission monitor (CEM) for measuring nitrogen oxides emissions
from that boiler which me ets the requirements of Performance specification 2 in 40CFR part 60, Appendix B. (ss. NR 405.08 and NR 439.09(2), Wis. Adm. Code).

(3) The permittee shall calibrate, maintain, and operate the continuous emission monitoring system (CEMS) required
to be in stalled under cond. I.A.3.b.(2) of this permit. The CEM for the boiler shall be operational whenever nitrogen oxides may be being emitted from that boiler [ ss. NR 407.09(4)(a)1., and NR 439.09(5), Wis. Adm. Code ]

(4) Within 90 days of startup of the boil er, the CEM for
that boiler shall be certified in accordance with Performance specification 2 in 40CFR part 60, Appendix B (ss. NR 405.08 and NR 439.09, Wis. Adm. Code)

(5) Within 120 days of startup of the boiler, the permittee shall submit a QA/QC plan for the NOx CEM for that boiler to the Department for review (ss. NR 405.08 and NR 439.04(1), Wis. Adm. Code)

(6) The permittee shall follow the quality control and (1) Reference Test Method for Nitrogen Oxide Emissions: Whenever compliance emission testing is required, US EPA Method 7, 7E or an alternate method approved in writing by the Department shall be used to demonstrate compliance. [s. NR 439.06(6), Wis. Adm. Code]

(2) The permittee shall maintain all of the following
records: (a) The calculated emission rates required under cond. A.3.b.(7) of this permit. The 30

- day period c alculations shall be available within 5 days of the end of any 30

- day period;
(b) A copy of the QA/QC plan for the CEM;
(c) Any records required under the QA/QC plan;
(d) a record of the 15 minute CEM readings, corrected to
5 % oxygen, for each hour of boil er operation and the hourly emission rate for each hour of operation;
(e) a daily record of the quantity of natural gas used in cubic feet. (s. NR 439.04(1), Wis. Adm. Code)

(3) The owner or operator of a continuous emissions monitoring system shall submi t quarterly excess emission reports to the department within 30 days following the end of each calendar quarter in accordance with subd. (a). The owner or operator shall submit either a full excess emission report under par. (a) or a summary excess emissio n report under par. (b), as specified in writing by the department. (a) The full excess emission reports required under this

1 The NSPS limit for natural gas is 0.2 lb/MMBTU (approx. 170 ppmvd for gas) on a 30

- day average basis.

2 The 30

- day average emission rate may not include any hours or days in which that fuel type was not combusted.FID No. 737227040
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A. Boiler B02

– 350 MMBTU/hour natural gas. This boiler is subject to NSPS (Part 60, Subparts D and Db). quality assurance plan required under cond. A.3.b.(5) of this permit at all times. This includes following the Plan as submitted to the Department and the Plan prior to as approved by the Department for the continuous emission monitoring system (CEMS) required for NOx emissions [ ss. NR 407.09(4)(a)1., and NR 439.09(8), Wis. Adm. Code]

(7) T he permittee shall demonstrate compliance with the
NOx emission limitations as follows:

a) Compliance with the hourly emission rate shall be determined by summing the 15 minute CEM readings and generating an hourly average emission rate.

(b) Compliance with any 30

- day average emission limitation shall be determined using the following methodology: i. Averaging the valid 15 minute NOx measurements in any hour to determine an hourly average NOx emission rate; ii. Calculating the average 30

- day emission r ate by averaging the hourly emission rates for each hour of operation in the past 30 days ; and
iii. A new 30

- day rolling average emission rate is calculated each operating day as the average of all of the hourly NOx emission data for the preceding 30 oper ating days

.

(s. NR 405.08, Wis. Adm. Code)

(8) The boiler may only combust pipeline quality natural gas. (s. NR 405.08, Wis. Adm. Code)

(9) Initial compliance emission tests shall be conducted within 180 days after the start of operation of the process to show compliance with the emission limitation. 3 [s. NR 439.07, Wis. Adm. Code] subsection shall contain the following information: i. The date and starting and ending times or duration of each period of excess emissions and the magnitude of the
emissions. ii. The periods of excess emissions that occur during startups, shutdowns, process malfunction, fuel problems, other known causes or for unknown causes. The report shall identify the cause of any malfunction an d the
measures taken to reduce excess emissions. iii. The date and starting and ending time of any period during which the monitoring system was inoperative for any reason or causes, including monitor malfunction or calibration, except for zero and span ch ecks. The report shall identify the repairs or adjustments made to the system. iv. The date and starting and ending time of any period during which the process being monitored was inoperative. v. When no period of excess emissions occurred during the
quart er and the monitoring system had no period of downtime, an excess emissions report shall be filed stating
such information. (b) The summary excess emission report shall be submitted on a form provided by the department or in a format approved by the depart ment, in writing (c) An excess emission of nitrogen oxides is defined as
follows: i. any hour in which the nitrogen oxides emission rate exceeds the hourly emission rate in cond. I.A.3.a.( 2 ) of this permit; or ii. Any 30

- day period hour in which the nitrog en oxides
emission rate exceeds the 30

- day average emission rate in cond. I.A.3.a.(1) &(5) of this permit.
(ss. NR 405.08 and NR 439.09(10), Wis. Adm. Code; 40
CFR 60.46b and s. 285.65(13), Stats.)

(4) Maintain a monthly record of the hours of operatio n of boiler B02 and a record of the total hours of operation in
the most recent 12

- month period. These records to be available within 10 days of the end of any month (s. NR 439.04, Wis. Adm. Code)

3 If the compliance emission tests cannot be conducted within 180 days after the start of initial operation, the permit holder may request and the Department may approve, in writing, an extension of time to c onduct the test(s). See I.ZZZ.4.FID No. 737227040
, Permit No. 10

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A. Boiler B02

– 350 MMBTU/hour natural gas. This boiler is subject to NSPS (Part 60, Subparts D and Db).

4. Carbon Monoxide (CO)

a. Limitations: BACT.

(1) 0.060 pounds/MMBTU heat input averaged over any 30

- day period (including all periods of operation); and

(2) 70 pounds in any hour.

(3) The total heat input to Boiler B02 may not exceed 180,845 mmBtu per month, averaged over any consecutive
12

- month period.

(s. NR 405.08, Wis. Adm. Code)

b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) Prior to startup of a b oiler, the permittee shall install a continuous emission monitor (CEM) for measuring carbon
monoxide emissions from that boiler which meets the requirements of Performance Specification 4 in 40CFR Part 60, Appendix B (s. NR 405.08 and NR 439.09(4), Wis.
Ad m. Code)

(2) The permittee shall calibrate, maintain and operate the continuous emission monitoring system (CEMS) required to be installed under cond. I.A.4.b.( 1 ) of this permit. The
CEM for the boiler shall be operational whenever carbon monoxide may b e being emitted from that boiler [ ss. NR 407.09(4)(a)1., and NR 439.09(5), Wis. Adm. Code ]

(3) Within 90 days of startup of the boiler, the CEM for
that boiler shall be certified in accordance with Performance Specification 4 in 40CFR Part 60, Appendix

B (s. NR 405.08 and NR 439.09(4), Wis. Adm. Code)

(4) Within 120 days of startup of the boiler, the permittee shall submit a QA/QC plan for the CO CEM for that boiler to the Department for review.

(5) The permittee shall follow the quality control and qual ity assurance plan required under cond. A.3.b.( 4 ) of this permit at all times. This includes following the Plan as submitted to the Department and the Plan prior to as approved by the Department for the continuous emission monitoring system (CEMS) require d for CO emissions [ ss. NR 407.09(4)(a)1., and NR 439.09(8), Wis. Adm. Code]

(6) The permittee shall demonstrate compliance with the
CO emission limit as follows: a) Compliance with the hourly emission rate shall be determined by summing the 15 minute CE M readings and generating an hourly average emission rate. (b) Compliance with any 30

- day average emission limitation shall be determined using the following (1) Reference Test Method for carbon Monoxide
Emissions: Whenever compliance emission te sting is required, US EPA Method 10, 10A or 10B or an alternate method approved in writing by the Department shall be used to demonstrate compliance. (s. NR 439.06(4), Wis. Adm. Code) (2) The permittee shall maintain the following records:

(a) The calcu lated emission rates required under cond.

I. A. 4 .b.(6) of this permit. The 30

- day period calculations shall be available within 5 days of the end of any 30

- day period;
(b) the total heat input to the boiler;
(c) A copy of the QA/QC plan for the CEM;
(d) An y records required under the QA/QC plan;
(e) a record of the 15 minute CEM readings, corrected to 3% oxygen, for each hour of boiler operation and the hourly emission rate for each hour of operation

. (3) The owner or operator of a continuous emissions

mon itoring system shall submit quarterly excess emission reports to the department within 30 days following the end of each calendar quarter in accordance with subd. (a). The owner or operator shall submit either a full excess emission report under subd. (a) or a summary excess emission report under subd. (b), as specified in writing by the department. (a) The full excess emission reports required under this subsection shall contain the following information: i. The date and starting and ending times or durati on of each period of excess emissions and the magnitude of the
emissions. ii. The periods of excess emissions that occur during startups, shutdowns, process malfunction, fuel problems, other known causes or for unknown causes. The report shall identify the cause of any malfunction and the
measures taken to reduce excess emissions. iii. The date and starting and ending time of any period during which the monitoring system was inoperative forFID No. 737227040
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A. Boiler B02

– 350 MMBTU/hour natural gas. This boiler is subject to NSPS (Part 60, Subparts D and Db). methodology: i. Averaging the valid 15 minute CO measurements in any hour to determine an hourly average CO emission rate; ii. Calculating the average 30

- day emission rate by averaging the hourly emission rates for each hour of operation in the past 30 days; and
iii. A new 30

- day rolling average emission rate is calculated each operating day as the average of all of the hourly CO emission data for the preceding 30 operating days

. (c) No period when the boiler is not operating may be used in calculating the 30 day average emission rate. (s. NR 405.08, Wis. Adm. Code)

(7) Initial compliance emission tests shall be conducted within 180 days after the start of operation of the process to show compliance with the emission limitation. 4 [s. NR 439.07, Wis. Adm. Code] any reason or causes, including monitor malfunction or calibration, except for zero and span checks. The report shall identify the repairs or adjustments made to the system. iv. The date and starting and ending time of any period during which the process being monitored was inoperative. v. When no period of excess emissio ns occurred during the quarter and the monitoring system had no period of downtime, an excess emissions report shall be filed stating
such information. (b) The summary excess emission report shall be submitted on a form provided by the department or in a f ormat approved by the department, in writing (c) An excess emission of carbon monoxide is defined as
follows: i. any hour in which the carbon monoxide emission rate for
a boiler exceeds the 1

- hour emission rate in cond. I.A.4.a.( 2 ) of this permit; or
ii. a ny 30

- day period hour in which the carbon monoxide
emission rate for a boiler exceeds the 30

- day average emission rate in cond. I.A.4.a.(1) of this permit. (ss. NR 405.08 and NR 439.09(10), Wis. Adm. Code)

(4) Maintain a monthly record of the hours of operation of boiler B02 and a record of the total hours of operation in
the most recent 12

- month period. These records to be available within 10 days of the end of any month (s. NR 439.04, Wis. Adm. Code)

4 If the compliance emission tests cannot be conducted within 180 days after the start of initial operation, the permit holder may request and the Department may approve, in writing, an extension of time to conduct the tes t(s).FID No. 737227040
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A. Boiler B02

– 350 MMBTU/hour natura l gas. This boiler is subject to NSPS (Part 60, Subparts D and Db).

5. Volatile organic compounds (VOC)

a. Limitations: BACT.

(1) Comply with the carbon monoxide emissions limitations in conds. I.A.4.a.(1) and (2) of this permit.

(s. NR 405.08, Wis. Adm. Code and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) Comply with the requirements of conds. I.A.4.b.(1)

- (7) of this permit (s. NR 405.08, Wis. Adm. Code) (1) Reference Test Method for VOC Emissions: Whenever compliance emission testing is required, US EPA Method 25A or an alternate method approved in writing by the Department shall be used to demonstrate compliance. [s. NR 439.06(3)(a), Wis. Adm. Code]
(2) Comply with the recordkeeping requirements o f conds. I.A.4.c.(2)

- (4) of this permit (s. NR 439.04, Wis. Adm. Code)

A. Boiler B02

– 350 MMBTU/hour natural gas. This boiler is subject to NSPS (Part 60, Subparts D and Db).

6. Fluorides

a. Limitations: BACT.

(1) Combust only Natural gas i n boiler B02.

(2) The total heat input to Boiler B02 may not exceed 180,845 mmBtu per month, averaged over any consecutive
12

- month period

(s. NR 405.08, Wis. Adm. Code and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Mon itoring:

(1) The boiler may only combust pipeline quality natural gas (s. NR 405.08, Wis. Adm. Code) (1) Reference Test Method for Fluoride Emissions: Whenever compliance emission testing is required, US EPA Method 13 or 13A or an alternate method approv ed in writing by the Department shall be used to demonstrate compliance. [s. NR 439.06, Wis. Adm. Code]

(2) Maintain a monthly record of the hours of operation of boiler B02 and a record of the total hours of operation in
the most recent 12

- month period. These records to be available within 10 days of the end of any month (s. NR 439.04, Wis. Adm. Code)FID No. 737227040
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A. Boiler B02

– 350 MMBTU/hour natural gas. This boiler is subject to NSPS (Part 60, Subparts D and Db).

7. Visible Emissions (Opacity)

a. Li mitations: BACT.

(1) 10% opacity; and

(2) Combust only natural gas in boiler B02.

(ss. NR 405.08 and NR 431.05, Wis. Adm. Code and NSPS and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:

( 1) The boiler may o nly combust pipeline quality natural

gas

. (s. NR 405.08, Wis. Adm. Code)

(2) Initial compliance emission tests shall be conducted within 180 days after the start of operation of the process to show compliance with the emission limitation. 5 [s. NR 439.07, Wis. Adm. Code]

(3) The permittee shall perform the compliance emission tests required under condition I.A.7.b.(2) every 60 months within 60 days from the date of the anniversary date of the original stack test. [s. NR 439.075(3)(b) Wis. Adm. Code] (1) R eference Test Method for Opacity: Whenever compliance emission testing is required, US EPA Method 9 or an alternate method approved in writing by the Department, shall be used to demonstrate compliance. [s. NR 439.06(9), Wis. Adm. Code]

5 If the compliance emission tests cannot be conducted within 180 days after the start of initial operation, the permit holder may request and the Department may approve, in writing, an extension of time to conduct the test(s). See I.ZZZ.4.FID No. 737227040
, Permit No. 10

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A. Boile r B02

– 350 MMBTU/hour natural gas. This boiler is subject to NSPS (Part 60, Subparts D and Db).

8. Greenhouse Gases

a. Limitations: BACT.

(1) Greenhouse gas emissions may not exceed 1 85 lb CO 2 per 1,000 pounds of steam produced,
or 5 0 8 lb CO 2 per MW h of steam produced per month, averaged over any consecutive 12

- month period. (s. NR 405.08,
Wis. Adm. Code and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) Prior to startup of a boiler, the permittee shall install, maintain, calibrate and operate a continuous emission monitor (CEM) for measuring carbon
dioxide emissions from that boiler which meets the requirements of Performance specification 2 in 40CFR part 60, Appendix B. (ss. NR 405.08 and NR 439.09(2), Wis. Adm. Code).

( 2 ) The permittee shall calibrate, maintain, and operate the continuous emission monitoring system (CEMS) required to be installed under cond. I.A.8.b.( 1 ) of this permit. The CEM for a boiler shall be operational whenever carbon dioxide may be being emitted from that boiler [ ss. NR 407.09(4)(a)1., and NR 439.09(5), Wis. Adm.
Code ]

( 3 ) Within 90 days of startup of a boiler, the CEM
for that boiler shall be certified in accordance with Performance specification 2 in 40CFR part 60, Appendi x B (ss. NR 405.08 and NR 439.09, Wis. Adm. Code)

( 4 ) Within 120 days of startup of a boiler, the permittee shall submit a QA/QC plan for the CO2 CEM for that boiler to the Department for review (ss. NR 405.08 and NR 439.04(1), Wis. Adm. Code)

( 5 ) The p ermittee shall follow a quality control and quality assurance plan, prior to Department approval and as approved by the Department, for the continuous emission monitoring system (CEMS) required by condition s I.A.8.b.(1)&(2). [ ss. NR 407.09(4)(a)1., and N R 439.09(8), Wis. Adm. Code]

( 6 ) Prior to startup of a boiler, the permittee shall install, maintain, calibrate and operate meters for steam flow, temperature and pressure; and measure

gross process steam output in pounds per hour and

MW

- hours on a contin uous basis. ( 7 ) The permittee shall demonstrate compliance with
the CO 2 e emission limitations as follows: (1) Reference Test Method for Carbon Dioxide Emissions: Whenever compliance emis sion testing is required, US EPA Method 3A or an alternate method approved in writing by the Department shall be used to demonstrate compliance. [s. NR 439.06(6), Wis. Adm. Code]

(2) The permittee shall maintain all of the following records: (a) The calc ulated emission rates required under cond. A.1.3.b.(7) of this permit. The 30

- day period calculations shall be available within 5 days of the end of any 30

- day period;
(b) A copy of the QA/QC plan for the CEM;
(c) Any records required under the QA/QC plan ; (d) a record of the 15 minute CEM readings, for each hour of boiler operation and the hourly emission rate for each hour of operation;
(e) a daily record of the quantity of natural gas in cubic feet

. (s. NR 439.04(1), Wis. Adm. Code)

(3) The owner or operator of a continuous emissions monitoring system shall submit quarterly excess emission reports to the department within 30 days following the end of each calendar quarter in accordance with subd. (a). The owner or operator shall
submit either a full e xcess emission report under par. (a) or a summary excess emission report under par. (b), as specified in writing by the department. (a) The full excess emission reports required under this subsection shall contain the following information:
i. The date and starting and ending times or duration of each period of excess emissions and the magnitude of the emissions. ii. The periods of excess emissions that occur during startups, shutdowns, process malfunction, fuel problems, other known
causes or for unknown c auses. The report shall identify the cause of any malfunction and the measures taken to reduce excess
emissions. iii. The date and starting and ending time of any period during which the monitoring system was inoperative for any reason or causes, including monitor malfunction or calibration, except for zero and span checks. The report shall identify the repairs or adjustments made to the system. iv. The date and starting and ending time of any period during which the process being monitored was inoperative. v. When no period of excess emissions occurred during theFID No. 737227040
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A. Boile r B02

– 350 MMBTU/hour natural gas. This boiler is subject to NSPS (Part 60, Subparts D and Db).

(a) Compliance with any 12

- month average emission limitation shall be determined using the following methodology: i. Averaging the valid 15 minute CO2 measurements in any hour to determine an hourly average CO2 emission rate; ii. Calculating the average 12

- month emission rate by averaging the hourly emission rates for each hour of operation in the past 12 months; and
iii. A new 12

- month average emi ssion rate is calculated each month as the average of all of the hourly CO2 emission data for the preceding 12 month period

. (s. NR 405.08, Wis. Adm. Code)

( 8 ) The boiler may only combust pipeline quality natural gas. (s. NR 405.08, Wis. Adm. Code)

( 9 ) Initial compliance emission tests shall be conducted within 180 days after the ”initial operation” of the process to show compliance with
the emission limitation. 6 [s. NR 439.07, Wis. Adm. Code]

(1 0 ) The permittee shall perform the compliance
emission te sts required under condition I.A.3.b.( 9 ) every 60 months within 60 days from the date of the anniversary date of the original stack test. [s. NR 439.075(1)(b) Wis. Adm. Code] quarter and the monitoring system had no period of downtime, an excess emissions report shall be filed stating such information. (b) The summary excess emission report shall be submitted on a
form provided by the department or in a format approved by the department, in writing (c) An excess emission of carbon dioxide is defined as follows: i. any 12

- month period in which the carbon dioxide emission
rate exceeds the 12

- month average emission rate in cond. I.A.8.a.(1) of this permit. (ss. NR 405.08 and NR 439.09(10), Wis. Adm. Code)

(4) Maintain a monthly record of the hours of operation of boiler B02 and a record of the total hours of operation in the most
recent 12

- month period. These records t o be available within 10 days of the end of any month (s. NR 439.04, Wis. Adm. Code)

6 If the compliance emission tests cannot be conducted within 180 days after the start of initial operation, the permit holder may request and the Department may approve, in writing, an extension of time to conduct the test(s). See I.ZZZ.4.FID No. 737227040
, Permit No. 10

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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db).

1. Parti culate Matter including PM10 and PM2.5 (PM)

a

. Limitations: Best Available Control Technology (BACT) and Maximum Achievable Control Technology (MACT)

BACT: (1) 0.024 pounds/MMBTU including backhalf (condensible) particulate matter for biomass alone or co

- fired with natural gas, averaged over any 24

- hour period (s. NR 405.08, Wis. Adm. Code and NSPS and 10

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(2) 0.0076 pounds/MMBTU including backhalf (condensible) particulate matter for exclusive natural gas combustion (s. NR 405.08, Wis. Adm. C ode and 10

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MACT: (3) 0.008 pounds/MMBTU filterable particulate matter only, averaged over any 24

- hour period (s. 285.65(13),
Stats. and 10

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MACT: (4) At least 10% of the total heat input, on an annual average heat input basis, to Boile r B01 shall come from the combustion of biomass as defined in cond. ZZZ 1.a.(1) of this permit (s. 285.65(13), Stats. and 10

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BACT and MACT: (5) Fuel limitations as specified in cond. B.1.b.(1) of this permit (s. NR 405.08, Wis. Adm. Code and
285. 65(13), Stats. and 10

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(6) Heat input to the boiler from natural gas shall be no greater than 250 mmBtu in any hour (s. NR 405.08, Wis. Adm.
Code and 10

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(7) 19.2 pounds in any hour (BACT) (s. NR 405.08, Wis. Adm. Code and 10

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(8) 0.10 pounds/MMBTU heat input (s. NR 415.06(2)(c), Wis. Adm. Code)

(9) 0.085 pounds/MMBTU heat input

, except during periods of startup , shutdown or malfunction (40 CFR 60.43b and s. 285.65(13) Wi Stats.)

b. Compliance Demonstration: c. Test Methods, Recor dkeeping, and Monitoring:
(1) The boiler may only combust pipeline quality natural gas and biomass as defined in cond. ZZZ.1.a.(2) of this permit (s. NR 405.08, Wis. Adm. Code)

(2) At all times that particulate matter may be emitted from this boiler, the boiler exhaust shall pass through a baghouse prior to emission to the atmosphere (s. NR 405.08, Wis. Adm. Code and s. 285.65(13), Stats.)

(3) Prior to startup of a boiler, the permittee shall install a continuous emission monitor (CEM) for measuring
part iculate matter emissions which meet the requirements of Performance Specification 11 in 40CFR Part 60, Appendix B (s. NR 405.08, Wis. Adm. Code and s. 285.65(13), Stats.)

(4) The permittee shall calibrate, maintain, and operate the
continuous emission mon itoring system (CEM) required to be installed under cond. I.B.1.b.(3) of this permit. The CEM for a boiler shall be operational whenever particulate (1) Reference Test Method for Particulate Matter
Emissions: Whenever compliance emission testing is required for PM10, US EPA Method 5, including backhalf (Method 202) shall be used to demonstrate compliance or an alternate method approved in writing by the Department, shall be used. [s. NR 439.06(1), Wis. Adm. Code]

(2) Whenever compliance emission testing is required for PM2.5, US EPA Method 201A for fi lterable and US EPA
Method 202 for condensable particulate shall be used to demonstrate compliance or an alternate method approved in writing by the Department, shall be used. [s. NR 439.06(1), Wis. Adm. Code]

(3) The permittee shall keep a record of a ny fuel received for use in boiler B01 which is not natural gas or biomass [s. NR 439.04(1)(d), Wis. Adm. Code.]

(4) The permittee shall maintain daily records, summarizedFID No. 737227040
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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db). matter may be emitted from boiler B01 [ss. NR 407.09(4)(a)1., and NR 439.09(5), Wis. Adm. Code]

(5) Withi n 90 days of startup of a boiler, the CEM for that
boiler shall be certified and correlated in accordance with Performance Specification 11 in 40CFR Part 60, Appendix B (s. NR 405.08, Wis. Adm. Code and s. 285.65(13), Stats.)

(6) Within 120 days of start up of a boiler, the permittee shall submit a QA/QC plan for the PM CEM for that boiler to the Department for review.

(7) The permittee shall follow a quality control and quality assurance plan, prior to Department approval and as approved by the Departme nt, for the continuous emission monitoring system (CEM) required by conditions I.B.1.b.(3)&(4) [ ss. NR 407.09(4)(a)1., and NR 439.09(8), Wis. Adm. Code]

(8) All fuel sampling required under this permit shall be done in conformance with permit cond. I.ZZ Z.4.a.(4) (s. NR 405.08, Wis. Adm. Code)

(9) Initial compliance emission tests shall be conducted within 180 days after the initial operation of the boiler to show compliance with the emission limitations in conds.1.a.(1)&(7). Additionally, the first compliance emission tests, only, shall also quantify the emission rate of PM10 and PM2.5 [s. NR 439.07, Wis. Adm. Code]

(10) The permittee shall perform the compliance emission tests required under condition I.B.1.a.(9) every 24 months within 60 days from the date of the last stack test. [s. NR 439.075(3)(b) Wis. Adm. Code]

(11) The permittee shall demonstrate compliance with the
PM emission limits as follows: (a) For the 24

- hour emission limitation in cond. 1.a.(3). of
this section: i. By summing the 15 minute data points to calculate an hourly average emission rate (s. NR 405.08, Wis. Adm. Code) ii. By averaging the hourly average emission rates to
determine a 24

- hour average emission rate
iii. No hour in which the boiler is non

- operational may be
used to compliance with hourly or 24

- hour average PM
emission limitations (b) For the emission limitations in cond. 1.a.(1 ), (7) & (8) : i. through the biennial stack testing required in cond. b.(10) of this section; and monthly of all of the following and make such records available within 5 days of t he end of any month:
(a) the total heat input to boiler B01 from all fuels;
(b) the hourly heat input rate for each fuel burned in that hour; and
(f) a record of the 15 minute CEM readings for each hour of boiler operation and the hourly emission rate for each hour of operation;
(s. 285.65(13), Wis. Stats.; s. NR 439.04(1), Wis. Adm. Code and NSPS; s. NR 440.205(10)(d), Wis. Adm. Code)
(4) The permittee shall maintain the following records:
(a) A copy of the QA/QC plan for the CEM;
(b) Any records required under the QA/QC plan; (c) Design plans or specifications that indicate that the boiler does not have the capacity of combusting more than 250 MMBTU/hour of natural gas. [s. NR 439.04(1), Wis. Adm. Code]

(5) The owner or operator of a continuous emission s monitoring system shall submit quarterly excess emission reports to the department within 30 days following the end of each calendar quarter in accordance with subd. (a). The owner or operator shall submit either a full excess emission report under subd. (a) or a summary excess emission report under subd. (b), as specified in writing by the department. (a) The full excess emission reports required under this subsection shall contain the following information: i. The date and starting and ending times or d uration of each period of excess emissions and the magnitude of the
emissions. ii. The periods of excess emissions that occur during startups, shutdowns, process malfunction, fuel problems, other known causes or for unknown causes. The report
shall identif

y the cause of any malfunction and the
measures taken to reduce excess emissions. iii. The date and starting and ending time of any period during which the monitoring system was inoperative for any reason or causes, including monitor malfunction or
calibra tion, except for zero and span checks. The report shall identify the repairs or adjustments made to the system. iv. The date and starting and ending time of any period during which the process being monitored was inoperative. v. When no period of excess em issions occurred during the quarter and the monitoring system had no period of downtime, an excess emissions report shall be filed stating
such information. (b) The summary excess emission report shall be submitted on a form provided by the department or i n a format approved by the department, in writing. (c) An excess emission of particulate matter is defined as :FID No. 737227040
, Permit No. 10

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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db). ii. demonstrating compliance with the pa rticulate matter emission limitation in cond. a.3. of this section; and iii. demonstrating compliance with the sulfur dioxide
emission limitation in cond. I.B .2.a.(1) of this permit (c) Compliance with the emission limitation for natural gas
combustion sha ll be demonstrated by combusting only pipeline quality natural gas. (s. NR 439.04, Wis. Adm. Code) i. any 1

- hour period in which the particulate matter
emission rate for a boiler exceeds the 1

- hour emission rate
in conds. I.B.1.a. (7) of this p ermit ; i i. any 24

- hour period in which the particulate matter
emission rate for a boiler exceeds the 24

- hour emission rate
in cond. I.B.1.a. (1) or ( 3 ) of this permit
(ss. NR 405.08 and NR 439.09(10), Wis. Adm. Code; 40
CFR 60.46b and s. 285.65(13), Stat s.)FID No. 737227040
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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db).

2. Sulfur Dioxide

a. Limitations:

(1) 8 pounds in any hour; and

(2) 3.25 tons i n any month averaged over any 12

- month period from boilers B01 and B02 (combined)

(3) Heat input to the boiler from natural gas shall be less than 250 mmBtu per hour.

(4) Fuel limitations as specified in cond. B.2.b.(1) of this permit

(5) 0.20 pounds/MM BTU heat input averaged over any 30 consecutive day period (40 CFR 60.42b and s. 285.65( 13) Wi Stats.)

(s. NR 404.04, Wis. Adm. Code and s. 285.65(7), WI Stats. and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) The boiler may only combust pipeline quality natural gas and biomass as defined in cond. ZZZ.1.a.(2) of this permit (s. 285.65(7), Wis. Stats.)

(2) Prior to startup of a boiler, the permittee shall install a continuous emission monitor (CEM) for mea suring sulfur dioxide emissions which meet the requirements of 40 CFR Part 75, s. NR 440.20(7)(b), Wis. Adm. Code and s. NR 439.06(4), Wis. Adm. Code. (ss. NR 405.08 and NR 439.09(2) Wis. Adm. Code and s. 285.65(13), Stats.)

(3) The permittee shall calib rate, maintain, and operate the continuous emission monitoring system (CEM) required to be installed under cond. I.B.2.b.(2) of this permit. The CEM for a boiler shall be operational whenever sulfur dioxide may be emitted from boiler B01 [ ss. NR 407.09(4) (a)1., and NR 439.09(5), Wis. Adm. Code ]

(4) Within 90 days of startup of a boiler, the CEM for that boiler shall be certified in accordance with 40 CFR Part 75, s. NR 440.20(7)(b), Wis. Adm. Code and s. NR 439.06(4), Wis. Adm. Code. (s. NR 405.08, Wis. Adm. Code and s. 285.65(13), Stats.)

(5) Within 120 days of startup of a boiler, the permittee shall submit a QA/QC plan for the SO2 CEM for that boiler to the Department for review.

(6) The permittee shall follow a quality control and quality

assurance plan, prior to Department approval and as approved by the Department, for the continuous emission (1) Reference Test Method for Sulfur Dioxide Emissions: Whenever compliance emission testing is required, US EPA Method 6, 6A or 6C shall be used to demon strate compliance or an alternate method approved in writing by the Department, shall be used. [s. NR 439.06(2), Wis.
Adm. Code ] (2) The permittee shall maintain daily records, summarized monthly, of all of the following and make such records
available within 5 days of the end of any month:
(a) the total heat input to boiler B01 from all fuels;
(b) the total heat input rate to boiler B01 from natural gas used in that month; and
(c) a record of the 15 minute CEM readings for each hour of boiler operation and the hourly emission rate for each hour of operation

. (s. 285.65(13), Wis. Stats.; s. NR 439.04(1), Wis. Adm. Code and NSPS; s. NR 440.205(10)(d), Wis. Adm. Code)

(3) The permittee shall maintain the following records:
(a) A copy of the QA/QC plan for the CEM;
(b) Any records required under the QA/QC plan; (c) Design plans or specifications that indicate that the boiler does not have the capacity of combusting more than 250 MMBTU/hour of natural gas.

[s. NR 439.04(1), Wis. Adm. Code]

(4) The owner or operator of a continuous emissionsFID No. 737227040
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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db). monitoring system (CEM) required by conditions I.B.2.b.(2)&(3) [ ss. NR 407.09(4)(a)1., and NR 439.09(8), Wis. Adm. Code]

(7) The permittee shall demonstrat e compliance with the SO2 emission limits by summing the 15 minute CEM readings and generating an hourly average SO2 emission rate (s. NR 405.08, Wis. Adm. Code)

(8) Initial compliance emission tests shall be conducted within 180 days after initial operat ion of the process to show compliance with the emission limitation. [s. NR 439.07, Wis. Adm. Code] monitoring system shall submit quarterly excess emission reports to the department within 30 days following the end of each calendar quarter in accordance with subd. (a). The owner or operator shall submit either a full e xcess emission report under subd. (a) or a summary excess emission report under subd. (b), as specified in writing by the department. (a) The full excess emission reports required under this subsection shall contain the following information:
i. The date a nd starting and ending times or duration of each period of excess emissions and the magnitude of the
emissions. ii. The periods of excess emissions that occur during startups, shutdowns, process malfunction, fuel problems,
other known causes or for unknown causes. The report shall identify the cause of any malfunction and the
measures taken to reduce excess emissions. iii. The date and starting and ending time of any period during which the monitoring system was inoperative for any reason or causes, includi ng monitor malfunction or calibration, except for zero and span checks. The report shall identify the repairs or adjustments made to the system. iv. The date and starting and ending time of any period during which the process being monitored was inoperativ e. v. When no period of excess emissions occurred during the quarter and the monitoring system had no period of downtime, an excess emissions report shall be filed stating
such information. (b) The summary excess emission report shall be submitted
on a for m provided by the department or in a format approved by the department, in writing (c) An excess emission of sulfur dioxide is defined as
follows: i. any 1

- hour period in which the sulfur dioxide emission
rate for a boiler exceeds the 1

- hour emission rate in cond. I.B.2.a.(1) of this permit.
ii . any 30

- day period in which the sulfur dioxide emission
rate for a boiler exceeds the emission rate in cond. I.B.2.a.(5) of this permit
(ss. NR 405.08 and NR 439.09(10), Wis. Adm. Code ; 40
CFR60.47b )FID No. 737227040
, Permit No. 10

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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db).

3. Nitrogen oxides

a. Limitations: Best Available Control Technology (BACT): Emissions may not exceed:

(1) 0.10 pounds/MMBTU averaged over any 30 consecutive day period and use of Selective Non

- Catalytic Reduction (SNCR) (s. NR 405.08, Wis. Adm. Code and 10

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(2) 320 pounds in any hour; and (ss. NR 405.08 and NR 404.04, Wis. Adm. Code and 10

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(3) Fuel limitations as specified in cond. B.3.b.(1) of this permit (s. NR 405.08, Wis. Adm. Code and 285.65(13),
Stats. and 10

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(4) Heat input to the boiler from natural gas shall be less than 250 mmBtu per hour (s. NR 405.08, Wis. Adm. Code and
10

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(5) 0.20 pounds/MMBTU heat input
, including periods of startup, shutdown or malfunction , averaged over any 30 consecutive day period (40CFR60.44b and s. 285.65(13) Wi Stats.)

b. Compliance Demonstration: c. Test Methods, Recordkeep ing, and Monitoring:
(1) The boiler may only combust pipeline quality natural gas and biomass as defined in cond. ZZZ.1.a.(2) of this permit (s. NR 405.08, Wis. Adm. Code)

(2) Prior to startup of the boiler, the permittee shall install a
continuous emiss ion monitor (CEM) for measuring nitrogen oxide emissions which meet the requirements of 40 CFR Part 75, s. NR 440.20(7)(b), Wis. Adm. Code and s. NR 439.06(4), Wis. Adm. Code. (ss. NR 405.08 and NR 439.09(2) Wis. Adm. Code and s. 285.65(13), Stats.)

(3) The permittee shall calibrate, maintain, and operate the continuous emission monitoring system (CEM) required to be installed under cond. I.B.3.b.(2) of this permit. The CEM for a boiler shall be operational whenever nitrogen oxides may be emitted from bo iler B01 [ ss. NR 407.09(4)(a)1., and NR 439.09(5), Wis. Adm. Code ]

(4) Within 90 days of startup of the boiler, the CEM for
that boiler shall be certified and correlated in accordance with 40 CFR Part 75, s. NR 440.20(7)(b), Wis. Adm. Code
and s. NR 439.0 6(4), Wis. Adm. Code. (s. NR 405.08, Wis. Adm. Code and s. 285.65(13), Stats.)

(5) Within 120 days of startup of the boiler, the permittee shall submit a QA/QC plan for the PM CEM for that boiler to the Department for review. (1) The permittee shall keep a record of any fuel received for use in boiler B01 which is not natural gas or biomass [s. NR 439.04(1)(d), Wis. Adm. Code.] (2) The permit tee shall maintain daily records, summarized monthly of all of the following and make such records available within 5 days of the end of any month:
(a) the total heat input to boiler B01 from all fuels;
(b) the total heat input rate to boiler B01 from each fuel used in that month; (c) The calculated emission rates required under cond. B.3.b.(7) of this permit, and;
(d) a record of the 15 minute CEM readings for each hour of boiler operation and the hourly emission rate for each hour of operation

. (s. 285.65 (13), Wis. Stats.; s. NR 439.04(1), Wis. Adm. Code and NSPS; s. NR 440.205(10)(d), Wis. Adm. Code)

(3) The permittee shall maintain the following records:
(a) A copy of the QA/QC plan for the CEM;
(b) Any records required under the QA/QC plan; [s. NR 439. 04(1), Wis. Adm. Code]

(4) The owner or operator of a continuous emissions monitoring system shall submit quarterly excess emission reports to the department within 30 days following the end of each calendar quarter in accordance with subd. (a). TheFID No. 737227040
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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db). (6) The permittee shall fol low a quality control and quality assurance plan, prior to Department approval and as approved by the Department, for the continuous emission monitoring system (CEM) required by conditions I.B.3.b.(2)&(3) [ ss. NR 407.09(4)(a)1., and NR 439.09(8),
Wis. Adm . Code]

(7) The permittee shall demonstrate compliance with the
NOx emission limitations as follows: (a) Compliance with the hourly emission rate shall be determined by summing the 15 minute CEM readings and generating an hourly average emission rate. (b ) Compliance with any 30

- day average emission limitation shall be determined using the following methodology: i. Averaging the valid 15 minute NOx measurements in any hour to determine an hourly average NOx emission rate; ii. Calculating the average 30

- d ay emission rate by averaging the hourly emission rates for each hour of operation in the past 30 days ; and
iii. A new 30

- day rolling average emission rate is calculated each operating day as the average of all of the hourly NOx emission data for the prec eding 30 operating days

.

(d ) No hour in which the boiler is non

- operational may be used to determine compliance with any NOx emission
limitation.

(8) Initial compliance emission tests shall be conducted within 180 days after initial operation of the boil er to show compliance with the emission limitation. [s. NR 439.07, Wis. Adm. Code] owner or operator shall submit either a full excess emission report under subd. (a) or a summary excess emission report under subd. (b), as specified in writing by the department. (a) The full excess emission reports required under this
subsection shall contain the following information: i. The date and starting and ending times or duration of each period of excess emissions and the magnitude of the
emissions. ii. The periods of excess emissions that occur during startups, shutdowns, process malfunction, fuel pr oblems, other known causes or for unknown causes. The report shall identify the cause of any malfunction and the
measures taken to reduce excess emissions. iii. The date and starting and ending time of any period during which the monitoring system was inop erative for any reason or causes, including monitor malfunction or calibration, except for zero and span checks. The report shall identify the repairs or adjustments made to the system. iv. The date and starting and ending time of any period during which t he process being monitored was inoperative. v. When no period of excess emissions occurred during the quarter and the monitoring system had no period of downtime, an excess emissions report shall be filed stating
such information. (b) The summary excess em ission report shall be submitted on a form provided by the department or in a format approved by the department, in writing (c) An excess emission of nitrogen oxides is defined as
follows: i. any 1

- hour period in which the nitrogen oxides emission
rate for the boiler exceeds the 1

- hour emission rate in cond. I.B.3.a.(2) of this permit; or ii. any 30

- day period in which the nitrogen oxides emission
rate for the boiler exceeds the 30

- day average emission rate
in cond s . I.B.3.a.(1) &(5) of this permit.
(ss. N R 405.08 and NR 439.09(10), Wis. Adm. Code ; 40CFR60.46b and s. 285.65(13), Stats.)

(5) Reference Test Method for Nitrogen Oxide Emissions: Whenever compliance emission testing is required, US EPA Method 7 or an alternate method approved in writing by th e Department shall be used to demonstrate compliance or an alternate method approved in writing by the Department, shall be used. [s. NR 439.06(6), Wis. Adm. Code]FID No. 737227040
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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db).

4. Carbon Monoxide (CO)

a. Limitations: BACT and MACT 7 . Emissions may not exceed:

(1) 0.12 pounds/MMBTU heat input averaged over any 12

- month period including all periods of operation (MACT and BACT) ;

(2) 0.12 pounds/MMBTU heat input averaged over any 30

- day period excluding periods of boiler startup and shutdown (MACT and BACT); and

(3) 800 pounds in any hour.

(s. NR 405.08, Wis. Adm. Code and s. 285.65(13), Stats. and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) Prior to startup of a boiler, the permittee shall install a continuous emission monitor (CEM) for measuring carbon
monoxide emissions from that boiler which meets the requirements of Performance Specification 4 in 40CFR Part 60, Appendix B (s. NR 405.08 and NR 439.09(4), Wis. Adm. Code)

(2) The permittee shall maintain, calibrate and operate the continuous emission monitoring system (CEMS) required
to be installed und er cond. I.B.4.b.(1) of this permit. The CEM for a boiler shall be operational whenever carbon monoxide may be being emitted from the boiler [ ss. NR 407.09(4)(a)1., and NR 439.09(5), Wis. Adm. Code ]

(3) Within 90 days of startup, the CEM shall be certifi ed in accordance with Performance Specification 4 in 40CFR Part 60, Appendix B (s. NR 405.08 and NR 439.09(4), Wis. Adm. Code)

(4) Within 120 days of startup of a boiler, the permittee shall submit a QA/QC plan for the CO CEM for that boiler to the Depart ment for review.

(5) The permittee shall follow a quality control and quality assurance plan, prior to Department approval and as approved by the Department, for the continuous emission monitoring system (CEMS) required by condition s I.B.4.b.(1)&(2). [ s s. NR 407.09(4)(a)1., and NR 439.09(8), Wis. Adm. Code]

(6) The permittee shall demonstrate compliance with the
CO emission limit as follows: (a) Compliance with the hourly emission rate shall be determined by summing the 15 minute CEM readings and (1) Reference Test Method for Carbon Monoxide
Emissions: Whenever compliance emission testing is

re quired, US EPA Method 10, 10A or 10B or an alternate method approved in writing by the Department shall be used to demonstrate compliance. (s. NR 439.06(4), Wis. Adm. Code)
(2) The permittee shall maintain daily records, summarized monthly of all of the following and make such records available within 5 days of the end of any month:
(a) the total heat input to boiler B01 from all fuels;
(b) the total heat input rate to boiler B01 from each fuel used in that month; and
(c) The calculated emission rates req uired under cond. I.B.4.b.(6) of this permit, and;
(d) a record of the 15 minute CEM readings for each hour of boiler operation and the hourly emission rate for each hour of operation

. (s. 285.65(13), Wis. Stats.; s. NR 439.04(1), Wis. Adm. Code and NSPS; s. NR 440.205(10)(d), Wis. Adm. Code)
(3) The permittee shall maintain the following records:

(a) A copy of the QA/QC plan for the CEM;
(b) Any records required under the QA/QC plan; [s. NR 439.04(1), Wis. Adm. Code]

(4) The owner or operator of a contin uous emissions monitoring system shall submit quarterly excess emission reports to the department within 30 days following the end of each calendar quarter in accordance with subd. (a). The owner or operator shall submit either a full excess emission

repor t under subd. (a) or a summary excess emission report under subd. (b), as specified in writing by the department.

7 The MACT emission li mitation is for control of organic HAP’s (i.e. products of incomplete combustion).FID No. 737227040
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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db).

gener ating an hourly average emission rate. (b) Compliance with any 30

- day average emission limitation shall be determined using the following methodology: i. Averaging the valid 15 minute NOx measurements in any hour to determine an hourly average NOx emissio n rate; ii. Calculating the average 30

- day emission rate by averaging the hourly emission rates for each hour of operation in the past 30 days ; and
iii. A new 30

- day rolling average emission rate is calculated each operating day as the average of all of the hourly NOx emission data for the preceding 30 operating days

. (c) No period in which the boiler is not operating may be used in calculating the average emissions from the boiler. (s. NR 405.08, Wis. Adm. Code)

(7) Initial compliance emission tests shall be conducted within 180 days after initial operation of the boiler to show compliance with the emission limitation. 8 [s. NR 439.07, Wis. Adm. Code] (a) The full excess emission reports required under this subsection shall contain the following information: i. The date and starting and endi ng times or duration of each period of excess emissions and the magnitude of the
emissions. ii. The periods of excess emissions that occur during startups, shutdowns, process malfunction, fuel problems, other known causes or for unknown causes. The report shall identify the cause of any malfunction and the
measures taken to reduce excess emissions. iii. The date and starting and ending time of any period during which the monitoring system was inoperative for any reason or causes, including monitor malfuncti on or calibration, except for zero and span checks. The report shall identify the repairs or adjustments made to the system. iv. The date and starting and ending time of any period during which the process being monitored was inoperative. v. When no period of excess emissions occurred during the quarter and the monitoring system had no period of downtime, an excess emissions report shall be filed stating
such information. (b) The summary excess emission report shall be submitted on a form provided by the de partment or in a format approved by the department, in writing (c) An excess emission of carbon monoxide is defined as
follows: i. any 1

- hour period in which the carbon monoxide
emission rate for the boiler exceeds the 1

- hour emission
rate in cond. I.B.4.a .(3) of this permit; or ii. any 30

- day period in which the carbon monoxide
emission rate for the boiler exceeds the 30

- day average emission rate in cond. I.B.4.a.(2) of this permit. iii. any 12

- month period in which the carbon monoxide
emission rate for th e boiler exceeds the 12 month emission rate in cond. I.B.4.a.(1) of this permit
(ss. NR 405.08 and NR 439.09(10), Wis. Adm. Code)

8

.FID No. 737227040
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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler
is subject to NSPS (Part 60, Subparts D and Db).

5. Volatile organic compounds (VOC)

a. Limitations: BACT.

(1) Comply with the carbon monoxide emissions limitations in conds. I.B.4.a.(1), (2) and (3) of this permit.

(s. NR 405.08, Wis. Adm. Code and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:

(1) Comply with the requirements of conds. I.B.4.b.(1)

- (6) of this permit (s. NR 405.08, Wis. Adm. Code)

(2) Initial emission tests shall be conducted within 180 day s after initial operation of the boiler to determine the VOC emission rate from boiler B01. [s. NR 439.07, Wis. Adm. Code] (1) Reference Test Method for VOC Emissions: Whenever compliance emission testing is required, US EPA Method
25A or an alternate me thod approved in writing by the Department shall be used to demonstrate compliance. [s. NR 439.06(3)(a), Wis. Adm. Code]
(2) Comply with the recordkeeping requirements of conds. I.B.4.c.(2)

- (4) of this permit (s. NR 439.04, Wis. Adm. Code)

B. Boi ler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db).

6. Fluorides

a. Limitations: BACT.

(1) Combust only biomass or natural gas in boiler B01.

(s. NR 405.08, Wis. Adm. Code and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:

(1) Combust only biomass or natural gas in boiler B01 (s. NR 405.08, Wis. Adm. Code). (2) Initial emission tests shall be conducted with in 180 days after initial operation of the boiler to determine the fluoride emission rate from boiler B01. [s. NR 439.07, Wis. Adm. Code] (1) Reference Test Method for Fluoride Emissions: Whenever compliance emission testing is required, US
EPA Method 13 or 13A or an alternate method approved in writing by the Department shall be used to demonstrate compliance. [s. NR 439.06, Wis. Adm. Code]
(2) Comply with the recordkeeping requirements of cond. I.B.1.c.(3) of this permit (s. NR 439.04, Wis. Adm. Code)FID No. 737227040
, Permit No. 10

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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db).

7. Visible Emissions (Opacity)

a. Limitations: BACT.

(1) Not more than 10% opacity ; and

(2) Combust only biomass or natural gas in boiler B01.

(ss. NR 405.08 and NR 431.05, Wis. Adm. Code and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:

( 1) Comply with the requirements of conds. I.B.1.b.(1 )

- (9) of this permit (s. NR 405.08, Wis. Adm. Code) (2) Initial compliance emission tests shall be conducted within 180 days after the start of operation of the process to show compliance with the emission limitation. [s. NR 439.07, Wis. Adm. Code]

( 3 ) Pr ior to startup of a boiler, the permittee shall install a continuous opacity monitor (COM) for measuring opacity from the boiler which meets the requirements of 40 CFR Part 60, Appendix B , Performance Specification 1 (s. NR 405.08 and NR 439.09(1 ), Wis. Ad m. Code)

( 4 ) The permittee shall maintain, calibrate and operate the continuous opacity monitoring system (CO MS) required to
be insta lled under cond. I.B.7.b.( 3 ) of this permit. The
COM for the boiler shall be oper ational whenever the boiler is operating [ ss. NR 407.09(4)(a)1., and NR 439.09(1 ), Wis. Adm. Code ]

( 5 ) W ithin 90 days of startup, the CO M shall be certified in
accordance with Performance Specification 1 in 40 CFR Part 60, Appendix B (s. NR 405.08 and NR 439.09(4), Wis. Adm. Code)

( 6 ) Within 1 20 days of startup of a boiler, the permittee shall submit a QA /QC plan for the COM for the boiler to the Department for review.

( 7 ) The permittee shall follow a quality control and quality assurance plan, prior to Department approval and as approved by the Department, for the continuous opacity monitoring system (COM ) required by condition s I.B.7.b.(3)&(4). [ ss. NR 407.09(4)(a)1., and NR 439.09(8), Wis. Adm. Code]

( 8 ) The permittee shall demonstrate compliance with the (1) Reference Test Method for Opacity: Whenever compliance emission testing is requir ed, US EPA Method 9 or an alternate method approved in writing by the Department, shall be used to demonstrate compliance. [s. NR 439.06(9), Wis. Adm. Code]
(2) Comply with the recordkeeping requirements of cond. I.B.1.c.(1)

- ( 4 ) of this permit (s. NR 439. 04, Wis. Adm. Code)

( 3 ) The permittee shall maintain

a record of the 6

- minute average COM readings for each hour of boiler operation (s. NR 439.04(1), Wis. Adm. Code);
( 4 ) The permittee shall maintain the following records:

(a) A copy of the QA/QC pl an for the CEM;
(b) Any records required under the QA/QC plan

. [s. NR 439.04(1), Wis. Adm. Code]

( 5 ) The owner or operator of a continuous opacity monitoring system shall submit quarterly excess emission reports to the department within 30 days following the end of each calendar quarter in accordance with subd. (a). The owner or operator shall submit either a full excess emission report under subd. (a) or a summary excess emission report under subd. (b), as specified in writing by the department. (a) The f ull excess emission reports required under this subsection shall contain the following information: i. The date and starting and ending times or duration of each period of excess emissions and the magnitude of the
emissions. ii. The periods of excess emiss ions that occur during startups, shutdowns, process malfunction, fuel problems, other known causes or for unknown causes. The report shall identify the cause of any malfunction and the
measures taken to reduce excess emissions. iii. The date and starting a nd ending time of any periodFID No. 737227040
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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db).

visible emission limit as follows : (a) by completing one cycle of sampling and analyzing for each successive 10−second period; and (b) one cycle of data recording for each successive 6−minute period. during which the monitoring system was inoperative for any reason or causes, including monitor malfunction or calibration, except for zero and span checks. The report shall identify the repairs or adjustments made to the system

. iv. The date and starting and ending time of any period during which the process being monitored was inoperative. v. When no period of excess emissions occurred during the quarter and the monitoring system had no period of downtime, an excess emissions r eport shall be filed stating
such information. (b) The summary excess emission report shall be submitted on a form provided by the department or in a format approved by the department, in writing (c) An excess emission of opacity is defined as any
6−minute period during which the average opacity exceeds the applicable emission limit.
(ss. NR 405.08 and NR 439.09(10)(b)1., Wis. Adm. Code)FID No. 737227040
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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boil er is subject to NSPS (Part 60, Subparts D and Db).

8 . Mercury

a. Limitations: MACT 9

(1) Not more than 0.2 x 10 - 6 pounds/MMBTU (0.2 pounds per trillion BTU heat input) heat. This limitation applicable at all times with complia nce de m onstr a ted thr o u gh a stack test and fuel mercury content limitations.

(s. 285.65(13), Wis. Stats. and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:

( 1) Within 180 days of initial operation, conduct a stack test
on boiler B01 to demonstrate compliance with the mercury emission limitation in cond. I.B.8.a.(1) of this permit. This test to be repeated annually within 60 days of the anniversary date of the initial compliance test. (s. 285.65(13), Stats.) (2) At a minimum of 6 months prior to commencing operation of boiler B01, submit a plan for monitoring the fuel mercury content to ensure that the mercury emission limitations are being met. The Department, after public comment, may approve, amend or disapprove this plan.
Boiler B0 1 may not operate without an approved monitoring plan (s. NR 405.08, Wis. Adm. Code). (1) Reference Test Method for Mercury Emissions: Whenever compliance emission testing is required, US EPA Method 29, ASTM

- D6784

- 02 or an alternate method approved in wri ting by the Department shall be used to demonstrate compliance. [s. NR 439.06, Wis. Adm. Code]

B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D an d Db).

9. Dioxin/Furans

a. Limitations: MACT. 10

(1) Not more than 0.007 nanograms per dry standard cubic meter (ng/dscm) as toxic equivalents (TEQ), corrected

9

, The final U.S. EPA Boiler MACT rule (proposed 40 CFR Part 63, Subpart DDDDD, "National Emission Standards for Hazardous Air Pollutants for Major Sources: Industrial, Commercial and Institutional Boilers and Process Heaters"; Vol. 75 Federal Register No. 107, pp. 32006

- 32073; June 4, 2010) is scheduled to be issued before the date of the new emission unit (the boiler) becomes operational for this permitted source. If that occurs and if the new federal rule establi shes an emission limitation for di oxin/furans which is different from the limit set forth above, the permittee may file a permit revision request with the Department, seek ing to conform the permit limit with t he new federal Boiler MACT rule. Consistent with the requirements of Section 285.27(2), Wis. Stats., the Department will take action to consider the approval of the revision request pursuant to applicable air permit rules and procedures
which include the issuance of a public notice and opportunity for public comment.

10 The final U.S. EPA Boiler MACT rule (proposed 40 CFR Part 63, Subpart DDDDD, "National Emission Standards for Hazardous Air Pollutants for Major Sources: Industrial, Commercial and Institut ional Boilers and Process Heaters"; Vol. 75 Federal Register No. 107, pp. 32006

- 32073; June 4, 2010) is scheduled to be issued before the date of the new emission unit (the boiler) becomes operational for this permitted source. If that occurs and if the new federal rule establishes an emission limitation for mercury which is different from the limit set forth above, the permittee may file a permit revision request with the Department, seeking to co nform the permit limit with the new federal Boiler MACT ru le. Consistent with the requirements of Section 285.27(2), Wis. Stats., the Department will take action to consider the approval of the revision request pursuant to applicable air permit rules and proc edures which include the issuance of a public notice a nd opportunity for public comment.FID No. 737227040
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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D an d Db). to 7% oxygen on a 3

- hour average.

(s. 285.65(13), Wis. Stats. and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) Comply with all of the compliance demonstration requirements of conds. I.B.4.b., I.B.8.b. and I.B.10.b. of this permit (s. 285.65(13), Stats.) (2) Within 180 days of initial operation, co nduct a stack
test on boiler B01 to determine the dioxin and furan emission rates for this boiler. This test shall be repeated every 5 years within 60 days of the anniversary date of the initial test. (s. 285.65(13), Stats.) (1) Reference Test Method for dioxin Emissions: Whenever compliance emission testing is required, US EPA Method 23 or an alternate method approved in writing by the Department shall be used to demonstrate compliance. [s. NR 439.06, Wis. Adm. Code]
(2) Comply with all of the recordkee ping requirements of conds. I.B.4.c., I.B.8.c. and I. B.10.c

. of this permit (s. NR 439.04, Wis. Adm. Code)

B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, S ubparts D and Db).

10. Hydrogen Chloride (HCl)

a. Limitations: MACT. 11

(1) Not more than 0.004 pounds/MMBTU heat input

. This limitation applicable at all times with compli ance de m onstr a ted thr o ugh a stack test and fuel chlorine content limitations.

(s . 285.65(13), Wis. Stats. and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:

(1) Within 180 days of initial operation, conduct a stack test on boiler B01 to demonstrate compliance with the HCl
emission limitatio n in cond. I.B.10.a.(1) of this permit. This test to be repeated annually within 60 days of the anniversary date of the initial compliance test. (s. 285.65(13), Stats.) (2) At a minimum of 6 months prior to commencing operation of boiler B01, submit a plan for monitoring the
fuel chlorine content to ensure that the HCl emission limitations are being met. The Department, after public comment, may approve, amend or disapprove this plan. Boiler B01 may not operate without an approved monitoring plan (s. NR 405.08, Wis. Adm. Code). (1) Reference Test Method for HCl Emissions: Whenever compliance emission testing is required, US EPA Method 26 or 26A or an alternate method approved in writing by the Department shall be used to demonstrate compliance. [s. N R 439.06, Wis. Adm. Code]

11 The final U.S. EPA Boiler MACT rule (proposed 40 CFR Part 63, Subpart DDDDD, "National Emission Standards for Hazardous Air Pollutants for Major Sources: Industrial, Commercial and Institutional Boilers and Process Hea ters"; Vol. 75 Federal Register No. 107, pp. 32006

- 32073; June 4, 2010) is scheduled to be issued before the date of the new emission unit (the boiler) becomes operational for this permitted source. If that occurs and if the new federal rule establishes an emission limitation for mercury which is different from the limit set forth above, the permittee may file a permit revision request with the Department, seeking to co nform the permit limit with the new federal Boiler MACT rule. Consistent with the requ irements of Section 285.27(2), Wis. Stats., the Department will take action to consider the approval of the revision request pursuant to applicable air permit rules and proc edures which include the issuance of a public notice and opportunity for public com ment.FID No. 737227040
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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, S ubparts D and Db).FID No. 737227040
, Permit No. 10

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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db).

11. Greenhouse Gases
(a) Limitations: BACT.

(1) Greenhouse g as emissions may not exceed 3, 050 pounds of CO 2 per MWh of gross output, averaged over any
consecutive 12

- month period.

Gross output means the gross useful work performed by the steam generated. When the unit is generating only electricity, the gross usef ul work performed is the gross electrical output from the turbine/generator set. For cogeneration, the gross useful work performed is the gross electrical output plus 75 percent of the useful thermal output measured relative to ISO conditions that is not used to generate additional electrical output (i.e., steam delivered to an industrial process).

. (s. NR 405.08, Wis. Adm. Code)

b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) Prior to startup of a boiler, the permittee shall install, maintain, calibrate and operate a continuous emission monitor (CEM) for measuring carbon dioxide
emissions from that boiler which meets the requirements of Performance specification 2 in 40CFR part 60, Appendix B. (ss. NR 405.08 and NR
439.0 9(2), Wis. Adm. Code).

(2) The permittee shall calibrate, maintain, and operate the continuous emission monitoring system (CEMS) required to be installed under cond. I.A.11.b.(1) of this permit. The CEM for a boiler shall be operational
whenever carbon d ioxide may be being emitted from that boiler [ ss. NR 407.09(4)(a)1., and NR 439.09(5),
Wis. Adm. Code ]

(3) Within 90 days of startup of a boiler, the CEM for
that boiler shall be certified in accordance with Performance specification 2 in 40CFR part 60,
A ppendix B (ss. NR 405.08 and NR 439.09, Wis. Adm. Code)

(4) Within 120 days of startup of a boiler, the permittee shall submit a QA/QC plan for the CO2 CEM for that boiler to the Department for review (ss. NR 405.08 and NR 439.04(1), Wis. Adm. Code)

(5) The permittee shall follow a quality control and quality assurance plan, prior to Department approval and as approved by the Department, for the continuous emission monitoring system (CEMS) required by
condition s I.B.11.b.(1)&(2). [ ss. NR 407.09(4)(a)1.
, and NR 439.09(8), Wis. Adm. Code]

(6) Prior to startup of a boiler, the permittee shall (1) Reference Test Method for Carbon Dioxide Emissions: Whenever compli ance emission testing is required, US EPA Method 3A or an alternate method approved in writing by the Department shall be used to demonstrate compliance. [s. NR 439.06(6), Wis. Adm. Code]

(2) The permittee shall maintain all of the following records: (a) The calculated emission rates required under cond. A.1.3.b.(7) of this permit. The 30

- day period calculations shall be available within 5 days of the end of any 30

- day period;
(b) A copy of the QA/QC plan for the CEM;
(c) Any records required under the Q A/QC plan;
(d) a record of the hourly CEM readings, for each hour of boiler operation and the hourly emission rate for each hour of operation;
(e) a daily record of the quantity of natural gas in cubic feet and heat input to the boiler.
(s. NR 439.04(1), Wis. Adm. Code)

(3) The owner or operator of a continuous emissions monitoring system shall submit quarterly excess emission reports to the department within 30 days following the end of each calendar quarter in accordance with subd. (a). The owner or ope rator shall submit either a full excess emission report under par. (a) or a summary excess emission report under par. (b), as specified in writing by the department. (a) The full excess emission reports required under this
subsection shall contain the foll owing information: i. The date and starting and ending times or duration of each period of excess emissions and the magnitude of the emissions. ii. The periods of excess emissions that occur during startups, shutdowns, process malfunction, fuel problems, o ther known causes or for unknown causes. The report shall identify the cause of any malfunction and the measures taken to reduce excessFID No. 737227040
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B. Boiler B01

– Biomass and natural gas fired boiler with a capacity not to exceed 800 MMBTU/hour. The boiler is subject to NSPS (Part 60, Subparts D and Db). install, maintain, calibrate and operate a wattmeter to measure gross electrical output in MWh on a
continuous basis.

(7) Prior to startup of a boiler, the permitte e shall install, maintain, calibrate and operate meters for steam flow, temperature and pressure; and measure gross process steam output in pounds per hour and MW

hours on a continuous basis.

(8) The permittee shall demonstrate compliance with
the CO 2 emi ssion limitations as follows:

(a) Compliance with any 12

- month average emission limitation shall be determined using the following methodology: i. Averaging the valid 15 minute CO2 measurements in any hour to determine an hourly average CO2 emission

rat e; ii. Calculating the average 12

- month emission rate by averaging the hourly emission rates for each hour of operation in the past 12 months; and
iii. A new 12

- month average emission rate is calculated each month as the average of all of the hourly CO2 emission data for the preceding 12 month period

. (s. NR 405.08, Wis. Adm. Code)

(9) The boiler may only combust pipeline quality natural gas and biomass as defined in cond. ZZZ.1.a.(2) of this permit (s. 285.65(7), Wis. Stats.) (s. NR 405.08,
Wis. Adm. C ode)

(10) Initial compliance emission tests shall be conducted within 180 days after the initial operation of the boiler to show compliance with the emission
limitation. 12 [s. NR 439.07, Wis. Adm. Code]

(11) The permittee shall perform the compliance
emis sion tests required under condition I. B

. 11 .b.( 10 ) every 60 months within 60 days from the date of the anniversary date of the original stack test. [s. NR 439.075(1)(b) Wis. Adm. Code] emissions. iii. The date and starting and ending time of any period during which the monitoring system was inoperative f or any reason or causes, including monitor malfunction or calibration, except for zero and span checks. The report shall identify the repairs or adjustments made to the system. iv. The date and starting and ending time of any period during which the proces s being monitored was inoperative. v. When no period of excess emissions occurred during the quarter and the monitoring system had no period of downtime, an excess emissions report shall be filed stating such information. (b) The summary excess emission re port shall be submitted on a form provided by the department or in a format approved by the department, in writing (c) An excess emission of carbon dioxide is defined as follows: i. Any consecutive 12

- month period in which the carbon dioxide
emission rate exceeds the consecutive 12

- month period emission
rate in cond. I.B

. 11.a.(1) of this permit

. (ss. NR 405.08 and NR 439.09(10), Wis. Adm. Code)

12 If the compliance emission tests cannot be conducted within 180 days after the start of initial operation, the permit holder may request and the Department may approve, in writing, an extension of time to conduct the test(s). See I.ZZZ.4.FID No. 737227040
, Permit No. 10

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C. P121 , S121

– Biomass fuels material handling processes (unloading, screening, hogging and conveyin g)

1 Particulate Matter including PM10 and PM2.5 (PM)

a. Limitations: Best Available Control Technology (BACT):

(1) PM

- 0.004 grains per dry standard cubic foot of exhaust gas

(2) 3.75 pounds per hour

(3) All material conveyors shall be fully enclos ed

(s. NR 405.08, Wis. Adm. Code)

b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) Initial compliance emission tests for the dust collection system for P121 shall be conducted within 180 days of startup of P121 in accordan ce with cond. I. ZZZ.4. of this permit [s. NR 439.07, Wis. Adm. Code]

(2) All material handling operations shall be conducted in an enclosed building or within enclosures. Such enclosures or buildings shall be equipped with a dust collections system and baghouse or use a wet dust suppression system whenever solid material may become airborne.

(3) The pressure drop across the fabric filter baghouse or baghouse system shall be maintained within the range identified by testing in condition I.C.1.b.(1). of this permit. [s. NR 407.09(4)(a)1., Wis. Adm. Code]

(4) Whenever fugitive dust emissions are observed from the process, the permittee shall take corrective actions to prevent fugitive dust from becoming airborne. [s. 285.65(3), Wis. Stats

(5) All materia l conveyors shall be fully enclosed (s. NR 405.08, Wis. Adm. Code) (1) Reference Test Method for Particulate Matter
Emissions: Whenever compliance emission testing is required for PM10, US EPA Method 5, including backhalf (Method 202) shall be used to dem onstrate compliance or an alternate method approved in writing by the Department, shall be used. [s. NR 439.06(1), Wis. Adm. Code]

(2) Whenever compliance emission testing is required for PM2.5, US EPA Method 201A for filterable and US EPA
Method 202 fo r condensable particulate for condensable shall be used to demonstrate compliance or an alternate method approved in writing by the Department, shall be used. [s. NR 439.06(1), Wis. Adm. Code]

(3) The permittee shall record the pressure drop across the fabric filter baghouse system at least once each operating shift whenever the dust collection system is in operation. [s. NR 439.055(2)(b)1., Wis. Adm. Code]

(4) The permittee shall keep records of all inspections, checks and any maintenance or repairs performed on the dust collection system, containing the date of the action, a description of the action, initials of inspector, and the results. [s. NR 439.04(1)(d), Wis. Adm. Code]

(5) Instrumentation to monitor the pressure drop across the
fabric fil ter baghouse system shall be installed and operated properly. [s. NR 439.055(1)(a), Wis. Adm. Code]

(6)The permittee shall record the time and date when the wet dust suppression system is in operation, all opacity observations made during operation of th e wet suppression system and any corrective actions taken (including when taken) to prevent fugitive dust from becoming airborne (s. NR 439.04, Wis. Adm. Code)FID No. 737227040
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C. P121 , S121

– Biomass fuels material handling processes (unloading, screening, hogging and conveyin g)FID No. 737227040
, Permit No. 10

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C. P121 , S121

– Biomass fuels material handling processes (unloading, screening, hogging and conveying)
2. Opacity (visible emissions)

a. Limitations: Best Available Control Technology (BACT):

10% opacity [s. NR 431.05, Wis. Adm. Code, s. NR 405.08, Wis. Adm. Code]

b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Moni toring:
(1) Initial compliance emission tests for the dust collection system for P121 shall be conducted within 180 days of startup of P121 in accordance with cond. I. ZZZ.4. of this permit [s. NR 439.07, Wis. Adm. Code]

(2) All material handling operat ions shall be conducted in an enclosed building or within enclosures. Such enclosures or buildings shall be equipped with a dust collections system and baghouse or use a wet dust suppression system whenever solid material may become airborne [s. NR
406.10 and s. NR 407.09(4)(a)1., Wis. Adm. Code]

(3) The pressure drop across the fabric filter baghouse system shall be maintained within the range identified by condition I.C.1.b.(1). of this permit. [s. NR 407.09(4)(a)1., Wis. Adm. Code]

(3) The process sh all be monitored in accordance with a Fugitive Dust Control Plan. The Department may request the permittee to review and amend the plan if necessary to maintain emissions in compliance with emission limits. [s. 285.65(3), Wis. Stats.]

(4) Whenever fugiti ve dust emissions are observed from the process, the permittee shall take corrective actions to prevent fugitive dust from becoming airborne. [s. 285.65(3), Wis. Stats

(5) All material conveyors shall be fully enclosed (s. NR 405.08, Wis. Adm. Code) (1) R eference Test Method for Visible Emissions: Whenever compliance emission testing is required, US
EPA Method 9 or Method 22 shall be used to demonstrate compliance or an alternate method approved in writing by the Department, shall be used. [s. NR 439.06( 9)(a)1., Wis. Adm. Code]

(2) The permittee shall record the pressure drop across the fabric filter baghouse system at least once each operating shift whenever the dust collection system is in operation. [s. NR 439.055(2)(b)1., Wis. Adm. Code]

(3) The pe rmittee shall keep records of all inspections, checks and any maintenance or repairs performed on the dust collection system, containing the date of the action, a description of the action, initials of inspector, and the results. [s. NR 439.04(1)(d), Wi s. Adm. Code]

(4) Instrumentation to monitor the pressure drop across the fabric filter baghouse system shall be installed and operated properly. [s. NR 439.055(1)(a), Wis. Adm. Code]

(5)The permittee shall record the time and date when the
wet dust su ppression system is in operation, all opacity observations made during operation of the wet suppression system and any corrective actions taken (including when taken) to prevent fugitive dust from becoming airborne (s. NR 439.04, Wis. Adm. Code)FID No. 737227040
, Permit No. 10

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D

. F 122

– Self Unloading Truck Unloading Station

1 . Opacity (visible emissions)

a. Limitations: Best Available Control Technology (BACT):

5 % opacity [s. NR 431.05, Wis. Adm. Code, s. NR 405.08, Wis. Adm. Code]

b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) Initial compliance emission tests for F 122 shall be conducted within 180 days of startup of F 122 in accordance with cond. I. ZZZ.4. of this permit [s. NR 439.07, Wis. Adm. Code]

(2) Particulate matte r emissions shall be controlled using self unloading trucks in combination with the dust collection system for P121 and/or a wet dust suppression system [s. NR 406.10 and s. NR 407.09(4)(a)1., Wis. Adm. Code]

(3) The process shall be monitored in accorda nce with a Fugitive Dust Control Plan. The Department may request the permittee to review and amend the plan if necessary to maintain emissions in compliance with emission limits. [s. 285.65(3), Wis. Stats.]

(4) Whenever fugitive dust emissions are obser ved from the process, the permittee shall take corrective actions to prevent fugitive dust from becoming airborne. [s. 285.65(3), Wis. Stats

(5) All material conveyors shall be fully enclosed (s. NR 405.08, Wis. Adm. Code) (1) Reference Test Method for Vi sible Emissions: Whenever compliance emission testing is required, US
EPA Method 9 or Method 22 shall be used to demonstrate compliance or an alternate method approved in writing by the Department, shall be used. [s. NR 439.06(9)(a)1., Wis. Adm. Code]

( 2 )The permittee shall record the time when the wet dust suppression system is in operation, all opacity observations made during operation of the wet suppression system and any corrective actions taken (including when taken) to prevent fugitive dust from becoming airborne (s. NR 439.04, Wis. Adm. Code)

E

. F 123 Biomass fuel storage and reclaim

1 . Opacity (visible emissions)

a. Limitations: Best Available Control Technology (BACT):

5 % opacity [s. NR 431.05, Wis. Adm. Code, s. NR 405.08, Wis. Adm. Code ]

b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) Particulate matter emissions shall be controlled using a biomass fuels storage building designed to enclose the entire storage pile and the reclaim activities[s. NR 406 .10
and s. NR 407.09(4)(a)1., Wis. Adm. Code]

(2) The process shall be monitored in accordance with a Fugitive Dust Control Plan. The Department may request the permittee to review and amend the plan if necessary to maintain emissions in compliance with visible emission limit. [s. 285.65(3), Wis. Stats.] (1) Reference Test Method for Visible Emissions: Whenever compliance emission testing is required, US
EPA Method 9 or Method 22 shall be used to demonstrate compliance or an alternate met hod approved in writing by the Department, shall be used. [s. NR 439.06(9)(a)1., Wis. Adm. Code]

(3)The permittee shall record the time when any corrective actions taken (including when taken) to prevent fugitive dust from becoming airborne (s. NR 439.04 , Wis. Adm.FID No. 737227040
, Permit No. 10

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(3) Whenever fugitive dust emissions are observed from the process, the permittee shall take corrective actions to prevent fugitive dust from becoming airborne. [s. 285.65(3), Wis. Stats

(5) All materi al conveyors shall be fully enclosed (s. NR 405.08, Wis. Adm. Code) Code)

F . P131

, P132

– 

### Lime storage silo vent (P131) and 

### boiler ash system vents ( S131, S132A, S 132B)

1. Particulate Matter including PM10 and PM2.5 (PM) (BACT)

a. Limitations: Best Available Control Technology (BACT):

(1) P131, us e of silo bin vent system

(a) PM

- 0.004 grains per dry standard cubic foot of exhaust gas and 0. 034 p ounds per hour

(b) PM2.5

- 0.002 grains per dry standard cubic foot of exhaust gas and 0. 017 pounds per hour

(2) P132, S 132 A , use of ash storage v ent system #1

(a) PM

- 0.004 grains per dry standard cubic foot of exhaust gas and 0. 029 pounds per hour

(b) PM2.5

- 0.002 grains per dry standard cubic foot of exhaust gas and 0. 014 pounds per hour

(3) P132, S 132B, use of ash storage vent system #2

(a) PM

- 0.004 grains per dry standard cubic foot of exhaust gas and 0.0 2 9 pounds per hour

(b) PM2.5

- 0.002 grains per dry standard cubic foot of exhaust gas and 0.01 4 pounds per hour

( 4 ) All material conveyors shall be fully enclosed

[s. NR 415 .06(2)(c), Wis. Adm. Code, s. NR 405.08, Wis. Adm. Code,] (s. NR 405.08, Wis. Adm. Code)

b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) The permittee shall determine the hourly emissions using operating parameters and OE M emission factors within 180 days after the start of operation of the process to show compliance with the emission limitation. [s. 285.65(3), Wis. Stats.]

(2) Particulate matter emissions shall be controlled using a using silo bin vent system to meet the BACT limits. [s. NR 405.08(2), Wis. Adm. Code]

(3) The silo bin vent system be operated at all times when (1) Reference Test Method for Particulate Matter
Emissions: Whenever compliance emission testing is required for PM US EPA M ethod 5, including backhalf (Method 202) shall be used to demonstrate compliance or an alternate method approved in writing by the Department, shall be used. [s. NR 439.06(1), Wis. Adm. Code]

(2) Whenever compliance emission testing is required for
PM2 .5, US EPA Method 201A for filterable and US EPA
Method 202 for condensable shall be used to demonstrate compliance or an alternate method approved in writing byFID No. 737227040
, Permit No. 10

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F . P131

, P132

– 

### Lime storage silo vent (P131) and 

### boiler ash system vents ( S131, S132A, S 132B) the process is in operation [s. NR 406.10 and s. NR 407.09(4)(a)1., Wis. Adm. Code]

(4) The process shall be monitored in accordance with a Fugit ive Dust Control Plan. The Department may request the permittee to review and amend the plan if necessary to maintain emissions in compliance with emission limits. [s. 285.65(3), Wis. Stats.]

(5) Whenever fugitive dust emissions are observed from the

pro cess, the permittee shall take corrective actions to prevent fugitive dust from becoming airborne. [s. 285.65(3), Wis. Stats.]

(6) All material conveyors shall be fully enclosed (s. NR 405.08, Wis. Adm. Code)

(7) For P131, S131, the pressure drop across the bin vent filter shall be monitored at least once per day for any day that the process operates (s. NR 405.08, Wis. Adm. Code) the Department, shall be used. [s. NR 439.06(1), Wis. Adm. Code]

( 3 ) The permittee shall ke ep and maintain on site technical drawings, blueprints or equivalent records of the silo bin vent system [s. NR 439.04(1)(d), Wis. Adm. Code]

(4) The permittee shall keep records of all inspections, checks and any maintenance or repairs performed on the silo bin vent system, containing the date of the action, initials of inspector, and the results. [s. NR 439.04(1)(d), Wis. Adm. Code] ( 5 ) The permittee shall record the time and date when corrective actions are taken to prevent fugitive dust from being generated by the process (s. NR 439.04, Wis. Adm.
Code )

(6) A record of the pressure drop readings required under

c o nd. F.b.(7) of this permit (s. NR 439.04, Wis. Adm. Code)FID No. 737227040
, Permit No. 10

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F

. P131,P132A and P132B

– 

### Lime storage silo (P131) and 

### boiler ash silos ( P132A, P132B)

2. Opacity (visible emissions)

a. Limitations: Best Available Control Technology (BACT):

10% opacity [s. NR 431.05, Wis. Adm. Code, s. NR 405.08, Wis. Adm. Code]

b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monito ring:
(1) The silo bin vent system shall be operated at all times when the process is in operation. [s. NR 406.10 and s. NR 407.09(4)(a)1., Wis. Adm. Code]

(2) The process shall be monitored in accordance with a Fugitive Dust Control Plan. The Departme nt may request the permittee to review and amend the plan if necessary to maintain emissions in compliance with emission limits. [s. 285.65(3), Wis. Stats.]

(3) Whenever fugitive dust emissions are observed from the process, the permittee shall take corre ctive actions to prevent fugitive dust from becoming airborne. [s. 285.65(3), Wis. Stats ]

(4) All material conveyors shall be fully enclosed (s. NR 405.08, Wis. Adm. Code) (1) Reference Test Method for Visible Emissions: Whenever compliance emission test ing is required, US
EPA Method 9 or Method 22 shall be used to demonstrate compliance or an alternate method approved in writing by
the Department shall be used. [s. NR 439.06(9)(a)1., Wis. Adm. Code] (2) The permittee shall keep records of all inspectio ns, checks and any maintenance or repairs performed on the silo bin vent system, containing the date of the action, initials of inspector, and the results. [s. NR 439.04(1)(d), Wis. Adm. Code]

(3) The permittee shall record the time when corrective

act ions are taken to prevent fugitive dust from being generated by the process (s. NR 439.04, Wis. Adm.
Code )FID No. 737227040
, Permit No. 10

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G

. P14 1

– New cooling tower

1. Particulate Matter including PM10 and PM2.5 (PM) (BACT)

a. Limitations: Best Available Control Technolo gy (BACT):

(1) each cell shall be equipped, maintained and operated with high efficiency drift eliminators designed to limit the loss of droplets from the units to not more than 0.0005 percent of the water circulation rate;
(2) emissions may not exceed:
(a) 0.072 pounds per hour of total of PM.
(b) 0.000 16 pounds per hour of PM2.5.
(s. NR 405.08, Wis. Adm. Code)

b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:

(1) The total dissolved solids (TDS) concentration in the cooling water may not exceed 1,600 ppm (0.16 %). [ss. NR 439.04 and NR 405.08, Wis. Adm. Code] (2) The permittee shall operate the Cooling Tower in
accordance with the manufacturer’s recommendations [s. NR 405.08, Wis. Adm. Code] (3) The permittee shall operate t he cooling tower to prevent significant contribution to fog or icing on off

- site roadways and areas surrounding the facility. [s. NR 405.08, Wis. Adm. Code] (1) The permittee shall determine and record the following on a weekly basis or more frequently i f required: 13
(a) the concentration of Total Dissolved Solids (TDS) in the cooling water, in parts per million (ppm); (b) the cooling tower water circulation rate, gallons per minute, and; (c) the calculated average particulate matter emission rates,
for PM and PM 2.5 in pounds per hour. [s. NR 439.04, Wis. Adm. Code] (2) The permittee shall maintain on file: (a) the design loss specifications for the drift eliminators; (b) manufacturer’s recommended procedures for inspection and maintenance; (c) a des cription of the type of water treatment system in use in the cooling towers. The description is to include the average concentration and material safety data sheets, MSDS, for each water treatment additive. [ss. NR 439.04 and NR 468.30(4)(a), Wis. Adm. C ode]

G

. P141

– New cooling tower
2. Opacity (visible emissions)

a. Limitations: Best Available Control Technology (BACT):

10% opacity [s. NR 431.05, Wis. Adm. Code, s. NR 405.08, Wis. Adm. Code]

b. Compliance Demonstration: c. Test Methods, Re cordkeeping, and Monitoring:

(1) The permittee shall operate the Cooling Tower in
accordance with the manufacturer’s recommendations and
the malfunction prevention and abatement plan for the equipment associated with this process. [ s. NR 405.08, Wis.

Adm . Code ] (2) The permittee shall operate the cooling tower to prevent significant contribution to fog or icing on off

- site roadways and areas surrounding the facility. [ s. NR 405.08, Wis. Adm.

Code ] (1) The permittee shall maintain on file: (a) the desi gn loss specifications for the drift eliminators; (b) manufacturer’s recommended procedures for inspection and maintenance; (c) a description of the type of water treatment system in use in the cooling towers. The description is to include the

average c oncentration and material safety data sheets, MSDS, for each water treatment additive. [ss. NR 439.04 and NR 468.30(4)(a), Wis. Adm. Code]

13 More frequent monitoring may be required to maintain manufactures guarantees, or for compliance with other regulatory requirements such as WPDES permit. Calculations are based on Cooling Tower Emissions Quantification Using the Cooling Tower Institute Test Cod e ATC

- 40 and TDS concentration specific to the facility.FID No. 737227040
, Permit No. 10

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### H

. F125 & F133

- Biomass delivery trucks haul roads & Boiler ash haul roads

Pollutant: 1. Particulate Matter E missions (BACT).

a. Limitations: (1)The permittee shall pave the haul roads.
(2) Use of Wet dust suppression
[s. NR 405.08, Wis. Adm. Code, s. NR 431.05, Wis. Adm. Code, s. 285.65(3), Wis. Stats., s. 285.65(3), Wis. Stats.]

b. Compliance Demonstration : c. Test Methods, Recordkeeping, and Monitoring:

(1) All facility haul roads shall be paved. (2) The process shall be monitored in accordance with a Fugitive Dust Control Plan. The Department may request the permittee to review and amend the plan if necessary to maintain emissions in compliance with emission limits. [s. 285.65(3), Wis. Stats.]
(3) Whenever fugitive dust emissions are observed from the process, the permittee shall take corrective actions to prevent fugitive dust from becoming airborne. [s. 285.65(3), Wis. Stats (1) Reference Test Method for Particulate Matter Emissions: Whenever compliance emission testing is required, the appropriate US EPA Method 9 shall be used to demonstrate compliance or an alternate method approved in writing by the Department, shall be used. [s. NR 439.06(9)(a)1., Wis. Adm. Code]

(2) The permittee shall record the time when any corrective actions taken (including when taken) to prevent fugitive dust from becoming airborne (s. NR 439.04, Wis. Adm. Code)FID No. 737227040
, Permit No. 10

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I. F 126, S126

– Mid transfer tower (wood transfer from Domtar wood room to the CFB boiler)

1 . Opacity (visible emissions)

a. Limitations: Best Available Control Technology (BACT):

5 % opacity [s. NR 431.05, Wis. Adm. Code, s. NR 405.08, Wis. Adm. Code]

b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:
(1) Initial compliance emission tests for F 1 26 shall be
conducted within 180 days of startup of F126 in accordance with cond. I. ZZZ.4. of this permit [s. NR 439.07, Wis.
A dm. Code]

(2) ) All material transfer operations shall be conducted in an enclosed conveyor system (s. NR 405.08, Wis. Adm. Code)

(3 ) Whenever fugitive dust emissions are observed from the process, the permittee shall take corrective actions to
prevent fugitive dust from becoming airborne. [s. 285.65(3), Wis. Stats (1) Reference Test Method for Visible Emissions: Whenever compliance emission testing is required for

F 12 6 , US EPA Method 9 or Method 22 shall be used to demonstrate compliance or an altern ate method approved in writing by the Department, shall be used. [s. NR 439.06(9)(a)1., Wis. Adm. Code]FID No. 737227040
, Permit No. 10

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ZZZ. Conditions Applicable to the Entire Facility.

1. Biomass definitions.

a. Definition of biomass for:

(1) For Federal MACT requireme nts only: Biomass means but is not limited to, wood residue, and wood products ( e.g

. trees, tree stumps, tree limbs, bark, lumber, sawdust, sanderdust, chips, scraps, slabs, millings, and shavings); animal manure, including litter and other bedding mater ials; vegetative agricultural and silvicultural materials, such as logging residues (slash), nut and grain hulls and chaff ( e.g. almond, walnut, peanut, rice, and wheat), bagasse, orchard prunings, corn stalks, coffee bean hulls and grounds.

(2) For all other permit requirements: means a resource that derives energy from wood or plant material or residue,
clean solid wood waste and crops grown for use as a resource. Fuel sources may include the following and other qualifying clean biomass sources:

• log ging residue

• discarded woody material from primary manufacturing facilities such as paper mills, sawmills, or chip mills

• on

- site pulp & paper wastewater treatment plant residue

• leftover woody material from secondary manufacturers such as door, w indow, cabinet manufacturers

• woody biomass from municipality wood waste, tree services, and construction companies

• clean solid wood waste from discarded wood packaging such as pallets/crating and from construction and

demolition activities

• woody bi omass plantations, energy crops and agricultural residues. Biomass excludes edible portions of food crops, refuse derived fuel, treated wood, municipal solid waste, sewerage sludge, and animal waste.

(3) The definition of biomass in cond. ZZZ.1.a.(1) o f this permit does not allow the combustion of any of the materials excluded from being defined as biomass in cond. ZZZ.1.a.(2) of this permit.

(s. NR 405.08, Wis. Adm. Code and s. 285.65(13), Stats.)

b. Compliance Demonstration: c. Test Methods, Recordk eeping, and Monitoring:

2. Stack Parameters
a. Limitations: All stacks at the facility shall meet the parameters in subd. b. of this section (s. NR 405.08, Wis. Adm.
Code and

b. Compliance Demonstration c. Test Methods, Recordkeeping, and Monito ring:
(a) Boilers: (i) B01, Stack S01 : the height shall be at a minimum 265 feet above ground level and the inside diameter shall be no greater than 10 feet; (ii) B02, Stack S02 : : the height shall be at a minimum
180 above ground level and the insid e diameter shall be no greater than 9 feet; (b) Cooling Tower: (1) The permittee shall keep and maintain on site technical drawings, blueprints or equivalent records of the physical stack parameters. [s. NR 439.04(1)(d), Wis. Adm. Code]

Note: These requirements are included because the source was reviewed with these stack parameters and it was
determined that no increments or ambient air quality standards will be violated when constructed as proposed.FID No. 737227040
, Permit No. 10

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(i) P141, Stack S141: the height of each cell shall be
maintained at a minimum 65 feet above ground level and the inside diameter of each cell shall be no greater than 32 feet; (c) Materia l handling: (i) P121, S121: the height shall be maintained at a
minimum 110 feet above ground level and the inside diameter shall be no greater than 5 feet; (ii) (ii) P131, S131: the height shall be maintained at a
minimum 50 feet above ground level and the inside diameter shall be no greater than 1.33 feet; (i ii ) P132 A , S132 A : the height of the vent shall be
maintained at a minimum 64 feet above ground level and the inside diameter shall be no greater than 1 foot ; and (iv) P132B, S132B: the height of the vent shall be maintained at a minimum 20 feet above ground level and the inside diameter shall be no greater than 0. 4 2 feet. [s. NR 404. 04(3) & (8), and NR 404.05(3), Wis. Adm. Code, s. 285.65(3), Stats.]

(2) Except for S131, S132A, and S132B t he st acks may not be equipped with a rainhat or other device that may impede the upward velocity of the exhaust gasses. [s. NR 404. 04(3) & (8), and NR 404.05(3), Wis. Adm. Code, s. 285.65(3), Stats.]

3. Malfunction Prevention and Abatement Plan and Fugitive Dust Plan

a. Limitations:

(1) A malfunction prevention and abatement plan shall be prepared and followed for the p lant.

[s. NR 439.11, Wis. Adm. Code]

(2) All air pollution control equipment shall be operated and maintained in conformance with good engineering practices (i.e. operated and maintained according to manufacturer’s specifications and directions) to minimiz e the possibility for the exceedance of any emission limitations.

[s. NR 439.11(4), Wis. Adm. Code]

(3) The facility shall submit an amended plan to include all process and boilers included in this permit to the Wisconsin Department of Natural Resources, W est Central Region Air Management Program, Wausau Service Center for review. This submittal shall be made within 120 days of initial operation of boiler B01. The department may amend the plan if deemed necessary for malfunction prevention or for the reduc tion of excess emissions during malfunctions.

[s. NR 439.11(2), Wis. Adm. Code]FID No. 737227040
, Permit No. 10

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(4) The permittee shall submit a Fugitive Dust Plan to the D epartment for review at least 120 days prior to the startup of process P121, F122, F123, F 126 , P131 o r P132 (120 d ays prior to the startup of the first of these processes to be started up). T he Plan shall, at a minimum, in c l ude the following elements and precautions for limiting fugitive dust 14 emissions :

(a) Use, where possible, of water or chemicals for control of dust from construction operations; (b) Application of asphalt, water, suitable chemicals or plastic covering on dirt roads, material stockpiles and other surfaces which can create airborne dust, provided such application does not create a hydrocarbon, odor or water pollution problem; and (c) Covering or securing of materials likely to become airborne while being moved on public roads, railroads or navigable

waters. [s. NR 405.08, Wis. Adm. Code]

b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:

(1) The malfunction prevention and abatement plan shall be developed to prevent, detect and correct malfunctions or equipment failures which may cause any applicable emissions limitation to be violated or which may cause air pollution.

[s . NR 439.11(1), Wis. Adm. Code]

(2) This malfunction prevention and abatement plan shall
include installation, maintenance and routine calibration procedures for the process monitoring and control equipment instrumentation. This plan shall require an inst rumentation calibration at the frequency specified by the manufacturer, yearly or at a frequency based on good engineering practice as established by operational history, whichever is more frequent. Inspection and calibration shall also be conducted

whenev er instrumentation anomalies are noted.

[ss. NR 407.09(1)(c)1.c., NR 439.055(4) and s. NR
439.11, Wis. Adm. Code]

(3) The malfunction prevention and abatement plan shall require a copy of the operation and maintenance manual for the control equipment to b e maintained on site. The plan shall contain all of the elements in s. NR
439.11(1)(a)

- (h), Wis. Adm. Code.

[s. NR 439.11, Wis. Adm. Code] (1) The permittee shall maintain the following records: (a) A copy of the malfunction prevention and abatement plan ; and (b) any records required to be maintained under the malfunction prevention and abatement plan. (s. NR 439.04, Wis. Adm. Code)

14 The use of the term “fugitive dust” anywhere in this permit is not meant to imply that these emissions are considered fugitiv e emissions under ch. NR 405, Wis. Adm. Code.FID No. 737227040
, Permit No. 10

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4. Stack Testing and Fuel Sampling Requirements.

a. Limitations:

(1) If any required compliance emission test(s) cannot be conducted within the time frames specified in this permit, the permit holder may request and the Department may approve, in writing, an extension of time to conduct the test(s). Such an extension shall not exceed 90 calendar days.

[s. NR 439.07, Wis. Adm. Code]

(2) All testing shall be performed with the emissions unit operating at capacity or as close to capacity as practicable and in accordance with approved procedures. If operation at capacity is not feasible, the source shall operate at a capacity level which is approved by the Department in writing.

[s. NR 439.07(1), Wis. Adm. Code]

(3) The Department shall be informed at least 20 working days prior to any stack testing, so a Department representative can witness the testing. At the time of notific ation, a compliance emission test plan shall also be submitted to the Department for approval. When approved in writing, an equivalent test method may be substituted for the reference test method. The notification and test plan shall be submitted to the Wi sconsin Department of Natural Resources,

West Central Region Air Management Program, Wausau Service Center

.

[s. NR 439.07(2), Wis. Adm. Code]

(4) Conduct all sampling of liquid fossil fuels in accordance with s. NR 439.08(2), Wis. Adm. Code [s. NR 439.08( 2),
Wis. Adm. Code

(5) Use USEPA method 19 to convert measured concentration values to pounds/MMBTU values when needed (s. NR 405.08, Wis. Adm. Code and s. 285.65(13), Stats.)

(6) Unless otherwise approved by the Department in writing, all stack testing required for Boiler B01 shall be done using only biomass as the fuel and at least 95% of maximum boiler capacity (i.e. heat input minimum of 760 MMBTU/hour) (s. NR 405.08 and 10

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b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:

(1) Two copies of the report on any compliance emission tests shall be submitted to the Department for evaluation within 60 days following the completion of

tests.

[s. NR 439.07(9), Wis. Adm. Code] (1) The permittee shall maintain the followin g records: (a) a copy of all stack test results for test required under this permit; (b) any requests for an extension of time to perform any testing required under this permit, including the Department’s written response to such requests. (s. NR 439.04, W is. Adm. Code)

5. Compliance Reports/Records.

a. Limitations:

(1) Except as provided under ZZZ.7.a.( 1 ), upon issuance of the operation permit, the permittee shall submit periodicFID No. 737227040
, Permit No. 10

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monitoring reports.

[s. NR 407.09(1)(c)3., Wis. Adm. Code]

(2) Except a s provided under ZZZ.7.a.( 1 ), upon issuance of the operation permit, the permittee shall submit periodic certification of compliance.

[s. NR 407.09(4)(a)3., Wis. Adm. Code]

(3) The records required under this permit shall be retained for at least five (5) years and shall be made available to department personnel upon request during normal business hours.

[s. NR 439.04, s. NR 439.05, Wis. Adm. Code]

b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:

(1) The permittee shall submit a monitoring report which contains the results of monitoring or a summary of monitoring results required by this permit to the Department every six (6) months.

(a) The time periods to be addressed by the submittal January 1 to June 30 and July 1 to Decembe r 31.

(b) The report shall be submitted to the Wisconsin Department of Natural Resources, West Central Region Air Management Program, Wausau Service Center, within 45 days after the end of each reporting period.

(c) All deviations from and violations of ap plicable requirements shall be clearly identified in the submittal.

(d) Each submittal shall be certified by a responsible official as to the truth, accuracy and completeness of the report.

(e) The content of the submittal is described in item D. of

Part I I of the operation permit.

[ss. NR 407.09(1)(c)3. & NR 439.03(1)(b), Wis. Adm.
Code]

(2) The permittee shall submit an annual certification of compliance with the requirements of this permit to the Wisconsin Department of Natural Resources, West

Central Re gion Air Management Program, Wausau

Service Center and to Compliance Data

- Wisconsin, None Applicable.FID No. 737227040
, Permit No. 10

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Air and Radiation Division, US EPA, 77 W. Jackson Street, Chicago, IL 60604.

(a) The time period to be addressed by the report is January 1 to December 31 of the precedi ng year.

(b) The report shall be submitted to the Wisconsin Department of Natural Resources and the US EPA within 45 days after the end of each reporting period.

(c) The information included in the report shall comply with the requirements of Part II, Sect ion N of this permit.

(d) Each report shall be certified by a responsible official as to the truth, accuracy and completeness of the report.

[ss. NR 407.09(4)(a)3. & NR 439.03(1)(c), Wis. Adm. Code]

7. Construction Permit 10

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- 05 8 Transitional Language.

a. Limitations:

(1) Notifications. The permittee shall inform the Department of the following dates within 15 days of the date on which the activity actually occurs:

(a) The date construction commences on any new emission units ad dressed in Permit 10

- SDD

- 058.

(b) The date new emission unit becomes operational.

For purposes of this permit, “operational” shall be defined as the first time of any process related air contaminant is

emitted into the ambient air.

(2) For purposes of thi s permit only, “Initial operation” for Biomass fired boiler (Emission Unit B01) shall be defined as the time when the generator of the associated boiler is first synchronized with the electrical grid, and “initial operation” for the Natural Gas fired Boile r (Emission Unit B02) shall be defined as the time when the boiler first provides steam for it intended purpose.

[s. NR 439.03(1), Wis. Adm. Code (Permit 10

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(3) Construction Authorization Expiration. The Authorization to Construct, under Constru ction Permit 10

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- 058 expires 36 months after the date of issuance. Construction or modification and an initial operation period for equipment shakedown, testing and Department evaluation of operation to assure conformity with the permit

conditions is au thorized for each emissions unit covered in this permit. Please note that the sources covered by thisFID No. 737227040
, Permit No. 10

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permit are required to meet all emission limits and conditions contained in the permit at all times, including during the initial operation period. If 36 months is an insufficient time period for construction or modification, equipment shakedown, testing and Department evaluation of operation, the permit holder may request and the Department may approve in writing an extension of this permit. The conditions of the construction permit are permanent, unless revised, superseded or revoked.

[ss. 285.60(1)(a)2. and 285.66(1), Wis. Stats., and s. NR 406.12, Wis. Adm. Code (Permit 10

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(4) New Emission Units Once constructed and operating, all new processe s and boilers shall operate under the conditions in Section I. and II. of this construction permit 10

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.

[s. NR 439.03(1), Wis. Adm. Code (Permit 10

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(5) Completion of Operation Permit Application. The permittee shall update the permit appl ication if any changes occur which are not specified or described in the plans and specifications approved under construction permit 10

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.

[s. NR 407.04(1)(b), Wis. Adm. Code (Permit 10

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(6) Existing Domtar Pulp and Paper Mill’s Emission Un its. Prior to the date that any new emission units associated with the
Biomass Facility becomes operational, Domtar Paper Company LLC shall complete the following physical and operational
changes to the Pulp and Paper Mill (FID 737010450). These changes sh all be federally enforceable through a construction permit

under NR 406.

(a) Boilers B1 1 and B13, the hog

- fuel and Natural gas & distillate oil fired boilers , respectively, shall not be operated whenever any of the new emission units of the Biomass Fac ility are operating,.

(b) i. Boilers B10 and B12, Natural gas & distillate oil fired boiler shall not be operated whenever the Circulating

Fluidized Bed Boiler

– B01 of the Biomass Facility is operating.

ii. Boiler s B10 and B12 shall only combust natural gas and emissions unit B10 shall be limited to a firing rate of 60

MMBTU/hour whenever any emission units of the Biomass Facility other than the Circulating Fluidized Bed Boiler

– B01 are operating.

ii i

. The permittee shall maintain records to demonstrat e that the boiler and other process operation restrictions in cons. (a)
and (b) of this Section are met at all times the emission units of the Biomass Facility are operating.

(c) Emission Unit P44, Wood chip cyclone system shall not discharge through a s tack to the ambient air

(d) Emission Unit P56, Lime storage silo’s stack shall be discharge in a vertical direction at a height of 26.5 feet.

(e) Stack S90A, Pulper cyclone stack shall be discharge in a vertical direction at a height of 42 feet with an i nside

diameter of 3.3 feet at outlet.

(f) Stack S90B, Pulper vent shall be discharge in a vertical direction at a height of 26 feet with an inside diameter of 1.5FID No. 737227040
, Permit No. 10

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feet at outlet.

(g) Stack S90C, Shredder cyclone stack shall be discharge in a vertical dir ection at a height of 28 feet with an inside
diameter of 3.3 feet at outlet
[ss. 285.65(3)&(7), Stats.]

b. Compliance Demonstration: c. Test Methods, Recordkeeping, and Monitoring:

(1) Notifications. The permittee shall submit to the Department of Natura l Resources, West Central Region Air Management Program, Wausau Service Center in writing, within 15 days of the date the event, the following:

(a) The date construction commences on the any new

emission unit addressed in Permit 10

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(b) The date n ew emission unit becomes operational.

[s. NR 439.04(1)(d), Wis. Adm. Code (Permit 10

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(2) Submittal of Compliance Testing Information and
other updates. The permittee shall submit to the department any updates of the permit application. Updates are required if any changes that occur which are not specified or described in the plans and specifications dated March 24, 2010 thru October 4,

2012 . The updates shall be made within 60 days of the date of the change. Other information to be submitted

sh all include the notification requirements and stack

tests results

[s. NR 439.04(1)(d), Wis. Adm. Code (Permit 10

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(3) All submittals described in this permit shall be made in writing and include the name of the facility, the facility’s address, the construction permit number and a description of the affected emission unit(s).

[s. NR 439.04(1)(d), Wis. Adm. Code (Permit 10

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8. MACT fuel sampling and monitoring requirements

a. Limitations: (1) All fuel sampling and f uel monitoring used top demonstrate compliance with a MACT standard for boiler B01 shall be conducted in accordance with these requirements (s. 285.65(7)&(13), Stats.)

c. Test Methods, Recordkeeping, and Monitoring:

(1) Sampling for mercury shall be do ne in accordance with all of the following: (a) Collect fuel samples: i. Procedure in §63.7521(c) or ASTM D6323

– 98 (2003) (b) Composite fuel samples use Procedure in §63.7521(d) or equivalent. (c) Preparation composited fuel samples:
i. SW

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– 3050B (for solid samples)
ii. SW

– 846

– 3020A (for liquid samples); or
iii. ASTM D5198

– 92 (2003) (for biomass) or equivalent. (d) Determine heat content of the fuel by ASTM E711

– 87 (for biomass) (IBR, see §63.14(b)) or equivalent. (e) Determine moisture content of the fuel type:
i. ASTM D3173

– 03 (IBR, see §63.14(b));or
ii. ASTM E871

– 82 (1998) (IBR, see §63.14(b)) or equivalent. (f) Measure mercury concentration in fuel sample:
i. SW

– 846

– 7471A (for solid samples); or
ii. SW

– 846

– 7470A (for liquid samples) or equivalent

. (2) Sampling for chlorine shall be done in accordance with all of the following: (a) Collect fuel samples: i. Procedure in §63.7521(c); or
ii. ASTM D6323

– 98 (2003) (for biomass) (IBR, see §63.14(b)) or equivalent. (b) Composite fuel samples use the Proce dure in §63.7521(d) or equivalent. (c)Prepare composited fuel samples
i. SW

– 846

– 3050B (for solid samples);
ii. SW

– 846

– 3020A (for liquid samples); or
ii. ASTM D5198

– 92 (2003) (for biomass) (IBR, see §63.14(b)) or equivalent. (d) Determine heat content of the fuel type using ASTM
E711

– 87 (1996) (for biomass) (IBR, see §63.14(b)) or equivalent. (e) Determine moisture content of the fuel type:
i. ASTM D3173

– 03 (IBR, see §63.14(b)); or
ii. ASTM E871

– 82 (1998) or equivalent.
f. Measure chlorine concentration i n fuel:
i. SW

– 846

– 9250; or
ii. ASTM E776

– 87 (1996) (for biomass) None Applicable.FID No. 737227040
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