1 Subpart Db—Standards of Performance for Industrial-Commercial-Institutional Steam Generating Units §60.40b Applicability and delegation of authority. (a) The affected facility to which this subpart applies is each steam generating unit that commences construction, modification, or reconstruction after J une 19, 1984, and that has a heat input capacity from fuels combusted in the steam generating unit of great er than 29 megawatts (MW) (100 million British thermal units per hour (MMBtu/hr)). (b) Any affected facility meeting the applicability requirements under paragraph (a) of this section and commencing construction, modification, or reconstructi on after June 19, 1984, but on or before June 19, 1986, is subject to the following standards: (1) Coal-fired affected facilities having a heat input capacity between 29 and 73 MW (100 and 250 MMBtu/hr), inclusive, are subject to the part iculate matter (PM) and nitrogen oxides (NO X ) standards under this subpart. (2) Coal-fired affected facilities having a heat input capacity greater than 73 MW (250 MMBtu/hr) and meeting the applicability requirements under subpart D (Standards of performance for fossil-fuel-fired steam generators; §60.40) are subject to the PM and NO X standards under this subpart and to the sulfur dioxide (SO 2 ) standards under subpart D (§60.43). (3) Oil-fired affected facilities having a heat input capacity between 29 and 73 MW (100 and 250 MMBtu/hr), inclusive, are subject to the NO X standards under this subpart. (4) Oil-fired affected facilities having a heat input capacity greater than 73 MW (250 MMBtu/h r ) and meeting the applicability requirements under subpart D (Standards of performance for fossil-fuel-fired steam generators; §60.40) are also subject to the NO X standards under this subpart and the PM and SO 2 standards under subpart D (§60.42 and §60.43). (c) Affected facilities that also meet the applicability requirements under subpart J (Standards or subpart Ja of performance for petroleum refineries; §60.104) are this part are subject to the PM and NO X standards under this subpart and the SO 2 standards under subpart J (§60.104). or subpart Ja or this part, as applicable. (d) Affected facilities that also meet the applicability requirements under subpart E (Standards of performance for incinerators; §60.50) are subject to the NO X and PM standards under this subpart. (e) Steam generating units meeting the applicabi lity requirements under subpart Da (Standards of performance for electric utility steam generating units; §60.40Da) are not subject to this subpart. (f) Any change to an existing steam generating unit for the sole purpose of combusting gases containing total reduced sulfur (TRS) as defined under §60.281 is not considered a modification under §60.14 and the steam generating unit is no t subject to this subpart. (g) In delegating implementation and enforcement authority to a State under section 111(c) of the Clean Air Act, the following authorities shall be retained by the Administrator and not transferred to a State. (1) Section 60.44b(f). (2) Section 60.44b(g). (3) Section 60.49b(a)(4). Comment [CF1]: Add subpart Ja exemption.2 (h) Any affected facility that meets the applicability requirements and is subject to subpart Ea, subpart Eb, subpart AAAA, or subpart AAAA CCCC of this part is not covered by subject to this subpart. (i) Heat Affected facilities (i.e. heat recovery steam generators ) that are associated with combined cycle gas stationary combustion turbines and that meet the applicabil ity requirements of subpart KKKK of this part are not subject to this subpart. This subpart will continue to apply to all other affected facilities (i.e. heat recovery steam generators with duct burners) that are capable of combusting more than 29 MW (100 MMBtu/hr) heat input of fossil fuel. If the affected facility (i.e. heat recovery steam generator ) is subject to this subpart, only emissions resulting from combustion of fuels in the steam generating unit are subject to this subpart. (The gas stationary combustion turbine emissions are subject to subpart GG or KKKK, as applicable, of this part.) (j) Any affected facility meeting the applicability requirements under paragraph (a) of this section and commencing construction, modification, or reconstruc tion after June 19, 1986 is not subject to subpart D (Standards of Performance for Fossil-Fuel-Fired Steam Generators, §60.40). (k) Any affected facility that meets the applicability requirements and is subject to an EPA approved State or Federal section 111(d)/129 plan implementing subpart Cb or subpart BBBB of this part is not covered by this subpart. (l) Affected facilities that also meet the applicability requirements under subpart BB (Standards of Performance for Kraft Pulp Mills) are subject to the SO 2 and NO X standards under this subpart and the PM standards under subpart BB. (m) Temporary boilers are not subject to this subpart. §60.41b Definitions. As used in this subpart, all terms not defined herein shall have the meaning given them in the Clean Air Act and in subpart A of this part. Annual capacity factor means the ratio between the actual heat input to a steam generating unit from the fuels listed in §60.42b(a), §60.43b(a), or §60.44b(a), as applicable, during a calendar year and the potential heat input to the steam generating unit had it been operated for 8,760 hours during a calendar year at the maximum steady state design heat input cap acity. In the case of steam generating units that are rented or leased, the actual heat input shall be determined based on the combined heat input from all operations of the affected facility in a calendar year. Byproduct/waste means any liquid or gaseous substance pr oduced at chemical manufacturing plants, petroleum refineries, or pulp and paper mills (except natural gas, distillate oil, or residual oil) and combusted in a steam generating unit for heat recove ry or for disposal. Gase ous substances with carbon dioxide (CO 2 ) levels greater than 50 percent or carbon monoxide levels greater than 10 percent are not byproduct/waste for the purpose of this subpart. Chemical manufacturing plants mean industrial plants that are classified by the Department of Commerce under Standard Industrial Classification (SIC) Code 28.

Coal means all solid fuels classified as anthracite , bituminous, subbituminous, or lignite by the American Society of Testing and Materials in ASTM D388 (incorporated by reference, see §60.17), coal refuse, and petroleum coke. Coal-derived synthetic fuels, including but not limited to solvent refined coal, gasified coal not meeting the definition of natu ral gas, coal-oil mixtures, coke oven gas, and coalwater mixtures, are also included in this de finition for the purposes of this subpart. Comment [CF2]: Exempt owner/operators of CISWI facilities from subpart Db

Comment [CF3]: Exempting black liquor

recovery boilers from the PM limit. The recent round of amendments brought them under the PM limit since they have an ESP to control PM and burn low sulfur oil. The subpart BB limit is similar to the

pre 2005 standard.

Comment [CF4]: Exempt temporary boilers burning fuels with low emissions.3 Coal refuse means any byproduct of coal mining or coal cl eaning operations with an ash content greater than 50 percent, by weight, and a heating value less than 13,900 kJ/kg (6,000 Btu/lb) on a dry basis. Cogeneration , also known as combined heat and power, means a facility that simultaneously produces both electric (or mechanical) and useful ther mal energy from the same primary energy source. Coke oven gas means the volatile constituents generated in the gaseous exhaust during the carbonization of bituminous coal to form coke. Combined cycle system means a system in which a separate source, such as a gas turbine, internal combustion engine, kiln, etc., provides e xhaust gas to a steam generating unit. Conventional technology means wet flue gas desulfurization (FGD) technology, dry FGD technology, atmospheric fluidized bed combustion technol ogy, and oil hydrodesulfurization technology.

Distillate oil means fuel oils that contain 0.05 weight pe rcent nitrogen or less and comply with the specifications for fuel oil numbers 1 and 2, as defi ned by the American Society of Testing and Materials in ASTM D396 (incorporated by reference, see §60.17 ) or ), diesel fuel oil numbers 1 and 2, as defined by the American Society for Testing and Material s in ASTM D975 (incorporated by reference, see §60.17 ). ), kerosine, as defined by the American Soci ety of Testing and Materials in ASTM D3699 (incorporated by reference, see §60.17), biodiesel as defined by the American Society of Testing and Materials in ASTM D6751 (incorporated by reference, see §60.17), or biodiesel blends as defined by the American Society of Testing and Materials in AS TM D7467 (incorporated by reference, see §60.17). Dry flue gas desulfurization technology means a SO 2 control system that is located downstream of the steam generating unit and re moves sulfur oxides from the combusti on gases of the st eam generating unit by contacting the combustion gases with an alkaline reag ent and water, whether introduced separately or as a premixed slurry or solution and forming a dr y powder material. This definition includes devices where the dry powder material is subsequently conver ted to another form. Alkaline slurries or solutions used in dry flue gas desulfuriz ation technology include but are not limited to lime and sodium.

Duct burner means a device that combusts fuel and that is placed in the exhaust duct from another source, such as a stationary gas turbine, internal combustion engine, kiln, etc., to allow the firing of additional fuel to heat the exhaust gases before the exhaust gases enter a steam generating unit. Emerging technology means any SO 2 control system that is not defi ned as a conventional technology under this section, and for which the owner or operator of the facility has applied to the Administrator and received approval to operate as an emerging technology under §60.49b(a)(4). Federally enforceable means all limitations and conditions that are enforceable by the Administrator, including the requirements of 40 CFR parts 60 and 61, requirements within any applicable State Implementation Plan, and any permit requirement s established under 40 CFR 52.21 or under 40 CFR 51.18 and 51.24. Fluidized bed combustion technology means combustion of fuel in a bed or series of beds (including but not limited to bubbling bed units and circulating be d units) of limestone aggregate (or other sorbent materials) in which these materials are forced up ward by the flow of combustion air and the gaseous products of combustion. Fuel pretreatment means a process that removes a portion of the sulfur in a fuel before combustion of the fuel in a steam generating unit. Full capacity means operation of the steam generating unit at 90 percent or more of the maximum steady-state design heat input capacity. Comment [CF5]: Expand definitions to include other similar fuels. Need to amend 60.17 as well.4 Gaseous fuel means any fuel that is a gas at ISO conditions. This includes, but is not limited to, natural gas and gasified coal (including coke oven gas). Gross output means the gross useful work performed by the steam generated. For units generating only electricity, the gross useful work performed is the gr oss electrical output from the turbine/generator set. For cogeneration units, the gross useful work performed is the gross electrical or mechanical output plus 75 percent of the useful thermal output measured rela tive to ISO conditions that is not used to generate additional electrical or mechan ical output or to enhance the performance of the unit ( i.e. , steam delivered to an industrial process). Heat input means heat derived from combustion of fuel in a steam generating unit and does not include the heat derived from preheated combustion air, recirc ulated flue gases, or exhaust gases from other sources, such as gas turbines, internal combustion engines, kilns, etc.

Heat release rate means the steam generating unit design heat in put capacity (in MW or Btu/hr) divided by the furnace volume (in cubic mete rs or cubic feet); the furnace vol ume is that volume bounded by the front furnace wall where the burner is located, the furnace side waterwall, and extending to the level just below or in front of the first row of convection pass tubes. Heat transfer medium means any material that is used to tran sfer heat from one point to another point. High heat release rate means a heat releas e rate greater than 730,000 J/sec-m 3 (70,000 Btu/hr-ft 3 ).

ISO Conditions means a temperature of 288 Kelvin, a relative humidity of 60 percent, and a pressure of 101.3 kilopascals. Lignite means a type of coal classified as lignite A or lignite B by the American Society of Testing and Materials in ASTM D388 (incorporated by reference, see §60.17).

Low heat release rate means a heat release rate of 730,000 J/sec-m 3 (70,000 Btu/hr-ft 3 ) or less. Mass-feed stoker steam generating unit means a steam generating unit where solid fuel is introduced directly into a retort or is fed directly onto a grate where it is combusted. Maximum heat input capacity means the ability of a steam generating unit to combust a stated maximum amount of fuel on a steady state basi s, as determined by the physical design and characteristics of the steam generating unit. Municipal-type solid waste means refuse, more than 50 percent of which is waste consisting of a mixture of paper, wood, yard wastes, food wastes, plastics, le ather, rubber, and other combustible materials, and noncombustible materials such as glass and rock. Natural gas means: (1) A naturally occurring mixture of hydrocarbon and nonhydrocarbon gases found in geologic formations beneath the earth's surface, of wh ich the principal constituent is methane; or (2) Liquefied petroleum gas, as defined by the Am erican Society for Testing and Materials in ASTM D1835 (incorporated by reference, see §60.17); or (3) A mixture of hydrocarbons that maintains a gase ous state at ISO conditions. Additionally, natural gas must either be composed of at least 70 percent methane by volume or have a gross calorific value between 34 and 43 megajoules (MJ) per dry standard cubic meter (910 and 1,150 Btu per dry standard cubic foot).5 Noncontinental area means the State of Hawaii, the Virgin Islands, Guam, American Samoa, the Commonwealth of Puerto Rico, or the Northern Mariana Islands.

Oil means crude oil or petroleum or a liquid fuel derived from crude oil or petroleum, including distillate and residual oil. Petroleum refinery means industrial plants as classified by the Department of Commerce under Standard Industrial Classification (SIC) Code 29. Potential sulfur dioxide emission rate means the theoretical SO 2 emissions (nanograms per joule (ng/J) or lb/MMBtu heat input) that would result from com busting fuel in an uncleaned state and without using emission control systems. For gasified coal or o il that is desulfurized prior to combustion, the Potential sulfur dioxide emission rate is the theoretical SO 2 emissions (ng/J or lb/MMBtu heat input) that would result from combusting fuel in a cleaned state without using any post co mbustion emission control systems.

Process heater means a device that is primarily used to heat a material to initiate or promote a chemical reaction in which the material participates as a reactant or catalyst. Pulp and paper mills means industrial plants that are classifi ed by the Department of Commerce under North American Industry Classification System (NAICS ) Code 322 or Standard Industrial Classification (SIC) Code 26. Pulverized coal-fired steam generating unit means a steam generating unit in which pulverized coal is introduced into an air stream that carries the coal to the combustion chamber of the steam generating unit where it is fired in suspension. This includes both conventional pulverized coal-fired and micropulverized coal-fired steam generating units.

Residual oil means crude oil, fuel oil numbers 1 and 2 that have a nitrogen content greater than 0.05 weight percent, and all fuel oil numbers 4, 5 and 6, as defined by the American Society of Testing and Materials in ASTM D396 (incorporated by reference, see §60.17). Spreader stoker steam generating unit means a steam generating unit in which solid fuel is introduced to the combustion zone by a mechanism that throws the fuel onto a grate from above. Combustion takes place both in suspension and on the grate. Steam generating unit means a device that combusts any fuel or byproduct/waste and produces steam or heats water or heats any heat transfer medium. Th is term includes any municipal-type solid waste incinerator with a heat recovery steam generating unit or any steam ge nerating unit that combusts fuel and is part of a cogeneration system or a combined cycle system. This term does not include process heaters as they are defined in this subpart. Steam generating unit operating day means a 24-hour period between 12:00 midnight and the following midnight during which any fuel is combusted at any ti me in the steam generating unit. It is not necessary for fuel to be combusted continuously for the entire 24-hour period. Temporary boiler means a steam generating unit that combusts natural gas and/or distillate oil with a potential SO 2 emissions rate no greater than 26 ng/J (0.060 lb/MMBtu), and the unit is designed to, and is capable of, being carried or moved from one loca tion to another by means of, for example, wheels, skids, carrying handles, dollies, trailers, or platform s. A steam generating unit is not a temporary boiler if any one of the following conditions exists: (1) The equipment is attached to a foundation. Comment [CF6]: Need definition for new exemption.6 (2) The steam generating unit or a replacement rema ins at a location for more than 180 consecutive days. Any temporary boiler that replaces a temporar y boiler at a location and performs the same or similar function will be included in calculating the consecutive time period. (3) The equipment is located at a seasonal facility and operates during the full annual operating period of the seasonal facility, remains at the facility for at least 2 years, and operates at that facility for at least 3 months each year. (4) The equipment is moved from one location to anothe r in an attempt to circumvent the residence time requirements of this definition. Very low sulfur oil means for units constructed, reconstructed, or modified on or before February 28, 2005, oil that contains no more than 0.5 weight percent sulfur or that, when combusted without SO 2 emission control, has a SO 2 emission rate equal to or less than 215 ng/J (0.5 lb/MMBtu) heat input. For units constructed, reconstructed, or modifi ed after February 28, 2005 and not located in a noncontinental area, very low sulfur oil means oil that contains no more than 0.30 weight percent sulfur or that, when combusted without SO 2 emission control, has a SO 2 emission rate equal to or less than 140 ng/J (0.32 lb/MMBtu) heat input. For units constructed, reconstructed, or modified after February 28, 2005 and located in a noncontinental area, very low sulfur oil means oil that contains no more than 0.5 weight percent sulfur or that, when combusted without SO 2 emission control, has a SO 2 emission rate equal to or less than 215 ng/J (0.50 lb/MMBtu) heat input. Wet flue gas desulfurization technology means a SO 2 control system that is located downstream of the steam generating unit and re moves sulfur oxides from the combusti on gases of the st eam generating unit by contacting the combustion gas with an alkaline slur ry or solution and forming a liquid material. This definition applies to devices where the aqueous liquid material product of this contact is subsequently converted to other forms. Alkaline reagents used in wet flue gas desulfurization technology include, but are not limited to, lime, limestone, and sodium. Wet scrubber system means any emission control device that mixe s an aqueous stream or slurry with the exhaust gases from a steam generating unit to control emissions of PM or SO 2 . Wood means wood, wood residue, bark, or any derivative fuel or residue thereof, in any form, including, but not limited to, sawdust, sand erdust, wood chips, scra ps, slabs, millings, shavings, and processed pellets made from wood or other forest residues. §60.42b Standard for sulfur dioxide (SO 2 ). (a) Except as provided in paragraphs (b), (c), (d), or (j) of this section, on and after the date on which the performance test is completed or required to be co mpleted under §60.8, whichever comes first, no owner or operator of an affected facility that commenced construction, reconstruction, or modification on or before February 28, 2005, that combusts coal or oil shall cause to be discharged into the atmosphere any gases that contain SO 2 in excess of 87 ng/J (0.20 lb/MMBtu) or 10 percent (0.10) of the potential SO 2 emission rate (90 percent reduction) and the emis sion limit determined according to the following formula:

Where:

E s = SO 2 emission limit, in ng/J or lb/MMBtu heat input;7 K a = 520 ng/J (or 1.2 lb/MMBtu);

K b = 340 ng/J (or 0.80 lb/MMBtu);

H a = Heat input from the combustion of coal, in J (MMBtu); and

H b = Heat input from the combustion of oil, in J (MMBtu). For facilities complying with the percent reduction sta ndard, only the heat input supplied to the affected facility from the combustion of coal and oil is counted in this paragraph. No credit is provided for the heat input to the affected facility from the combustion of natural gas, wood, municipal-type solid waste, or other fuels or heat derived from exhaust gases fr om other sources, such as gas turbines, internal combustion engines, kilns, etc. (b) On and after the date on which the performance te st is completed or required to be completed under §60.8, whichever date comes first, no owner or operator of an affected facility that commenced construction, reconstruction, or modification on or be fore February 28, 2005, that combusts coal refuse alone in a fluidized bed combusti on steam generating unit shall caus e to be discharged into the atmosphere any gases that contain SO 2 in excess of 87 ng/J (0.20 lb/MMBtu) or 20 percent (0.20) of the potential SO 2 emission rate (80 percent reduction) and 520 ng/J (1.2 lb/MMBtu) heat input. If coal or oil is fired with coal refuse, the affected facility is subject to paragraph (a) or (d) of this section, as applicable. For facilities complying with the percent reduction standard, only the heat input supplied to the affected facility from the combustion of coal and oil is counted in this paragraph. No credit isprovided for the heat input to the affected facility from the combustion of natural gas, wood, municipaltype solid waste, or other fuels or heat derive d from exhaust gases from ot her sources, such as gas turbines, internal combustion engines, kilns, etc. (c) On and after the date on which the performance te st is completed or is required to be completed under §60.8, whichever comes first, no owner or operator of an affected facility that combusts coal or oil, either alone or in combinat ion with any other fuel, and that uses an emerging technology for the control of SO 2 emissions, shall cause to be discharged into the atmosphere any gases that contain SO 2 in excess of 50 percent of the potential SO 2 emission rate (50 percent reduction) and that contain SO 2 in excess of the emission limit determined according to the following formula:

Where:

E s = SO2 emission limit, in ng/J or lb/MM Btu heat input;

K c = 260 ng/J (or 0.60 lb/MMBtu);

K d = 170 ng/J (or 0.40 lb/MMBtu);

H c = Heat input from the combustion of coal, in J (MMBtu); and

H d = Heat input from the combustion of oil, in J (MMBtu). For facilities complying with the percent reduction sta ndard, only the heat input supplied to the affected facility from the combustion of coal and oil is counted in this paragraph. No credit is provided for the heat input to the affected facility from the combustion of natural gas, wood, municipal-type solid waste, or other fuels, or from the heat input derived fr om exhaust gases from othe r sources, such as gas turbines, internal combustion engines, kilns, etc.8 (d) On and after the date on which the performance te st is completed or required to be completed under §60.8, whichever comes first, no owner or operator of an affected facility that commenced construction, reconstruction, or modification on or before February 28, 2005 and listed in paragraphs (d)(1), (2), (3), or (4) of this section shall cause to be discharg ed into the atmosphere any gases that contain SO 2 in excess of 520 ng/J (1.2 lb/MMBtu) heat input if the affected facility combusts coal, or 215 ng/J (0.5 lb/MMBtu) heat input if the affected facility combusts oil other than very low sulfur oil. Percent reduction requirements are not applicable to affected facilities under paragraphs (d)(1), (2), (3) or (4) of this section. For facilities complying with paragraphs (d)(1), (2), or (3) of this section, only the heat input supplied to the affected facility from the combus tion of coal and oil is counted in this paragraph. No credit is provided for the heat input to the affected facility from the combustion of natural gas, wood, municipal-type solid waste, or other fuels or heat de rived from exhaust gases from other sources, such as gas turbines, internal combustion engines, kilns, etc. (1) Affected facilities that have an annual capacity factor for coal and oil of 30 percent (0.30) or less and are subject to a federally enforceable permit limiting the operation of the affected facility to an annual capacity factor for coal and oil of 30 percent (0.30) or less; (2) Affected facilities located in a noncontinental area; or (3) Affected facilities combusting coal or oil, alone or in combination with any fuel, in a duct burner as part of a combined cycle system where 30 percen t (0.30) or less of the heat entering the steam generating unit is from combustion of coal and oil in the duct burner and 70 percent (0.70) or more of the heat entering the steam generating unit is from the exhaust gases entering the duct burner; or (4) The affected facility burns coke oven gas alone or in combination with natural gas or very low sulfur distillate oil. (e) Except as provided in paragraph (f) of this se ction, compliance with the emission limits, fuel oil sulfur limits, and/or percent reduction requirement s under this section are determined on a 30-day rolling average basis. (f) Except as provided in paragraph (j)(2) of this sec tion, compliance with the emission limits or fuel oil sulfur limits under this section is determined on a 24-hour average basis for affected facilities that (1) have a federally enforceable permit limiting the annual capacity factor for oil to 10 percent or less, (2) combust only very low sulfur oil, and (3) do not combust any other fuel. (g) Except as provided in paragraph (i) of this section and §60.45b(a), the SO 2 emission limits and percent reduction requirements under this section apply at all times, including periods of startup, shutdown, and malfunction. (h) Reductions in the potential SO 2 emission rate through fuel pretreatment are not credited toward the percent reduction requirement under pa ragraph (c) of this section unless: (1) Fuel pretreatment results in a 50 percent or greater reduction in potential SO 2 emissions and (2) Emissions from the pretreated fuel (without combustion or post

- combustion SO 2 control) are equal to or less than the emission limits specified in paragraph (c) of this section. (h) [RESERVED] (i) An affected facility subject to paragraph (a), (b), or (c) of this section may combust very low sulfur oil or natural gas when the SO 2 control system is not being operated because of malfunction or maintenance of the SO 2 control system. Comment [CF7]: Remove restriction on fuel pretreatement9 (j) Percent reduction requirements are not applicable to affected facilities combusting only very low sulfur oil. The owner or operator of an affected fa cility combusting very low sulfur oil shall demonstrate that the oil meets the definition of very low sulfur oil by: (1) Following the performance testing procedures as described in §60.45b(c) or §60.45b(d) , and following the monitoring procedures as described in §60.47b(a) or §60.47b(b) to determine SO 2 emission rate or fuel oil sulfur content; or (2) maintaining fuel records as described in §60.49b(r). (k)(1) Except as provided in paragraphs (k)(2), (k)(3), and (k)(4) of this section, on and after the date on which the initial performance test is completed or is required to be completed under §60.8, whichever date comes first, no owner or operator of an affected facility that commences construction, reconstruction, or modification after February 28, 2005, and that combusts coal, oil, natural gas, a mixture of these fuels, or a mixture of these fuels w ith any other fuels shall cause to be discharged into the atmosphere any gases that contain SO 2 in excess of 87 ng/J (0.20 lb/MMBtu) heat input or 8 percent (0.08) of the potential SO 2 emission rate (92 percent reduction) and 520 ng/J (1.2 lb/MMBtu) heat input. For facilities complying with the percent reduction st andard and paragraph (k)(3) of this section, only the heat input supplied to the affected facility from the combustion of coal and oil is counted in paragraph (k) of this section. No credit is provided for the heat input to the affected facility from the combustion of natural gas, wood, municipal-type solid waste, or other fuels or heat derived from exhaust gases from other sources, such as gas turbines, internal combustion engines, kilns, etc. (2) Units firing only very low sulfur oil, gaseous fuel, a mixture of these fuels, or a mixture of these fuels with any other fuels with a potential SO 2 emission rate of 140 ng/J (0.32 lb/MMBtu) heat input or less are exempt from the SO 2 emissions limit in paragraph (k)(1) of this section. (3) Units that are located in a noncontinental area and that combust coal, oil, or natural gas shall not discharge any gases that contain SO 2 in excess of 520 ng/J (1.2 lb/MMBtu) heat input if the affected facility combusts coal, or 215 ng/J (0 .50 lb/MMBtu) heat input if the affected facility combusts oil or natural gas. (4) As an alternative to meeting the requirements under paragraph (k)(1) of this section, modified facilities that combust coal or a mixture of coal with other fuels shall not cause to be discharged into the atmosphere any gases that contain SO 2 in excess of 87 ng/J (0.20 lb/MMBtu) heat input or 10 percent (0.10) of the potential SO 2 emission rate (90 percent reduction) and 520 ng/J (1.2 lb/MMBtu) heat input. §60.43b Standard for particulate matter (PM). (a) On and after the date on which the initial perf ormance test is completed or is required to be completed under §60.8, whichever comes first, no owner or operator of an affected facility that commenced construction, reconstruction, or modificati on on or before February 28, 2005 that combusts coal or combusts mixtures of coal with other fuels, shall cause to be discharged into the atmosphere from that affected facility any gases that cont ain PM in excess of the following emission limits: (1) 22 ng/J (0.051 lb/MMBtu) heat input, (i) If the affected facility combusts only coal, or (ii) If the affected facility combusts coal and other fuels and has an annual capacity factor for the other fuels of 10 percent (0.10) or less. (2) 43 ng/J (0.10 lb/MMBtu) heat input if the affected facility combusts coal and other fuels and has an annual capacity factor for the other fuels greater than 10 percent (0.10) and is subject to a federally enforceable requirement limiting operation of the affect ed facility to an annual capacity factor greater than 10 percent (0.10) for fuels other than coal. (3) 86 ng/J (0.20 lb/MMBtu) heat input if the affected facility combusts coal or coal and other fuels and10 (i) Has an annual capacity factor for coal or co al and other fuels of 30 percent (0.30) or less, (ii) Has a maximum heat input capacity of 73 MW (250 MMBtu/hr) or less, (iii) Has a federally enforceable requirement limiting operation of the affected facility to an annual capacity factor of 30 percent (0.30) or less for coal or coal and other solid fuels, and (iv) Construction of the affected facility commenced after June 19, 1984, and before November 25, 1986. (4) An affected facility burning coke oven gas alone or in combination with other fuels not subject to a PM standard under §60.43b and not using a post- combustion technology (except a wet scrubber) for reducing PM or SO 2 emissions is not subject to the PM limits under §60.43b(a). (b) On and after the date on which the performance te st is completed or required to be completed under §60.8, whichever comes first, no owner or operator of an affected facility that commenced construction, reconstruction, or modification on or before February 28, 2005, and that combusts oil (or mixtures of oil with other fuels) and uses a conventi onal or emerging technology to reduce SO 2 emissions shall cause to be discharged into the atmosphere from that affected facility any gases that contain PM in excess of 43 ng/J (0.10 lb/MMBtu) heat input. (c) On and after the date on which the initial performance test is completed or is required to be completed under §60.8, whichever comes first, no owner or operator of an affected facility that commenced construction, reconstruction, or modification on or before February 28, 2005, and that combusts wood, or wood with other fuels, except co al, shall cause to be discharged from that affected facility any gases that contain PM in excess of the following emission limits: (1) 43 ng/J (0.10 lb/MMBtu) heat input if the affected facility has an annual capacity factor greater than 30 percent (0.30) for wood. (2) 86 ng/J (0.20 lb/MMBtu) heat input if (i) The affected facility has an annual capacity factor of 30 percent (0.30) or less for wood; (ii) Is subject to a federally enforceable requirement limiting operation of the affected facility to an annual capacity factor of 30 percent (0.30) or less for wood; and (iii) Has a maximum heat input capacity of 73 MW (250 MMBtu/hr) or less. (d) On and after the date on which the initial perform ance test is completed or is required to be completed under §60.8, whichever date comes first, no owner or operator of an affected facility that combusts municipal-type solid waste or mixtures of municipal-type solid waste with other fuels, shall cause to be discharged into the atmosphere from th at affected facility any gases that contain PM in excess of the following emission limits: (1) 43 ng/J (0.10 lb/MMBtu) heat input; (i) If the affected facility combusts only municipal-type solid waste; or (ii) If the affected facility combusts municipal-type solid waste and other fuels and has an annual capacity factor for the other fuels of 10 percent (0.10) or less. (2) 86 ng/J (0.20 lb/MMBtu) heat input if the affected facility combusts municipal-type solid waste or municipal-type solid waste and other fuels; and (i) Has an annual capacity factor for municipal-type solid waste and other fuels of 30 percent (0.30) or less;11 (ii) Has a maximum heat input capacity of 73 MW (250 MMBtu/hr) or less; (iii) Has a federally enforceable requirement limiting operation of the affected facility to an annual capacity factor of 30 percent (0.30) or less for muni cipal-type solid waste, or municipal-type solid waste and other fuels; and (iv) Construction of the affected facility commenced after June 19, 1984, but on or before November 25, 1986. (e) For the purposes of this section, the annual capa city factor is determined by dividing the actual heat input to the steam generating unit during the cale ndar year from the combustion of coal, wood, or municipal-type solid waste, and other fuels, as ap plicable, by the potential heat input to the steam generating unit if the steam generating unit had been operated for 8,760 hours at the maximum heat input capacity. (f) On and after the date on which the initial performance test is completed or is required to be completed under §60.8, whichever date comes first, no owner or operator of an affected facility that can combust combusts coal, oil, wood, or mixtures of these fuels with any other fuels shall cause to be discharged into the atmosphere any gases that exhibit greater than 20 percent opacity (6-minute average), except for one 6-minute period per hour of not more than 27 percent opacity. Owners and operators An owner or operator of an affected facility that elect elects to install, calibrate, maintain, and operate a continuous emissions monitoring system (CEMS) for measuring PM emissions according to the requirements of this subpart and are subject is subject to a federally enforceable PM limit of 0.030 lb/MMBtu or less are is exempt from the opacity standard specified in this paragraph. (g) The PM and opacity standards ap ply at all times, except during pe riods of startup, shutdown, or malfunction. (h)(1) Except as provided in paragraphs (h)(2), (h)(3 ), (h)(4), (h)(5), and (h)(6) of this section, on and after the date on which the initial performance test is completed or is required to be completed under §60.8, whichever date comes first, no owner or operator of an affected facility that commenced construction, reconstruction, or modification after Fe bruary 28, 2005, and that combusts coal, oil, wood, a mixture of these fuels, or a mixture of these fuels w ith any other fuels shall cause to be discharged into the atmosphere from that affected facility any gases that contain PM in excess of 13 ng/J (0.030 lb/MMBtu) heat input, (2) As an alternative to meeting the requirements of paragraph (h)(1) of this section, the owner or operator of an affected facility for which modification commenced after February 28, 2005, may elect to meet the requirements of this paragraph. On and after the date on which the initial performance test is completed or required to be completed under §60.8, no owner or operator of an affected facility that commences modification after February 28, 2005 shall cause to be discharged into the atmosphere from that affected facility any gases that contain PM in excess of both: (i) 22 ng/J (0.051 lb/MMBtu) heat input derived from the combustion of coal, oil, wood, a mixture of these fuels, or a mixture of these fuels with any other fuels; and (ii) 0.2 percent of the combustion concentration (99.8 percent reduction) when combusting coal, oil, wood, a mixture of these fuels, or a mixt ure of these fuels with any other fuels. (3) On and after the date on which the initial perform ance test is completed or is required to be completed under §60.8, whichever date comes first, no owner or operator of an affected facility that commences modification after February 28, 2005, and that combusts over 30 percent wood (by heat input) on an annual basis and has a maximum heat input capacity of 73 MW (250 MMBtu/h) or less Comment [CF8]: Clarify opacity does not apply when burning natural gas12 shall cause to be discharged into the atmosphere from that affected facility any gases that contain PM in excess of 43 ng/J (0.10 lb/MMBtu) heat input. (4) On and after the date on which the initial perform ance test is completed or is required to be completed under §60.8, whichever date comes first, no owner or operator of an affected facility that commences modification after February 28, 2005, and that combusts over 30 percent wood (by heat input) on an annual basis and has a maximum heat input capacity greater than 73 MW (250 MMBtu/h) shall cause to be discharged into the atmosphere from that affected facility any gases that contain PM in excess of 37 ng/J (0.085 lb/MMBtu) heat input. (5) On and after the date on which the initial perform ance test is completed or is required to be completed under §60.8, whichever date comes first, an owner or operator of an affected facility not located in a noncontinental area that commences c onstruction, reconstruction, or modification after February 28, 2005, and that combusts only oil that contains no more than 0.30 weight percent sulfur, coke oven gas, a mixture of these fuels, or either fu el (or a mixture of these fuels) in combination with other fuels not subject to a PM standard in §60.4 3b and not using a post-combustion technology (except a wet scrubber) to reduce SO 2 or PM emissions is not subject to the PM limits in (h)(1) of this section. (6) On and after the date on which the initial perform ance test is completed or is required to be completed under §60.8, whichever date comes first, an owner or operator of an affected facility located in a noncontinental area that commences construction, reconstruction, or modification after February 28, 2005, and that combusts only oil that contains no more than 0.5 weight percent sulfur, coke oven gas, a mixture of these fuels, or either fuel (or a mixture of these fuels) in combination with other fuels not subject to a PM standard in §60.43b and not using a post-combustion technology (except a wet scrubber) to reduce SO 2 or PM emissions is not subject to the PM limits in (h)(1) of this section. §60.44b Standard for nitrogen oxides (NO X ). (a) Except as provided under paragrap hs (k) and (l) of this section, on and after the date on which the initial performance test is completed or is require d to be completed under §60.8, whichever date comes first, no owner or operator of an affected facility that is subject to the provisions of this section and that combusts only coal, oil, or natural gas shall cause to be discharged into the atmosphere from that affected facility any gases that contain NO X (expressed as NO 2 ) in excess of the following emission limits:

Fuel/steam generating unit type N itrogen oxide emission limits (expressed as NO 2 ) heat input

ng/J lb/ MMBTu MMB

tu (1) Natural gas and distillate oil, except (4):

(i) Low heat release rate 43 0.10 (ii) High heat release rate 86 0.20

(2) Residual oil:

(i) Low heat release rate 130 0.30 (ii) High heat release rate 170 0.4013 (3) Coal:

(i) Mass-feed stoker 210 0.50 (ii) Spreader stoker and fluidized bed combustion 260 0.60

(iii) Pulverized coal 300 0.70 (iv) Lignite, except (v) 260 0.60 (v) Lignite mined in North Dakota, South Dakota, or Montana and combusted in a slag tap furnace 340 0.80

(vi) Coal-derived synthetic fuels 210 0.50 (4) Duct burner used in a combined cycle system: (i) Natural gas and distillate oil 86 0.20

(ii) Residual oil 170 0.40 (b) Except as provided under paragraphs (k) and (l) of this section, on and after the date on which the initial performance test is completed or is require d to be completed under §60.8, whichever date comes first, no owner or operator of an affected faci lity that simultaneously combusts mixtures of only coal, oil, or natural gas shall cause to be discharged into the atmosphere from that affected facility any gases that contain NO X in excess of a limit determined by the use of the following formula:

Where:

E n = NO X emission limit (expressed as NO 2 ), ng/J (lb/MMBtu);

EL go = Appropriate emission limit from paragraph (a)(1) for combustion of natural gas or distillate oil, ng/J (lb/MMBtu);

H go = Heat input from combustion of natura l gas or distillate oil, J (MMBtu);

EL ro = Appropriate emission limit from paragraph (a)(2) for combustion of residual oil, ng/J (lb/MMBtu);

H ro = Heat input from combustion of residual oil, J (MMBtu);

EL c = Appropriate emission limit from paragraph (a)(3 ) for combustion of coal, ng/J (lb/MMBtu); and

H c = Heat input from combustion of coal, J (MMBtu). (c) Except as provided under paragraph ( d) and ( l) of this section, on and after the date on which the initial performance test is completed or is require d to be completed under §60.8, whichever date comes first, no owner or operator of an affected facility that simultaneously combusts coal or , oil, or a mixture of these fuels with natural gas

, (or any combination of the three),, and wood, municipal

- type solid waste, or any other fuel shall cause to be discharged into the atmosphere any gases that contain NO X in NO X in excess of the emission limit for the coal or , oil, or mixtures of these fuels with natural gas (or any combination of the three), combusted in the affected facility, as determined pursuant to paragraph (a) or Comment [CF9]: Clarify applicability14 (b) of this section , unless the . This standard does not apply to an affected facility has an annual capacity factor for coal or oil, or mixture of these fuels with natural gas of 10 percent (0.10) or less and that is subject to and in compliance with a federally enforceable requirement that limits operation of the affected facility to an annual capacity factor of 10 percent (0.10) or less for coal, oil, or a mixture of these fuels with natural gas

. (or any combination of the three). (d) On and after the date on which the initial performance test is completed or is required to be completed under §60.8, whichever date comes first, no owner or operator of an affected facility that simultaneously combusts natural gas and/or distillate oil with a potential SO 2 emissions rate of 26 ng/J (0.060 lb/MMBtu) or less with wood, municipal-type solid waste, or other solid fuel, except coal, shall cause to be discharged into the atmosphere from that affected facility any gases that contain NO X in NO X in excess of 130 ng/J (0.30 lb/MMBtu) heat input unless the affected facility has an annual capacity factor for natural gas , distillate oil, or a mixture of these fuels of 10 percent (0.10) or less and is subject to a federally enforceable requirement that limits operation of the affected facility to an annual capacity factor of 10 percent (0.10) or less for natural gas , distillate oil, or a mixture of these fuels

. (e) Except as provided under paragr aph (l) of this section, on and after the date on which the initial performance test is completed or is required to be completed under §60.8, whichever date comes first, no owner or operator of an affected facility that simultaneously combusts only coal, oil, or natural gas with byproduct/waste shall cause to be discharged into the atmosphere any gases that contain NO X in NO X in excess of the emission limit determined by the following formula unless the affected facility has an annual capacity factor for coal, oil, and natural gas of 10 percent (0.10) or less and is subject to a federally enforceable re quirement that limits operation of the affected facility to an annual capacity factor of 10 percent (0.10) or less:

Where:

E n = NO X emission limit (expressed as NO 2 ), ng/J (lb/MMBtu);

EL go = Appropriate emission limit from paragraph (a)(1) for combustion of natural gas or distillate oil, ng/J (lb/MMBtu);

H go = Heat input from combustion of natural gas, di stillate oil and gaseous byproduct/waste, J (MMBtu);

EL ro = Appropriate emission limit from paragraph (a)(2) for combustion of residual oil and/or byproduct/waste, ng/J (lb/MMBtu);

H ro = Heat input from combustion of residual oil, J (MMBtu);

EL c = Appropriate emission limit from paragraph (a)(3 ) for combustion of coal, ng/J (lb/MMBtu); and

H c = Heat input from combustion of coal, J (MMBtu). (f) Any owner or operator of an affected facility that combusts byproduct/waste with either natural gas or oil may petition the Administrator within 180 days of the initial startup of the affected facility to establish a NO X emission limit that shall apply specifically to that affected facility when the byproduct/waste is combusted. The petition shall include sufficient and appropriate data, as determined by the Administrator, such as NO X emissions from the affected facility, waste composition (including nitrogen content), and combustion conditions to allow the Administrator to confirm that the affected Comment [CF10]: Clarification of the requirements.

Comment [CF11]: Add low sulfur distillate as alternative to NG to increase flexibility for owners/operators of wood

‐ fired boilers. Low sulfur distillate combusts clean enough to qualify for low capacity factor exemption.

Comment [CF12]: Clarify applicability15 facility is unable to comply with the emission limits in paragraph (e) of this section and to determine the appropriate emission limit for the affected facility. (1) Any owner or operator of an affected fa cility petitioning for a facility-specific NO X emission limit under this section shall: (i) Demonstrate compliance with the emission limits for natural gas and distillate oil in paragraph (a)(1) of this section or for residual oil in paragraph (a)(2) or (l)(1) of this section, as appropriate, by conducting a 30-day performance test as provided in §60.46b(e). During the performance test only natural gas, distillate oil, or residual oil shall be combusted in the affected facility; and (ii) Demonstrate that the affected facility is unable to comply with the emission limits for natural gas and distillate oil in paragraph (a)(1) of this section or for residual oil in paragraph (a)(2) or (l)(1) of this section, as appropriate, when gaseous or liquid bypr oduct/waste is combusted in the affected facility under the same conditions and using the same technol ogical system of emission reduction applied when demonstrating compliance under paragraph (f)(1)(i) of this section. (2) The NO X emission limits for natural gas or distillate o il in paragraph (a)(1) of this section or for residual oil in paragraph (a)(2) or (l)( 1) of this section, as appropriate, shall be applicable to the affected facility until and unless the petition is approved by th e Administrator. If the petition is approved by the Administrator, a facility-specific NO X emission limit will be established at the NO X emission level achievable when the affected facility is combusting oil or natural gas and byproduct/waste in a manner that the Administrator determines to be consistent with minimizing NO X emissions. In lieu of amending this subpart, a letter will be sent to the facility describing the facility-specific NO X limit. The facility shall use the compliance procedures detailed in the letter and make the letter available to the public. If the Administrator determines it is appropriate, the conditions and requirements of the letter can be reviewed and changed at any point. (g) Any owner or operator of an affected facility that combusts hazardous waste (as defined by 40 CFR part 261 or 40 CFR part 761) with natural gas or oil may petition the Administrator within 180 days of the initial startup of the affected facility for a waiver from compliance with the NO X emission limit that applies specifically to that affected facility. The petition must include sufficient and appropriate data, as determined by the Administrator, on NO X emissions from the affected facility, waste destruction efficiencies, waste composition (inc luding nitrogen content), the quantity of specific wastes to be combusted and combustion conditions to allow the Admini strator to determine if the affected facility is able to comply with the NO X emission limits required by this sectio n. The owner or operator of the affected facility shall demonstrate that when hazardous waste is combusted in the affected facility, thermal destruction efficiency requirements for haza rdous waste specified in an applicable federally enforceable requirement prec lude compliance with the NO X emission limits of this section. The NO X emission limits for natural gas or distillate oil in paragraph (a)(1) of this section or for residual oil in paragraph (a)(2) or (l)(1) of this section, as appropr iate, are applicable to the affected facility until and unless the petition is approved by the Administrator. (See 40 CFR 761.70 for regulations applicable to the incineration of materials containing polychlorin ated biphenyls (PCB's).) In lieu of amending this subpart, a letter will be sent to the facility describing the facility-specific NO X limit. The facility shall use the compliance procedures detailed in the letter and make the letter available to the public. If the Administrator determines it is appropriate, the cond itions and requirements of the letter can be reviewed and changed at any point. (h) For purposes of paragraph (i) of this section, the NO X standards under this section apply at all times including periods of startup, shutdown, or malfunction.16 (i) Except as provided under paragraph (j) of this section, compliance with the emission limits under this section is determined on a 30-day rolling average basis. (j) Compliance with the emission limits under this section is determined on a 24-hour average basis for the initial performance test and on a 3-hour averag e basis for subsequent performance tests for any affected facilities that: (1) Combust, alone or in combination, only natural ga s, distillate oil, or residual oil with a nitrogen content of 0.30 weight percent or less; (2) Have a combined annual capacity factor of 10 pe rcent or less for natural gas, distillate oil, and residual oil with a nitrogen content of 0.30 weight percent or less; and (3) Are subject to a federally enforceable requirement limiting operation of the affected facility to the firing of natural gas, distillate oil, and/or residual oil with a nitrogen content of 0.30 weight percent or less and limiting operation of the affected facility to a combined annual capacity factor of 10 percent or less for natural gas, distillate oil, and residual oil wi th a nitrogen content of 0.30 weight percent or less. (k) Affected facilities that meet the criteria described in paragraphs (j)(1), (2), and (3) of this section, and that have a heat input capacity of 73 MW (250 MMBtu/hr) or less, are not subject to the NO X emission limits under this section. (l) On and after the date on which the initial performance test is completed or is required to be completed under §60.8, whichever date comes first, no owner or operator of an affected facility that commenced construction or reconstruction after July 9, 1997 shall cause to be discharged into the atmosphere from that affected facility any gases that contain NO X (expressed as NO 2 ) in excess of the following limits: (1) If 86 ng/J (0.20 lb/MMBtu) heat input if the affected facility combusts coal, oil, or natural gas , a mixture (or any combination of these fuels, or a mixture of these fuels the three), alone or with any other fuels : A limit of 86 ng/J (0.20 lb/MMBtu) heat input unless the . The affected facility has an annual capacity factor for coal, oil, and natural gas of 10 percent (0.10) or less and is not subject to this limit if it is subject to and in compliance with a federally enforceable requirement that limits operation of the facility to an annual capacity factor of 10 percent (0.10) or less for coal, oil, and natural gas ; (or any combination of the three); or (2) If the affected facility has a low heat release rate and combusts natural gas or distillate oil in excess of 30 percent of the heat input on a 30-day rolling average from the combustion of all fuels, a limit determined by use of the following formula:

Where:

E n = NO X emission limit, (lb/MMBtu);

H go = 30-day heat input from combustion of natural gas or distillate oil; and

H r = 30-day heat input from co mbustion of any other fuel. (3) After February 27, 2006, units where more than 10 percent of total annual output is electrical or mechanical may comply with an optional limit of 270 ng/J (2.1 lb/MWh) gross energy output, based on a 30-day rolling average. Units complying with this output-based limit must demonstrate compliance Comment [CF13]: Clarification of rule language17 according to the procedures of §60.48Da(i) of subpa rt Da of this part, and must monitor emissions according to §60.49Da(c), (k), through (n) of subpart Da of this part. §60.45b Compliance and performance test meth ods and procedures for sulfur dioxide. (a) The SO 2 emission standards in §60.42b apply at all times. Facilities burning coke oven gas alone or in combination with any other gaseous fuels or distillate oil are allowed to exceed the limit 30 operating days per calendar year for SO 2 control system maintenance. (b) In conducting the performance tests required under §60.8, the owner or operator shall use the methods and procedures in appendix A (including fuel certification and sampling) of this part or the methods and procedures as specified in this section, except as provided in §60.8(b). Section 60.8(f) does not apply to this section. The 30-day notice required in §60.8(d) applies only to the initial performance test unless otherwise specified by the Administrator. (c) The owner or operator of an affected facility shall conduct performance tests to determine compliance with the percent of potential SO 2 emission rate (% P s ) and the SO 2 emission rate (E s ) pursuant to §60.42b following the procedures listed below, exce pt as provided under paragraph (d) and (k) of this section. (1) The initial performance test shall be conducte d over 30 consecutive operating days of the steam generating unit. Compliance with the SO 2 standards shall be determined using a 30-day average. The first operating day included in the initial performance test shall be scheduled within 30 days after achieving the maximum production rate at which the affected facility will be operated, but not later than 180 days after initial startup of the facility. (2) If only coal, only oil, or a mixture of coal and oil is combusted, the following procedures are used: (i) The procedures in Method 19 of appendix A–7 of this part are used to determine the hourly SO 2 emission rate (E ho ) and the 30-day average emission rate (E ao ). The hourly averages used to compute the 30-day averages are obtained from the CEMS of §60.47b(a) or (b). (ii) The percent of potential SO 2 emission rate (%P s ) emitted to the atmosphere is computed using the following formula:

Where:

%P s = Potential SO 2 emission rate, percent;

%R g = SO 2 removal efficiency of the control device as determined by Method 19 of appendix A of this part, in percent; and

%R f = SO 2 removal efficiency of fuel pretreatment as determined by Method 19 of appendix A of this part, in percent. (3) If coal or oil is combusted with other fuels, the same procedures required in paragraph (c)(2) of this section are used, except as provided in the following: (i) An adjusted hourly SO 2 emission rate (E ho o ) is used in Equation 19–19 of Method 19 of appendix A of this part to compute an adjust ed 30-day average emission rate (E ao o ). The Eho° is computed using the following formula:18 Where:

E ho o = Adjusted hourly SO 2 emission rate, ng/J (lb/MMBtu);

E ho = Hourly SO 2 emission rate, ng/J (lb/MMBtu);

E w = SO 2 concentration in fuels other than coal and oil combusted in the affected facility, as determined by the fuel sampling and analysis procedures in Met hod 19 of appendix A of this part, ng/J (lb/MMBtu). The value E w for each fuel lot is used for each hourly average during the time that the lot is being combusted; and

X k = Fraction of total heat input from fuel combusti on derived from coal, oil, or coal and oil, as determined by applicable procedures in Method 19 of appendix A of this part. (ii) To compute the percent of potential SO 2 emission rate (%P s ), an adjusted %R g (%R g o ) is computed from the adjusted E ao o from paragraph (b)(3)(i) of this section and an adjusted average SO 2 inlet rate (E ai o ) using the following formula:

To compute E ai o , an adjusted hourly SO 2 inlet rate (E hi o ) is used. The E hi o is computed using the following formula:

Where:

E hi o = Adjusted hourly SO 2 inlet rate, ng/J (lb/MMBtu); and

E hi = Hourly SO 2 inlet rate, ng/J (lb/MMBtu). (4) The owner or operator of an affected facility subj ect to paragraph (c)(3) of this section does not have to measure parameters E w or X k if the owner or operator elects to assume that X k = 1.0. Owners or operators of affected facilities who assume X k = 1.0 shall: (i) Determine %P s following the procedures in paragraph (c)(2) of this section; and (ii) Sulfur dioxide emissions (E s ) are considered to be in compliance with SO 2 emission limits under §60.42b. (5) The owner or operator of an affected facility that qualifies under the provisions of §60.42b(d) does not have to measure parameters E w or X k in paragraph (c)(3) of this section if the owner or operator of the affected facility elects to measure SO 2 emission rates of the coal or oil following the fuel sampling and analysis procedures in Method 19 of appendix A–7 of this part. (d) Except as provided in paragraph (j) of this section, the owner or operator of an affected facility that combusts only very low sulfur oil, natural gas, or a mixture of these fuels, has an annual capacity factor19 for oil of 10 percent (0.10) or less, and is subj ect to a federally enforceable requirement limiting operation of the affected facility to an annual capacity factor for oil of 10 percent (0.10) or less shall: (1) Conduct the initial performance test over 24 c onsecutive steam generating unit operating hours at full load; (2) Determine compliance with the standards after the initial performance test based on the arithmetic average of the hourly emissions data during each steam generating unit operating day if a CEMS is used, or based on a daily average if Method 6B of appe ndix A of this part or fuel sampling and analysis procedures under Method 19 of appendix A of this part are used. (e) The owner or operator of an affected facility subject to §60.42b(d)(1) shall demonstrate the maximum design capacity of the steam generating unit by operating the facility at maximum capacity for 24 hours. This demonstration will be made dur ing the initial performance test and a subsequent demonstration may be requested at any other time. If the 24-hour average firing rate for the affected facility is less than the maximum design capacity provi ded by the manufacturer of the affected facility, the 24-hour average firing rate shall be used to determ ine the capacity utilizatio n rate for the affected facility, otherwise the maximum design capacity provided by the manufacturer is used. (f) For the initial performance test required under §60.8, compliance with the SO 2 emission limits and percent reduction requirements unde r §60.42b is based on the average emission rates and the average percent reduction for SO 2 for the first 30 consecutive steam gene rating unit operating days, except as provided under paragraph (d) of this section. The initial performance test is the only test for which at least 30 days prior notice is required unless othe rwise specified by the Administrator. The initial performance test is to be scheduled so that th e first steam generating unit operating day of the 30 successive steam generating unit operating days is completed within 30 days after achieving the maximum production rate at which the affected facility will be operated, but not later than 180 days after initial startup of the facility. The boiler load during the 30-day period does not have to be the maximum design load, but must be representative of future operating conditions and include at least one 24-hour period at full load. (g) After the initial performance test re quired under §60.8, compliance with the SO 2 emission limits and percent reduction requirements unde r §60.42b is based on the average emission rates and the average percent reduction for SO 2 for 30 successive steam generating unit operating days, except as provided under paragraph (d). A separate performance test is completed at the end of each steam generating unit operating day after the initial performance test, a nd a new 30-day average emission rate and percent reduction for SO 2 are calculated to show compliance with the standard. (h) Except as provided under paragraph (i) of this section, the owner or operator of an affected facility shall use all valid SO 2 emissions data in calculating %P s and E ho under paragraph (c), of this section whether or not the minimum emissions data re quirements under §60.46b are achieved. All valid emissions data, including valid SO 2 emission data collected during pe riods of startup, shutdown and malfunction, shall be used in calculating %P s and E ho pursuant to paragraph (c) of this section. (i) During periods of malfunction or maintenance of the SO 2 control systems when oil is combusted as provided under §60.42b(i), emission data are not used to calculate %P s or E s under §60.42b(a), (b) or (c), however, the emissions data are used to determine compliance with the emission limit under §60.42b(i). (j) The owner or operator of an affected facility that only combusts very low sulfur oil, natural gas, or a mixture of these fuels with any other fuels not subject to an SO 2 standard is not subject to the compliance and performance testing requirements of this section if the owner or operator obtains fuel receipts as described in §60.49b(r).20 (k) The owner or operator of an affected facility seeking to demonstrate compliance in §§60.42b(d)(4), 60.42b(j), 60.42b(k)(2), and 60.42b(k)(3) (when not burning coal) shall follow the applicable procedures in §60.49b(r). §60.46b Compliance and performance test method s and procedures for particulate matter and nitrogen oxides. (a) The PM emission standards and opacity limits unde r §60.43b apply at all ti mes except during periods of startup, shutdown, or malfunction. The NO X emission standards under §60.44b apply at all times. (b) Compliance with the PM emission standards under §60.43b shall be determined through performance testing as described in paragraph (d) of this section, exce pt as provided in paragraph (i) of this section. (c) Compliance with the NO X emission standards under §60.44b shall be determined through performance testing under paragraph (e) or (f), or under paragraphs (g) and (h) of this section, as applicable. (d) To determine compliance with the PM emission limits and opac ity limits under §60.43b, the owner or operator of an affected facility shall conduct an initial performance test as required under §60.8, and shall conduct subsequent performance tests as re quested by the Administrator, using the following procedures and reference methods: (1) Method 3A or 3B of appendix A–2 of this part is used for gas analysis when applying Method 5 of appendix A–3 of this part or Method 17 of appendix A–6 of this part. (2) Method 5, 5B, or 17 of appendix A of this part sh all be used to measure the concentration of PM as follows: (i) Method 5 of appendix A of this part shall be used at affected facilities without wet flue gas desulfurization (FGD) systems; and (ii) Method 17 of appendix A–6 of this part may be used at facilities with or without wet scrubber systems provided the stack gas temperature does not exceed a temperature of 160 °C (320 °F). The procedures of sections 8.1 and 11.1 of Method 5B of appendix A–3 of this part may be used in Method 17 of appendix A–6 of this part only if it is us ed after a wet FGD system. Do not use Method 17 of appendix A–6 of this part after wet FGD systems if the effluent is saturated or laden with water droplets. (iii) Method 5B of appendix A of this part is to be used only after wet FGD systems. (3) Method 1 of appendix A of this part is used to select the sampling site and the number of traverse sampling points. The sampling time for each run is at least 120 minutes and the minimum sampling volume is 1.7 dscm (60 dscf) except that smaller sampling times or volumes may be approved by the Administrator when necessitated by pr ocess variables or other factors. (4) For Method 5 of appendix A of this part, the temperature of the sample gas in the probe and filter holder is monitored and is main tained at 160±14 °C (320±25 °F). (5) For determination of PM emissions, the oxygen (O 2 ) or CO 2 sample is obtained simultaneously with each run of Method 5, 5B, or 17 of appendix A of this part by traversing the duct at the same sampling location. (6) For each run using Method 5, 5B, or 17 of appendi x A of this part, the emission rate expressed in ng/J heat input is determined using: (i) The O 2 or CO 2 measurements and PM measurements obtained under this section;21 (ii) The dry basis F factor; and (iii) The dry basis emission rate calculation proce dure contained in Method 19 of appendix A of this part. (7) Method 9 of appendix A of this part is used for determining the opacity of stack emissions. (e) To determine compliance with the emission limits for NO X required under §60.44b, the owner or operator of an affected facility shall conduct the performance test as required under §60.8 using the continuous system for monitoring NO X under §60.48(b). (1) For the initial compliance test, NO X from the steam generating unit ar e monitored for 30 successive steam generating unit operating days and the 30-da y average emission rate is used to determine compliance with the NO X emission standards under §60.44b. The 30-day average emission rate is calculated as the average of all hourly emissions data recorded by the monitoring system during the 30- day test period. (2) Following the date on which the initial performance test is completed or is required to be completed in §60.8, whichever date comes first, the owner or ope rator of an affected facility which combusts coal (except as specified under §60.46b(e)(4)) or which combusts residual oil having a nitrogen content greater than 0.30 weight percent shall determine compliance with the NO X emission standards in §60.44b on a continuous basis through the use of a 30-day rolling average emission rate. A new 30-day rolling average emission rate is calculated for each steam generating unit operating day as the average of all of the hourly NO X emission data for the preceding 30 steam generating unit operating days. (3) Following the date on which the initial performance test is completed or is required to be completed under §60.8, whichever date comes first, the owner or operator of an affected facility that has a heat input capacity greater than 73 MW (250 MMBtu/hr) and that combusts natural gas, distillate oil, or residual oil having a nitrogen content of 0.30 weight percent or less shall determine compliance with the NO X standards under §60.44b on a continuous basis through the use of a 30-day rolling average emission rate. A new 30-day rolling average emission rate is calculated each steam generating unit operating day as the average of all of the hourly NO X emission data for the preced ing 30 steam generating unit operating days. (4) Following the date on which the initial performance test is completed or required to be completed under §60.8, whichever date comes first, the owner or operator of an affected facility that has a heat input capacity of 73 MW (250 MMBtu/hr) or less and that combusts natural gas, distillate oil, gasified coal, or residual oil having a nitrogen content of 0.30 weight percent or less shall upon request determine compliance with the NO X standards in §60.44b through the use of a 30-day performance test. During periods when performanc e tests are not requested, NO X emissions data collected pursuant to §60.48b(g)(1) or §60.48b(g)(2) are used to calculate a 30-day rolling average emission rate on a daily basis and used to prepare excess emission reports, but will not be used to determine compliance with the NO X emission standards. A new 30-day rolling average em ission rate is calculated each steam generating unit operating day as the average of all of the hourly NO X emission data for the preceding 30 steam generating unit operating days. (5) If the owner or operator of an affected facility that combusts residual oil does not sample and analyze the residual oil for nitrogen content, as specifie d in §60.49b(e), the requirements of §60.48b(g)(1) apply and the provisions of §60.48b(g)(2) are inapplicable.22 (f) To determine compliance with the emissions limits for NO X required by §60.44b(a)(4) or §60.44b(l) for duct burners used in combined cycle systems, e ither of the procedures described in paragraph (f)(1) or (2) of this section may be used: (1) The owner or operator of an affected facility shall conduct the performance test required under §60.8 as follows: (i) The emissions rate (E) of NO X shall be computed using Equation 1 in this section:

Where:

E = Emissions rate of NO X from the duct burner, ng/ J (lb/MMBtu) heat input;

E sg = Combined effluent emissions rate, in ng/J (lb/MM Btu) heat input using appropriate F factor as described in Method 19 of a ppendix A of this part;

H g = Heat input rate to the combustion turbine, in J/hr (MMBtu/hr);

H b = Heat input rate to the duct burner, in J/hr (MMBtu/hr); and

E g = Emissions rate from the combustion turbine, in ng/J (lb/MMBtu) heat input calculated using appropriate F factor as described in Method 19 of appendix A of this part. (ii) Method 7E of appendix A of this part shall be used to determine the NO X concentrations. Method 3A or 3B of appendix A of this part shall be used to determine O 2 concentration. (iii) The owner or operator shall identify and demons trate to the Administrator's satisfaction suitable methods to determine the average hourly heat input rate to the combustion turbine and the average hourly heat input rate to the affected duct burner. (iv) Compliance with the emissions limits under §60. 44b(a)(4) or §60.44b(l) is determined by the threerun average (nominal 1-hour runs) for the ini tial and subsequent performance tests; or (2) The owner or operator of an affected facility may elect to determine compliance on a 30-day rolling average basis by using the CEMS specified under §60.48b for measuring NO X and O 2 and meet the requirements of §60.48b. The sampling site shall be lo cated at the outlet from the steam generating unit. The NO X emissions rate at the outlet from the steam generating unit shall constitute the NO X emissions rate from the duct burner of the combined cycle system. (g) The owner or operator of an affected facility described in §60.44b(j) or §60.44b(k) shall demonstrate the maximum heat input capacity of the steam ge nerating unit by operating the facility at maximum capacity for 24 hours. The owner or operator of an affected facility shall determine the maximum heat input capacity using the heat loss method or the heat input method described in sections 5 and 7.3 of the ASME Power Test Codes 4.1 (incorporated by reference, see §60.17). This demonstration of maximum heat input capacity shall be made during the initial performance test for affected facilities that meet the criteria of §60.44b(j). It shall be made within 60 days after achieving the maximum production rate at which the affected facility will be operated, but not later than 180 days after initial start-up of each facility, for affected facilities meeting the criteria of §60.44b(k). Subsequent demonstrations may be required by the Administrator at any other time. If th is demonstration indicates that the maximum heat input capacity of the affected facility is less than that stated by the manufacturer of the affected facility, the maximum heat input capacity determined during th is demonstration shall be used to determine the23 capacity utilization rate for the affected facility. Otherwise, the maximum heat input capacity provided by the manufacturer is used. (h) The owner or operator of an affected facility de scribed in §60.44b(j) that has a heat input capacity greater than 73 MW (250 MMBtu/hr) shall: (1) Conduct an initial performance test as required under §60.8 over a minimum of 24 consecutive steam generating unit operating hours at maximum heat input capacity to demonstrate compliance with the NO X emission standards under §60.44b using Method 7, 7A , 7E of appendix A of this part, or other approved reference methods; and (2) Conduct subsequent performance tests once pe r calendar year or every 400 hours of operation (whichever comes first) to de monstrate compliance with the NO X emission standards under §60.44b over a minimum of 3 consecutive steam generating unit operating hours at maximum heat input capacity using Method 7, 7A, 7E of appendix A of th is part, or other approved reference methods. (i) The owner or operator of an affected facility seek ing to demonstrate compliance with the PM limit in paragraphs §60.43b(a)(4) or §60.43b(h)(5) shall follow the applicable procedures in §60.49b(r). (j) In place of PM testing with Method 5 or 5B of appendix A–3 of this part, or Method 17 of appendix A–6 of this part, an owner or operator may elect to install, calibrate, maintain, and operate a CEMS for monitoring PM emissions discharged to the atmosphere and record the output of the system. The owner or operator of an affected facility who elects to continuously monitor PM emissions instead of conducting performance testing using Method 5 or 5B of appendix A–3 of this part or Method 17 of appendix A–6 of this part shall comply with the requirements specified in paragraphs (j)(1) through (j)(14) of this section. (1) Notify the Administrator one month before starting use of the system. (2) Notify the Administrator one month before stopping use of the system. (3) The monitor shall be installed, evaluated, a nd operated in accordance with §60.13 of subpart A of this part. (4) The initial performance evaluation shall be completed no later than 180 days after the date of initial startup of the affected facility, as specified under §60.8 of subpart A of this part or within 180 days of notification to the Administrator of use of the CEMS if the owner or operator was previously determining compliance by Method 5, 5B, or 17 of appe ndix A of this part performance tests, whichever is later. (5) The owner or operator of an affected facility shall conduct an initial performance test for PM emissions as required under §60.8 of subpart A of this part. Compliance with the PM emission limit shall be determined by using the CEMS specified in paragraph (j) of this section to measure PM and calculating a 24-hour block arithmetic average emi ssion concentration using EPA Reference Method 19 of appendix A of this part, section 4.1. (6) Compliance with the PM emission limit shall be determined based on the 24-hour daily (block) average of the hourly arithmetic average emi ssion concentrations using CEMS outlet data. (7) At a minimum, valid CEMS hourly averages shall be obtained as specified in paragraphs (j)(7)(i) of this section for 75 percent of the total operating hours per 30-day rolling average. (i) At least two data points per hour shall be us ed to calculate each 1-hour arithmetic average. (ii) [Reserved]24 (8) The 1-hour arithmetic averages required under paragr aph (j)(7) of this section shall be expressed in ng/J or lb/MMBtu heat input and shall be used to calculate the boiler opera ting day daily arithmetic average emission concentrations. The 1-hour arithmetic averages shall be calculated using the data points required under §60.13(e)(2) of subpart A of this part. (9) All valid CEMS data shall be used in calculating average emission concentrations even if the minimum CEMS data requirements of paragraph (j)(7) of this section are not met. (10) The CEMS shall be operated according to Perfor mance Specification 11 in appendix B of this part. (11) During the correlation testing runs of the CEMS required by Performance Specification 11 in appendix B of this part, PM and O 2 (or CO 2 ) data shall be collected concurrently (or within a 30-to 60- minute period) by both the continuous emission m onitors and performance tests conducted using the following test methods. (i) For PM, Method 5 or 5B of appendix A–3 of this part or Method 17 of appendix A–6 of this part shall be used; and (ii) For O 2 (or CO 2 ), Method 3A or 3B of appendix A–2 of this part, as applicable shall be used. (12) Quarterly accuracy determinatio ns and daily calibration drift tests shall be performed in accordance with procedure 2 in appendix F of this part. Relativ e Response Audit's must be performed annually and Response Correlation Audits must be performed every 3 years. (13) When PM emissions data are not obtained be cause of CEMS breakdowns, repairs, calibration checks, and zero and span adjustments, emission s data shall be obtained by using other monitoring systems as approved by the Administrator or EPA Reference Method 19 of appendix A of this part to provide, as necessary, valid emissions data for a mi nimum of 75 percent of total operating hours per 30- day rolling average. (14) After July 1, 2011, within 90 days af ter completing a correlation testing run, the owner or operator of an affected facility shall either successfully ente r the test data into EPA's WebFIRE data base located

at http://cfpub.epa.gov/oarweb/index.cfm?action=fire.main or mail a copy to: United States Environmental Protection Agency; Energy Strategi es Group; 109 TW Alexander DR; Mail Code: D243

– 01; RTP, NC 27711. (14) As of January 1, 2012 and within 90 days afte r the date of completing each performance test, as defined in §60.8, conducted to demonstrate complian ce with this subpart, you must submit relative accuracy test audit (i.e., reference method) data and performance test (i.e., compliance test) data, except opacity data, electronically to EPA’s Central Data Exchange (CDX) by using the Electronic Reporting Tool (ERT) (see http://www.epa.gov/ttn/chief/ert/e rt tool.html/) or other compatible electronic spreadsheet. Only data collected using test me thods compatible with ERT are subject to this requirement to be submitted electroni cally into EPA’s WebFIRE database. §60.47b Emission monitoring for sulfur dioxide. (a) Except as provided in paragraphs (b) and (f) of this section, the owner or operator of an affected facility subject to the SO 2 standards in §60.42b shall install, calibrate, maintain, and operate CEMS for measuring SO 2 concentrations and either O 2 or CO 2 concentrations and shall record the output of the systems. For units complying with the percent reduction standard, the SO 2 and either O 2 or CO 2 concentrations shall both be monitored at the inlet and outlet of the SO 2 control device. If the owner or operator has installed and certified SO 2 and O 2 or CO 2 CEMS according to the requirements of §75.20(c)(1) of this chapter and appendix A to part 75 of this chapter, and is continuing to meet the Comment [CF14]: Updated language for electronic reporting.25 ongoing quality assurance requirements of §75.21 of this chapter and appendix B to part 75 of this chapter, those CEMS may be used to meet th e requirements of this section, provided that: (1) When relative accuracy testing is conducted, SO 2 concentration data and CO 2 (or O 2 ) data are collected simultaneously; and (2) In addition to meeting the applicable SO 2 and CO 2 (or O 2 ) relative accuracy spec ifications in Figure 2 of appendix B to part 75 of this chapter, the rela tive accuracy (RA) standard in section 13.2 of Performance Specification 2 in appendix B to this part is met when the RA is calculated on a lb/MMBtu basis; and (3) The reporting requirements of §60.49b are met. SO 2 and CO 2 (or O 2 ) data used to meet the requirements of §60.49b shall not include substitu te data values derived from the missing data procedures in subpart D of part 75 of this chapter, nor shall the SO 2 data have been bias adjusted according to the procedures of part 75 of this chapter. (b) As an alternative to operating CEMS as required under paragraph (a) of this section, an owner or operator may elect to determine the average SO 2 emissions and percent reduction by: (1) Collecting coal or oil samples in an as-fired condition at the inlet to the steam generating unit and analyzing them for sulfur and heat content accord ing to Method 19 of appendix A of this part. Method 19 of appendix A of this part provides procedures fo r converting these measurements into the format to be used in calculating the average SO 2 input rate, or (2) Measuring SO 2 according to Method 6B of appendix A of th is part at the inlet or outlet to the SO 2 control system. An initial stratification test is required to verify the adequacy of the Method 6B of appendix A of this part sampling location. The stratification test shall consist of three paired runs of a suitable SO 2 and CO 2 measurement train operated at the candida te location and a second similar train operated according to the procedures in section 3. 2 and the applicable procedures in section 7 of Performance Specification 2. Method 6B of appendix A of this part, Method 6A of appendix A of this part, or a combination of Methods 6 and 3 or 3B of appendix A of this part or Methods 6C and 3A of appendix A of this part are suitable measurement techniques. If Method 6B of appendix A of this part is used for the second train, sampling time and timer opera tion may be adjusted for the stratification test as long as an adequate sample volume is collected; however, both sampling trains are to be operated similarly. For the location to be ad equate for Method 6B of appendix A of this part 24-hour tests, the mean of the absolute difference between the three paired runs must be less than 10 percent. (3) A daily SO 2 emission rate, E D , shall be determined using the procedure described in Method 6A of appendix A of this part, section 7.6.2 (Equation 6A–8) and stated in ng/J (lb/MMBtu) heat input. (4) The mean 30-day emission rate is calculated usi ng the daily measured values in ng/J (lb/MMBtu) for 30 successive steam generating unit operating days using equation 19–20 of Method 19 of appendix A of this part. (c) The owner or operator of an affected facility sha ll obtain emission data for at least 75 percent of the operating hours in at least 22 out of 30 successi ve boiler operating days. If this minimum data requirement is not met with a single monitoring system, the owner or operator of the affected facility shall supplement the emission data with data collecte d with other monitoring systems as approved by the Administrator or the reference methods and procedures as described in paragraph (b) of this section. (d) The 1-hour average SO 2 emission rates measured by the CEMS required by paragraph (a) of this section and required under §60.13(h) is expressed in ng/J or lb/MMBtu heat input and is used to calculate the average emission rates under §60.42(b). Each 1-hour average SO 2 emission rate must be26 based on 30 or more minutes of steam generating unit operation. The hourly averages shall be calculated according to §60.13(h)(2). Hourly SO 2 emission rates are not calculated if the affected facility is operated less than 30 minutes in a given clock hour and ar e not counted toward determination of a steam generating unit operating day. (e) The procedures under §60.13 shall be followed fo r installation, evaluation, and operation of the CEMS. (1) Except as provided for in paragraph (e)(4) of this section, all CEMS shall be operated in accordance with the applicable procedures under Performance Speci fications 1, 2, and 3 of appendix B of this part. (2) Except as provided for in paragraph (e)(4) of this section, quarterly accuracy determinations and daily calibration drift tests shall be performed in acco rdance with Procedure 1 of appendix F of this part. (3) For affected facilities combusting coal or oil, alone or in combination with ot her fuels, the span value of the SO 2 CEMS at the inlet to the SO 2 control device is 125 percent of the maximum estimated hourly potential SO 2 emissions of the fuel combusted, and the span value of the CEMS at the outlet to the SO 2 control device is 50 percent of the maximum estimated hourly potential SO 2 emissions of the fuel combusted. Alternatively, SO 2 span values determined according to section 2.1.1 in appendix A to part 75 of this chapter may be used. (4) As an alternative to meeting the requirements of requirements of paragraphs (e)(1) and (e)(2) of this section, the owner or operator may elect to im plement the following alternative data accuracy assessment procedures: (i) For all required CO 2 and O 2 monitors and for SO 2 and NO X monitors with span values greater than or equal to 100 ppm, the daily calibration error test a nd calibration adjustment procedures described in sections 2.1.1 and 2.1.3 of appendix B to part 75 of this chapter may be followed instead of the CD assessment procedures in Procedure 1, section 4.1 of appendix F to this part. (ii) For all required CO 2 and O 2 monitors and for SO 2 and NO X monitors with span values greater than 30 ppm, quarterly linearity checks may be performed in accordance with section 2.2.1 of appendix B to part 75 of this chapter, instead of performing the cyli nder gas audits (CGAs) desc ribed in Procedure 1, section 5.1.2 of appendix F to this part. If this op tion is selected: The frequency of the linearity checks shall be as specified in section 2.2.1 of appendix B to part 75 of this chapter; the applicable linearity specifications in section 3.2 of appendix A to part 75 of this chapter shall be met; the data validation and out-of-control criteria in section 2.2.3 of appendix B to part 75 of this chapter shall be followed instead of the excessive audit inaccuracy and out-of-control crit eria in Procedure 1, section 5.2 of appendix F to this part; and the grace period provisions in section 2. 2.4 of appendix B to part 75 of this chapter shall apply. For the purposes of data validation under th is subpart, the cylinder gas audits described in Procedure 1, section 5.1.2 of appendix F to this part shall be performed for SO 2 and NO X span values less than or equal to 30 ppm; and (iii) For SO 2 , CO 2 , and O 2 monitoring systems and for NO X emission rate monitoring systems, RATAs may be performed in accordance with section 2.3 of appendix B to part 75 of this chapter instead of following the procedures described in Procedure 1, sec tion 5.1.1 of appendix F to this part. If this option is selected: The frequency of each RATA shall be as specified in section 2.3.1 of appendix B to part 75 of this chapter; the applicable relative accuracy sp ecifications shown in Figure 2 in appendix B to part 75 of this chapter shall be met; the data validation a nd out-of-control criteria in section 2.3.2 of appendix B to part 75 of this chapter shall be followed instea d of the excessive audit inaccuracy and out-of-control criteria in Procedure 1, section 5.2 of appendix F to this part; and the grace period provisions in section 2.3.3 of appendix B to part 75 of this chapter shall apply. For the purposes of data validation under this27 subpart, the relative accuracy specification in section 13.2 of Performance Specification 2 in appendix B to this part shall be met on a lb/MMBtu basis for SO 2 (regardless of the SO 2 emission level during the RATA), and for NO X when the average NO X emission rate measured by the reference method during the RATA is less than 0.100 lb/MMBtu. (f) The owner or operator of an affected facility that combusts very low sulfur oil or is demonstrating compliance under §60.45b(k) is not subject to the emission monitoring requirements under paragraph (a) of this section if the owner or operator main tains fuel records as described in §60.49b(r). §60.48b Emission monitoring for particulate matter and nitrogen oxides. (a) Except as provided in paragraph (j) of this sec tion, the owner or operator of an affected facility subject to the opacity standard under §60.43b shall in stall, calibrate, maintain, and operate a continuous opacity monitoring system (COMS) for measuring the opacity of emissions discharged to the atmosphere and record the output of the system. The owner or operator of an affected facility subject to an opacity standard under §60.43b and meeting the c onditions under paragraphs (j)(1), (2), (3), (4), (5), or ( 5) 6) of this section who elects not to use a COMS shall conduct a performance test using Method 9 of appendix A–4 of this part and the procedures in §60.11 to demonstrate compliance with the applicable limit in §60.43b by April 29, 2011, within 45 days of stopping use of an existing COMS, or within 180 days after initial startup of the facility, whichever is later, and shall comply with either paragraphs (a)(1), (a)(2), or (a)(3) of this sectio n. The observation period for Method 9 of appendix A-4 of this part performance tests may be reduced from 3 hours to 60 minutes if all 6-minute averages are less than 10 percent and all individual 15-second observa tions are less than or equal to 20 percent during the initial 60 minut es of observation. (1) Except as provided in paragraph (a)(2) and (a)(3) of this section, the owner or operator shall conduct subsequent Method 9 of appendix A–4 of this part pe rformance tests using the procedures in paragraph (a) of this section according to th e applicable schedule in paragraphs (a)(1)(i) through (a)(1)(iv) of this section, as determined by the most recent Method 9 of appendix A–4 of this part performance test results. (i) If no visible emissions are obs erved, a subsequent Method 9 of appendix A–4 of this part performance test must be completed within 12 cale ndar months from the date that the most recent performance test was conducted or within 45 days of the next day th at fuel with an opacity standard is combusted, whichever is later ; (ii) If visible emissions are observed but the maximum 6-minute average opacity is less than or equal to 5 percent, a subsequent Method 9 of appendix A–4 of this part performance test must be completed within 6 calendar months from the date that the most recent performance test was conducted or within 45 days of the next day that fuel with an opaci ty standard is combusted, whichever is later ; (iii) If the maximum 6-minute average opacity is greater than 5 percent but less than or equal to 10 percent, a subsequent Method 9 of appendix A–4 of this part performance test must be completed within 3 calendar months from the date that the mo st recent performance test was conducted or within 45 days of the next day that fuel with an opacity standard is combusted, whichever is later ; or (iv) If the maximum 6-minute average opacity is gr eater than 10 percent, a subsequent Method 9 of appendix A–4 of this part performance test must be completed within 45 calendar days from the date that the most recent performance test was conducted. (2) If the maximum 6-minute opacity is less than 10 percent during the most recent Method 9 of appendix A–4 of this part performance test, the owner or operator may, as an alternative to performing Comment [CF15]: Allow flexibility to account for intermittent use of fuels with an opacity standard.28 subsequent Method 9 of appendix A–4 of this part performance tests, elect to perform subsequent monitoring using Method 22 of appendix A–7 of this part according to the procedures specified in paragraphs (a)(2)(i) and (ii) of this section. (i) The owner or operator shall conduct 10 minute observations (during normal operation) each operating day the affected facility fires fuel for which an opacity standard is applicable using Method 22 of appendix A–7 of this part and demonstrate that th e sum of the occurrences of any visible emissions is not in excess of 5 percent of the observation period ( i.e. , 30 seconds per 10 minute period). If the sum of the occurrence of any visible emissions is gr eater than 30 seconds during the initial 10 minute observation, immediately conduct a 30 minute observation. If the sum of the occurrence of visible emissions is greater than 5 percent of the observation period ( i.e. , 90 seconds per 30 minute period), the owner or operator shall either document and adjust the operation of the facility and demonstrate within 24 hours that the sum of the occurrence of visible emis sions is equal to or less than 5 percent during a 30 minute observation ( i.e. , 90 seconds) or conduct a new Method 9 of appendix A–4 of this part performance test using the procedures in paragraph (a) of this section within 45 calendar days according to the requirements in §60.46d(d)(7). (ii) If no visible emi ssions are observed for 30 10 operating days during which an opacity standard is applicable, observations can be reduced to once ever y 7 operating days during which an opacity standard is applicable. If any visible emissions are obs erved, daily observations shall be resumed. (3) If the maximum 6-minute opacity is less than 10 percent during the most recent Method 9 of appendix A–4 of this part performance test, the owner or operator may, as an alternative to performing subsequent Method 9 of appendix A–4 performance test s, elect to perform subsequent monitoring using a digital opacity compliance system according to a site-specific monitoring plan approved by the Administrator. The observations shal l be similar, but not necessarily identical, to the requirements in paragraph (a)(2) of this section. For reference purposes in preparing the monitoring plan, see OAQPS “Determination of Visible Emission Opacity fro m Stationary Sources Using Computer-Based Photographic Analysis Systems.” This document is available from the U.S. Environmental Protection Agency (U.S. EPA); Office of Air Quality and Pl anning Standards; Sector Policies and Programs Division; Measurement Policy Group (D243–02), Research Triangle Park, NC 27711. This document is also available on the Technology Transfer Netw ork (TTN) under Emission Measurement Center Preliminary Methods. (b) Except as provided under paragraphs (g), (h), and (i ) of this section, the owner or operator of an affected facility subject to a NO X standard under §60.44b shall comply with either paragraphs (b)(1) or (b)(2) of this section. (1) Install, calibrate, maintain, and operate CEMS for measuring NO X and O 2 (or CO 2 ) emissions discharged to the atmosphere, and shall record the output of the system; or (2) If the owner or operator has installed a NO X emission rate CEMS to meet the requirements of part 75 of this chapter and is continuing to meet the ongoing requirements of part 75 of this chapter, that CEMS may be used to meet the requirements of this secti on, except that the owner or operator shall also meet the requirements of §60.49b. Data reported to meet the requirements of §60.49b shall not include data substituted using the missing data procedures in subpart D of part 75 of this chapter, nor shall the data have been bias adjusted according to the procedures of part 75 of this chapter. (c) The CEMS required under paragraph (b) of this s ection shall be operated and data recorded during all periods of operation of the affected facility except for CEMS breakdowns and repairs. Data is recorded during calibration checks, and zero and span adjustments. Comment [CF16]: Reduce number of required operating days with no visible emissions to begin reduced monitoring29 (d) The 1-hour average NO X emission rates measured by the continuous NO X monitor required by paragraph (b) of this sec tion and required under §60.13(h) shall be expressed in ng/J or lb/MMBtu heat input and shall be used to calculate the average emission rates under §60.44b. The 1-hour averages shall be calculated using the data points required under §60.13(h)(2). (e) The procedures under §60.13 shall be followed fo r installation, evaluation, and operation of the continuous monitoring systems. (1) For affected facilities combusting coal, wood or municipal-type solid waste, the span value for a COMS shall be between 60 and 80 percent. (2) For affected facilities combusting coal, oil, or natural gas, the span value for NO X is determined using one of the following procedures: (i) Except as provided under paragraph (e)(2)(ii) of this section, NO X span values shall be determined as follows:

Fuel Span values for NO X (ppm)

N atural gas 500.

Oil 500.

Coal 1,000. Mixtures 500 (x + y) + 1,000z.

Where: x = Fraction of total heat input derived from natural gas; y = Fraction of total heat input derived from oil; and z = Fraction of total heat input derived from coal. (ii) As an alternative to meeting the requirements of paragraph (e)(2)(i) of this section, the owner or operator of an affected facility may elect to use the NO X span values determined according to section 2.1.2 in appendix A to part 75 of this chapter. (3) All span values computed under paragraph (e)(2) (i) of this section for combusting mixtures of regulated fuels are rounded to the nearest 500 ppm. Span values computed under paragraph (e)(2)(ii) of this section shall be rounded off ac cording to section 2.1.2 in appendix A to part 75 of this chapter. (f) When NO X emission data are not obtained because of CE MS breakdowns, repairs, calibration checks and zero and span adjustments, emission data will be obtained by using standby monitoring systems, Method 7 of appendix A of this part, Method 7A of appendix A of this part, or other approved reference methods to provide emission data for a minimum of 75 percent of the operating hours in each steam generating unit operating day, in at least 22 out of 30 successive steam generating unit operating days. (g) The owner or operator of an affected facility that has a heat input capacity of 73 MW (250 MMBtu/hr) or less, and that has an annual capacity factor for residual oil having a nitrogen content of 0.30 weight percent or less, natural gas, distillate oil, gasified coal, or any mixture of these fuels, greater than 10 percent (0.10) shall: (1) Comply with the provisions of paragraphs (b), (c), (d), (e)(2), (e)(3), and (f) of this section; or30 (2) Monitor steam generating unit operating conditions and predict NO X emission rates as specified in a plan submitted pursuant to §60.49b(c). (h) The owner or operator of a duct burner, as described in §60.41b, that is subject to the NO X standards in §60.44b(a)(4), §60.44b(e), or §60.44b(l) is not requi red to install or operate a continuous emissions monitoring system to measure NO X emissions. (i) The owner or operator of an affected facility de scribed in §60.44b(j) or §60.44b(k) is not required to install or operate a CEMS for measuring NO X emissions. (j) The owner or operator of an affected facility that meets the conditions in either paragraph (j)(1), (2), (3), (4), (5), (6), or ( 6 7 ) of this section is not required to install or operate a COMS if: (1) The affected facility uses a PM CEMS to monitor PM emissions; or (2) The affected facility burns only liquid (excl uding residual oil) or gase ous fuels with potential SO 2 emissions rates of 26 ng/J (0.060 lb/MMBtu) or less and does not use a post-combustion technology to reduce SO 2 or PM emissions. The owner or operator must maintain fuel records of the sulfur content of the fuels burned, as described under §60.49b(r); or (3) The affected facility burns coke oven gas alone or in combination with fuels meeting the criteria in paragraph (j)(2) of this section and does not use a post-combustion technology to reduce SO 2 or PM emissions; or (4) The affected facility does not use post-combus tion technology (except a wet scrubber) for reducing PM, SO 2 , or carbon monoxide (CO) emissions, burns only gaseous fuels or fuel oils that contain less than or equal to 0.30 weight percen t sulfur, and is operated such that emissions of CO to the atmosphere from the affected facility are maintained at levels less than or equal to 0.15 lb/MMBtu on a steam generating unit operating day average basis. Owners and operators of affected facilities electing to comply with this paragraph must demonstrate comp liance according to the procedures specified in paragraphs (j)(4)(i) through (iv) of this section; or (i) You must monitor CO emissions using a CEMS acco rding to the procedures specified in paragraphs (j)(4)(i)(A) through (D) of this section. (A) The CO CEMS must be installed, certified, ma intained, and operated according to the provisions in §60.58b(i)(3) of subpart Eb of this part. (B) Each 1-hour CO emissions average is calculated using the data points generated by the CO CEMS expressed in parts per million by volume corrected to 3 percent oxygen (dry basis). (C) At a minimum, valid 1-hour CO emissions averages must be obtained for at least 90 percent of the operating hours on a 30-day rolling average basis. The 1-hour averages are calculated using the data points required in §60.13(h)(2). (D) Quarterly accuracy determinations and daily ca libration drift tests for the CO CEMS must be performed in accordance with procedure 1 in appendix F of this part. (ii) You must calculate the 1-hour average CO emissions levels for each steam generating unit operating day by multiplying the average hourly CO output co ncentration measured by the CO CEMS times the corresponding average hourly flue gas flow rate a nd divided by the corresponding average hourly heat input to the affected source. The 24-hour average CO emission level is determined by calculating the arithmetic average of the hourly CO emission levels computed for each steam generating unit operating day.31 (iii) You must evaluate the preceding 24-hour average CO emission level each steam generating unit operating day excluding periods of affected source st artup, shutdown, or malfunction. If the 24-hour average CO emission level is greater than 0.15 lb/MMB tu, you must initiate investigation of the relevant equipment and control systems within 24 hours of the first discovery of the high emission incident and, take the appropriate corrective acti on as soon as practicable to adju st control settings or repair equipment to reduce the 24-hour average CO emission level to 0.15 lb/MMBtu or less. (iv) You must record the CO measurements and calc ulations performed according to paragraph (j)(4) of this section and any corrective actions taken. The reco rd of corrective action taken must include the date and time during which the 24-hour average CO emission level was greater than 0.15 lb/MMBtu, and the date, time, and description of the corrective action. (5) The affected facility uses a bag leak detection system to monitor the performance of a fabric filter (baghouse) according to the most recent current requirements in section §60.48Da of this part; or (6) (6) The affected facility uses an ESP as the pr imary PM control device and uses an ESP predictive model to monitor the performance of the ESP developed in accordance and operated according to the most current requirements in se ction §60.48Da of this part; or (7) The affected facility burns only gaseous fuels or fuel oils that contain less than or equal to 0.30 weight percent sulfur and operates according to a written site-specific monitoring plan approved by the permitting authority. This monitoring plan must include pr ocedures and criteria for establishing and monitoring specific parameters for the affected facility indicative of compliance with the opacity standard. (k) Owners or operators complying with the PM emission limit by using a PM CEMS must calibrate, maintain, operate, and record the output of the system for PM emissions discharged to the atmosphere as specified in §60.46b(j). The CEMS specified in pa ragraph §60.46b(j) shall be operated and data recorded during all periods of operation of the affected facility except for CEMS breakdowns and repairs. Data is recorded during calibration checks, and zero and span adjustments. (l) An owner or operator of an affected facility that is subject to an opacity standard under §60.43b(f) is not required to operate a COMS provided that the unit burns only gaseous fuels and/or liquid fuels (excluding residue oil) with a potential SO 2 emissions rate no greater than 26 ng/J (0.060 lb/MMBtu), and the unit operates according to a written site-s pecific monitoring plan approved by the permitting authority is not required to operate a COMS. This mo nitoring plan must include procedures and criteria for establishing and monitoring specific parameters for the affected facility indicative of compliance with the opacity standard. For testing performed as part of this site-specific monitoring plan, the permitting authority may require as an alternat ive to the notification and reporting requirements specified in §§60.8 and 60.11 that the owner or op erator submit any deviations with the excess emissions report required under §60.49b(h). §60.49b Reporting and recordkeeping requirements. (a) The owner or operator of each affected facility sha ll submit notification of the date of initial startup, as provided by §60.7. This notification shall include: (1) The design heat input capacity of the affected fa cility and identification of the fuels to be combusted in the affected facility; (2) If applicable, a copy of any federally enforceable requirement that limits the annual capacity factor for any fuel or mixture of fuels under §§60.42b(d)(1), 60.43b(a)(2), (a)(3)(iii), (c)(2)(ii), (d)(2)(iii), 60.44b(c), (d), (e), (i), (j), (k), 60.45b(d), (g), 60.46b(h), or 60.48b(i); Comment [CF17]: Add ESP model to COMS exemption options

Comment [CF18]: Add flexibility of monitoring plan

– similar to subpart Dc32 (3) The annual capacity factor at which the owner or operator anticipates operating the facility based on all fuels fired and based on each individual fuel fired; and (4) Notification that an emerging technology wi ll be used for controlling emissions of SO 2 . The Administrator will examine the description of the emerging technology and will determine whether the technology qualifies as an emerging technology. In making this determination, the Administrator may require the owner or operator of the affected facili ty to submit additional information concerning the control device. The affected facility is subject to the provisions of §60.42b(a) unless and until this determination is made by the Administrator. (b) The owner or operator of each affected facility subject to the SO 2 , PM, and/or NO X emission limits under §§60.42b, 60.43b, and 60.44b shall submit to the Administrator the performance test data from the initial performance test and the performance evalua tion of the CEMS using the applicable performance specifications in appendix B of this part. The owne r or operator of each affected facility described in §60.44b(j) or §60.44b(k) shall submit to the Administra tor the maximum heat input capacity data from the demonstration of the maximum heat input capacity of the affected facility. (c) The owner or operator of each affected facility subject to the NO X standard in §60.44b who seeks to demonstrate compliance with those standards thro ugh the monitoring of steam generating unit operating conditions in the provisions of §60.48b(g)(2) shall submit to the Administrator for approval a plan that identifies the operating conditions to be monitored in §60.48b(g)(2) and the records to be maintained in §60.49b(g). This plan shall be submitted to the Administrator for approval within 360 days of the initial startup of the affected facility. An affected facility burning coke oven gas alone or in combination with other gaseous fuels or distillate oil shall submit th is plan to the Administrator for approval within 360 days of the initial startup of the affected facility or by November 30, 2009, whichever date comes later. If the plan is approved, the owner or operator shall maintain records of predicted nitrogen oxide emission rates and the monitored operating conditi ons, including steam generating unit load, identified in the plan. The plan shall: (1) Identify the specific operating conditions to be monitored and the re lationship between these operating conditions and NO X emission rates ( i.e. , ng/J or lbs/MMBtu heat input). Steam generating unit operating conditions include, but are not li mited to, the degree of staged combustion ( i.e. , the ratio of primary air to secondary and/or tertiary air) and the level of excess air ( i.e. , flue gas O 2 level); (2) Include the data and information that the owner or operator used to identify the relationship between NO X emission rates and these operating conditions; and (3) Identify how these operating conditions, incl uding steam generating unit load, will be monitored under §60.48b(g) on an hourly basis by the owner or operator during the period of operation of the affected facility; the quality assurance procedures or pr actices that will be employed to ensure that the data generated by monitoring these operating conditions will be repres entative and accurate; and the type and format of the records of these operating conditions, including steam generating unit load, that will be maintained by the owner or operator under §60.49b(g). (d) Except as provided in paragraph (d)(2) of this sec tion, the owner or operator of an affected facility shall record and maintain records as specified in paragraph (d)(1) of this section. (1) The owner or operator of an affected facility shall record and maintain records of the amounts of each fuel combusted during each da y and calculate the annual capacity factor individually for coal, distillate oil, residual oil, natu ral gas, wood, and municipal-type solid waste for the reporting period. The annual capacity factor is determined on a 12-month rolling average basis with a new annual capacity factor calculated at the end of each calendar month.33 (2) As an alternative to meeting the requirements of paragraph (d)(1) of this section, the owner or operator of an affected facility that is subject to a federally enforceable permit restricting fuel use to a single fuel such that the facility is not require d to continuously monitor any emissions (excluding opacity) or parameters indicative of emissions may elec t to record and maintain records of the amount of each fuel combusted duri ng each calendar month. (e) For an affected facility that combusts resi dual oil and meets the criteria under §§60.46b(e)(4), 60.44b(j), or (k), the owner or operator shall maintain records of the nitrogen content of the residual oil combusted in the affected facility and calculate the average fuel nitrogen content for the reporting period. The nitrogen content sh all be determined using ASTM Method D4629 (incorporated by reference, see §60.17), or fuel suppliers. If residua l oil blends are being combusted, fuel nitrogen specifications may be prorated based on the ratio of residual oils of different nitrogen content in the fuel blend. (f) For an affected facility subject to the opacity standard in §60.43b, the owner or operator shall maintain records of opacity. In addition, an owner or operator that elects to monitor emissions according to the requirements in §60.48b(a) shall maintain records according to the requirements specified in paragraphs (f)(1) through (3) of this section, as a pplicable to the visible emissions monitoring method used. (1) For each performance test conducted using Method 9 of appendix A–4 of this part, the owner or operator shall keep the records including the information specified in paragraphs (f)(1)(i) through (iii) of this section. (i) Dates and time intervals of all opacity observation periods; (ii) Name, affiliation, and copy of current visible emission reading certification for each visible emission observer participating in the performance test; and (iii) Copies of all visible emission observer opacity field data sheets ;

. (2) For each performance test conducted using Method 22 of appendix A–4 of this part, the owner or operator shall keep the records including the information specified in paragraphs (f)(2)(i) through (iv) of this section. (i) Dates and time intervals of all visible emissions observation periods; (ii) Name and affiliation for each visible emission observer participating in the performance test; (iii) Copies of all visible emission observer opacity field data sheets; and (iv) Documentation of any adjustments made and the time the adjustments were completed to the affected facility operation by the owner or operato r to demonstrate compliance with the applicable monitoring requirements. (3) For each digital opacity compliance system, the owner or operator shall maintain records and submit reports according to the requirements specified in the site-specific monitoring plan approved by the Administrator. (g) Except as provided under paragraph (p) of this secti on, the owner or operator of an affected facility subject to the NO X standards under §60.44b shall maintain records of the following information for each steam generating unit operating day: (1) Calendar date;34 (2) The average hourly NO X emission rates (expressed as NO 2 ) (ng/J or lb/MMBtu heat input) measured or predicted; (3) The 30-day average NO X emission rates (ng/J or lb/MMBtu heat input) calculated at the end of each steam generating unit operating day from the measured or predicted hourly nitrogen oxide emission rates for the preceding 30 steam generating unit operating days; (4) Identification of the steam generating unit opera ting days when the calculated 30-day average NO X emission rates are in excess of the NO X emissions standards under §60.44b, with the reasons for such excess emissions as well as a descri ption of corrective actions taken; (5) Identification of the steam generating unit operati ng days for which pollutant data have not been obtained, including reasons for not obtaining suffici ent data and a description of corrective actions taken; (6) Identification of the times when emission data ha ve been excluded from the calculation of average emission rates and the r easons for excluding data; (7) Identification of “F” factor used for calculations, method of determination, and type of fuel combusted; (8) Identification of the times when the pollutant concentration exceeded full span of the CEMS; (9) Description of any modifications to the CEMS that could affect the ability of the CEMS to comply with Performance Specification 2 or 3; and (10) Results of daily CEMS drift tests and quarterly accuracy assessments as re quired under appendix F, Procedure 1 of this part. (h) The owner or operator of any affected facility in any category listed in paragraphs (h)(1) or (2) of this section is required to submit excess emission re ports for any excess emissions that occurred during the reporting period. (1) Any affected facility subject to the opacity standards in §60.43b(f) or to the operating parameter monitoring requirements in §60.13(i)(1). (2) Any affected facility that is subject to the NO X standard of §60.44b, and that: (i) Combusts natural gas, distillate oil, gasified coal , or residual oil with a nitrogen content of 0.3 weight percent or less; or (ii) Has a heat input capacity of 73 MW (250 MMBtu/hr) or less and is required to monitor NO X emissions on a continuous basis under §60.48b(g)(1) or steam generating unit operating conditions under §60.48b(g)(2). (3) For the purpose of §60.43b, excess emissions ar e defined as all 6-minute periods during which the average opacity exceeds the opaci ty standards under §60.43b(f). (4) For purposes of §60.48b(g)(1), excess emissions ar e defined as any calculated 30-day rolling average NO X emission rate, as determined under §60.46b(e), th at exceeds the applicab le emission limits in §60.44b. (i) The owner or operator of any affected facility s ubject to the continuous monitoring requirements for NO X under §60.48(b) shall submit reports containing the information recorded under paragraph (g) of this section.35 (j) The owner or operator of any affected facility subject to the SO 2 standards under §60.42b shall submit reports. (k) For each affected facility subject to the compli ance and performance testing requirements of §60.45b and the reporting requirement in paragraph (j) of this section, the following information shall be reported to the Administrator: (1) Calendar dates covered in the reporting period; (2) Each 30-day average SO 2 emission rate (ng/J or lb/MMBtu heat input) measured during the reporting period, ending with the last 30-da y period; reasons for noncompliance with the emission standards; and a description of corrective actions taken; Fo r an exceedance due to maintenance of the SO 2 control system covered in paragraph 60.45b(a), the report sh all identify the days on which the maintenance was performed and a description of the maintenance; (3) Each 30-day average percent reduction in SO 2 emissions calculated during the reporting period, ending with the last 30-day period; reasons for no ncompliance with the em ission standards; and a description of corrective actions taken; (4) Identification of the steam generating unit operati ng days that coal or oil was combusted and for which SO 2 or diluent (O 2 or CO 2 ) data have not been obtained by an approved method for at least 75 percent of the operating hours in th e steam generating unit operating day; justification for not obtaining sufficient data; and description of corrective action taken; (5) Identification of the times when emissions data have been excluded from the calculation of average emission rates; justification for excluding data; and description of corrective action taken if data have been excluded for periods other than those during wh ich coal or oil were not combusted in the steam generating unit; (6) Identification of “F” factor used for calculations, method of determination, and type of fuel combusted; (7) Identification of times when hourly averag es have been obtained based on manual sampling methods; (8) Identification of the times when the pollutant concentration exceeded full span of the CEMS; (9) Description of any modifications to the CEMS that could affect the ability of the CEMS to comply with Performance Specification 2 or 3; (10) Results of daily CEMS drift tests and quarterly accuracy assessments as re quired under appendix F, Procedure 1 of this part; and (11) The annual capacity factor of each fired as provided under paragraph (d) of this section. (l) For each affected facility subject to the compliance and performance testing requirements of §60.45b(d) and the reporting requirements of paragraph (j) of this section, the following information shall be reported to the Administrator: (1) Calendar dates when the facility was in operation during the reporting period; (2) The 24-hour average SO 2 emission rate measured for each steam generating unit operating day during the reporting period that coal or oil was co mbusted, ending in the last 24-hour period in the quarter; reasons for noncompliance with the emission standards; and a descrip tion of corrective actions taken;36 (3) Identification of the steam generating unit operati ng days that coal or oil was combusted for which S0 2 or diluent (O 2 or CO 2 ) data have not been obtained by an a pproved method for at least 75 percent of the operating hours; justification for not obtaining su fficient data; and description of corrective action taken; (4) Identification of the times when emissions data have been excluded from the calculation of average emission rates; justification for excluding data; and description of corrective action taken if data have been excluded for periods other than those during wh ich coal or oil were not combusted in the steam generating unit; (5) Identification of “F” factor used for calculations, method of determination, and type of fuel combusted; (6) Identification of times when hourly averag es have been obtained based on manual sampling methods; (7) Identification of the times when the pollutant concentration exceeded full span of the CEMS; (8) Description of any modifications to the CEMS that could affect the ability of the CEMS to comply with Performance Specification 2 or 3; and (9) Results of daily CEMS drift tests and quarterly accuracy assessments as required under Procedure 1 of appendix F 1 of this part. If the owner or operat or elects to implement the alternative data assessment procedures described in §§60.47b(e)(4)(i) through (e)( 4)(iii), each data assessment report shall include a summary of the results of all of the RATAs, lin earity checks, CGAs, and calibration error or drift assessments required by §§60.47b(e)(4)(i) through (e)(4)(iii). (m) For each affected facility subject to the SO 2 standards in §60.42(b) for which the minimum amount of data required in §60.47b(c) were not obtained dur ing the reporting period, the following information is reported to the Administrator in addition to th at required under paragraph (k) of this section: (1) The number of hourly averages available for outlet emission rates and inlet emission rates; (2) The standard deviation of hourly averages for outlet emission rates and inlet emission rates, as determined in Method 19 of appendix A of this part, section 7; (3) The lower confidence limit for the mean outlet emission rate and the upper confidence limit for the mean inlet emission rate, as calculated in Method 19 of appendix A of this part, section 7; and (4) The ratio of the lower confidence limit for the mean outlet emission rate and the allowable emission rate, as determined in Method 19 of appendix A of this part, section 7. (n) If a percent removal efficiency by fuel pretreatment (i.e

. , %R f ) is used to determine the overall percent reduction ( i.e. , %R o ) under §60.45b, the owner or operator of the affected facility shall submit a signed statement with the report. (1) Indicating what removal effici ency by fuel pretreatment (i.e

. , %R f ) was credited during the reporting period; (2) Listing the quantity, heat content, and date each pre-treated fuel shipment was received during the reporting period, the name and location of the fuel pr etreatment facility; and the total quantity and total heat content of all fuels received at the affected facility during the reporting period; (3) Documenting the transport of the fuel from the fuel pretreatment facility to the steam generating unit; and37 (4) Including a signed statement from the owner or opera tor of the fuel pretreatment facility certifying that the percent removal efficiency achieved by fuel pretreatment was determined in accordance with the provisions of Method 19 of appendix A of this part and listing the heat content and sulfur content of each fuel before and after fuel pretreatment. (o) All records required under this section shall be ma intained by the owner or operator of the affected facility for a period of 2 years following the date of such record. (p) The owner or operator of an affected facility described in §60.44b(j) or (k) shall maintain records of the following information for each steam generating unit operating day: (1) Calendar date; (2) The number of hours of operation; and (3) A record of the hourly steam load. (q) The owner or operator of an affected facility described in §60.44b(j) or §60.44b(k) shall submit to the Administrator a report containing: (1) The annual capacity factor over the previous 12 months; (2) The average fuel nitrogen content during the re porting period, if residual oil was fired; and (3) If the affected facility meets the criteria described in §60.44b(j), the results of any NO X emission tests required during the reporting period, the hours of operation during the reporting period, and the hours of operation since the last NO X emission test. (r) The owner or operator of an affected facility who elects to use the fuel based compliance alternatives in §60.42b or §60.43b shall either: (1) The owner or operator of an affected facility who elects to demonstrate that the affected facility combusts only very low sulfur oil, natural gas, wood, a mixture of these fuels, or any of these fuels (or a mixture of these fuels) in combination with other fu els that are known to contain an insignificant amount of sulfur in §60.42b(j) or §60.42b(k) shall obtain and maintain at the affected facility fuel receipts (such as a current, valid purchase contract, ta riff sheet, or transportation contract) from the fuel supplier that certify that the oil meets the definition of distillate oil and gaseous fuel meets the definition of natural gas as defined in §60.41b and the applicable sulfur lim it. For the purposes of this section, the distillate oil need not meet the fuel nitrogen content specification in the definition of distillate oil. Reports shall be submitted to the Administrator certifying that only very low sulfur oil meeting this definition, natural gas, wood, and/or other fuels that are known to cont ain insignificant amounts of sulfur were combusted in the affected facility during the reporting period; or (2) The owner or operator of an affected facility who elects to demonstrate compliance based on fuel analysis in §60.42b or §60.43b shall develop and subm it a site-specific fuel analysis plan to the Administrator for review and approval no later than 60 days before the date you intend to demonstrate compliance. Each fuel analysis plan shall include a minimum initial requirement of weekly testing and each analysis report shall contain, at a minimum, the following information: (i) The potential sulfur emissions rate of the representative fuel mixture in ng/J heat input; (ii) The method used to determine the potential sulfur emissions rate of each constituent of the mixture. For distillate oil and natural gas a fuel receipt or tariff sheet is acceptable; (iii) The ratio of different fuels in the mixture; and Comment [CF19]: Allow tariff sheets similar to subpart KKKK38 (iv) The owner or operator can petition the Administra tor to approve monthly or quarterly sampling in place of weekly sampling. (s) Facility specific NO X standard for Cytec Industries Fortier Plant's C.AOG incinerator located in Westwego, Louisiana: (1) Definitions

. Oxidation zone is defined as the portion of the C.AOG incinerator that extends from the inlet of the oxidizing zone combustion air to the outlet gas stack. Reducing zone is defined as the portion of the C.AOG incine rator that extends from the burner section to the inlet of the oxidizing zone combustion air.

Total inlet air is defined as the total amount of air introduced into the C.AOG incinerator for combustion of natural gas and chemical by-product waste and is equal to the sum of the air flow into the reducing zone and the air flow into the oxidation zone. (2) Standard for nitrogen oxides . (i) When fossil fuel alone is combusted, the NO X emission limit for fossil fuel in §60.44b(a) applies. (ii) When natural gas and chemical by-produc t waste are simultaneously combusted, the NO X emission limit is 289 ng/J (0.67 lb/MMBtu) and a maximum of 81 percent of the total inlet air provided for combustion shall be provided to the reducing zone of the C.AOG incinerator. (3) Emission monitoring . (i) The percent of total inlet air provided to the reducing zone shall be determined at least every 15 minutes by measuring the air flow of all the air entering the reducing zone and the air flow of all the air entering the oxidation zone, and compliance with the percentage of total inlet air that is provided to the reducing zone shall be determined on a 3-hour average basis. (ii) The NO X emission limit shall be determined by the co mpliance and performance test methods and procedures for NO X in §60.46b(i). (iii) The monitoring of the NO X emission limit shall be performed in accordance with §60.48b. (4) Reporting and recordkeeping requirements . (i) The owner or operator of the C.AOG incinerator shall submit a report on any excursions from the limits required by paragraph (a)(2) of this section to the Administrator with the quarterly report re quired by paragraph (i) of this section. (ii) The owner or operator of the C.AOG incinerator shall keep records of the monitoring required by paragraph (a)(3) of this section for a period of 2 years following the date of such record. (iii) The owner of operator of the C.AOG incinerator shall perform all the applicable reporting and recordkeeping requirements of this section. (t) Facility-specific NO X standard for Rohm and Haas Kentucky Incorporated's Boiler No. 100 located in Louisville, Kentucky: (1) Definitions

. Air ratio control damper is defined as the part of the low NO X burner that is adjusted to control the split of total combustion air delivered to the reducing and oxidation portions of the combustion flame. Flue gas recirculation line is defined as the part of Boiler No. 100 that recirculates a portion of the boiler flue gas back into the combustion air. (2) Standard for nitrogen oxides . (i) When fossil fuel alone is combusted, the NO X emission limit for fossil fuel in §60.44b(a) applies.39 (ii) When fossil fuel and chemical by-produc t waste are simultaneously combusted, the NO X emission limit is 473 ng/J (1.1 lb/MMBtu), and the air ratio control damper tee handle shall be at a minimum of 5 inches (12.7 centimeters) out of the boiler, and th e flue gas recirculation lin e shall be operated at a minimum of 10 percent open as indicated by its valve opening position indicator. (3) Emission monitoring for nitrogen oxides . (i) The air ratio control damper tee handle setting and the flue gas recirculation line valve opening position indi cator setting shall be recorded during each 8-hour operating shift. (ii) The NO X emission limit shall be determined by the co mpliance and performance test methods and procedures for NO X in §60.46b. (iii) The monitoring of the NO X emission limit shall be performed in accordance with §60.48b. (4) Reporting and recordkeeping requirements . (i) The owner or operator of Boiler No. 100 shall submit a report on any excursions from the limits required by paragraph (b)(2) of this section to the Administrator with the quarterly report required by §60.49b(i). (ii) The owner or operator of Boiler No. 100 shall keep records of the monitoring required by paragraph (b)(3) of this section for a period of 2 years following the date of such record. (iii) The owner of operator of Boiler No. 100 shall perform all the applicable reporting and recordkeeping requirements of §60.49b. (u) Site-specific standard for Me rck & Co., Inc.'s Stonewall Plant in Elkton, Virginia . (1) This paragraph (u) applies only to the pharmaceutical manufacturing facility, commonly referred to as the Stonewall Plant, located at Route 340 South, in Elkton, Virginia (“site”) and only to the natural gas-fired boilers installed as part of the powerhouse c onversion required pursuant to 40 CFR 52.2454(g). The requirements of this paragraph shall apply, and th e requirements of §§60.40b through 60.49b(t) shall not apply, to the natural gas-fired boilers installed pursuant to 40 CFR 52.2454(g). (i) The site shall equip the natural gas-fired boilers with low NO X technology. (ii) The site shall install, calibrate, maintain, an d operate a continuous monitoring and recording system for measuring NO X emissions discharged to the atmosphere and opacity using a continuous emissions monitoring system or a predictiv e emissions monitoring system. (iii) Within 180 days of the completion of the powerhouse conversion, as required by 40 CFR 52.2454, the site shall perform a performance test to quantify criteria pollutant emissions. (2) [Reserved] (v) The owner or operator of an affected facili ty may submit electronic quarterly reports for SO 2 and/or NO X and/or opacity in lieu of submitting the written repor ts required under paragraphs (h), (i), (j), (k) or (l) of this section. The format of each quarterly el ectronic report shall be coordinated with the permitting authority. The electronic report(s) shall be submitted no later than 30 days after the end of the calendar quarter and shall be accompanied by a certificati on statement from the owner or operator, indicating whether compliance with the applicable emission st andards and minimum data requirements of this subpart was achieved during the reporting period. Before submitting reports in the electronic format, the owner or operator shall coordinate with the permit ting authority to obtain their agreement to submit reports in this alternative format. (w) The reporting period for the reports required under this subpart is each 6 month period. All reports shall be submitted to the Administrator and shall be postmarked by the 30th day following the end of the reporting period.40 (x) Facility-specific NO X standard for Weyerhaeuser Company's No. 2 Power Boiler located in New Bern, North Carolina: (1) Standard for nitrogen oxides . (i) When fossil fuel alone is combusted, the NO X emission limit for fossil fuel in §60.44b(a) applies. (ii) When fossil fuel and chemical by-produc t waste are simultaneously combusted, the NO X emission limit is 215 ng/J (0.5 lb/MMBtu). (2) Emission monitoring for nitrogen oxides . (i) The NO X emissions shall be determined by the compliance and performance test methods and procedures for NO X in §60.46b. (ii) The monitoring of the NO X emissions shall be performed in accordance with §60.48b. (3) Reporting and recordkeeping requirements . (i) The owner or operator of the No. 2 Power Boiler shall submit a report on any excursions from the limits required by paragraph (x)(2) of this section to the Administrator with the quarterly report required by §60.49b(i). (ii) The owner or operator of the No. 2 Power Boile r shall keep records of the monitoring required by paragraph (x)(3) of this section for a period of 2 years following the date of such record. (iii) The owner or operator of the No. 2 Power Boiler shall perform all the applicable reporting and recordkeeping requirements of §60.49b. (y) Facility-specific NO X standard for INEOS USA's AOGI located in Lima, Ohio: (1) Standard for NO X . (i) When fossil fuel alone is combusted, the NO X emission limit for fossil fuel in §60.44b(a) applies. (ii) When fossil fuel and chemical byproduc t/waste are simultaneously combusted, the NO X emission limit is 645 ng/J (1.5 lb/MMBtu). (2) Emission monitoring for NO X . (i) The NO X emissions shall be determined by the compliance and performance test methods and procedures for NO X in §60.46b. (ii) The monitoring of the NO X emissions shall be performed in accordance with §60.48b. (3) Reporting and recordkeeping requirements . (i) The owner or operator of the AOGI shall submit a report on any excursions from the limits required by para graph (y)(2) of this section to the Administrator with the quarterly report required by paragraph (i) of this section. (ii) The owner or operator of the AOGI shall keep records of the monitoring required by paragraph (y)(3) of this section for a period of 2 years following the date of such record. (iii) The owner or operator of the AOGI shall perform all the applicable reporting and recordkeeping requirements of this section.