June 23 , 2015 Revision RULE 74 .15.1 : 1

VENTURA COUNTY AIR POLLUTION CONTROL DISTRICT

RULE 74.15.1

- BOILERS, STEAM GENERATORS, AND PROCESS HEATERS (Adopted 5/11/93, Revised 6/13/95, 6/13/00, 9 / 11 /12

, 6 / 23 /15 )

A. Applicability The provisions of this rule apply to any gaseous fuel or liquid fuel fired boiler, steam generator, or process heater with a rated heat input capacity equal to or greater than 1 million BTU per hour and less than 5 million BTU per hour. Both stationary and portable process heaters are subject to this rule. Applicable gase ous fuels include natural gas, landfill gas, biogas, liquefied petroleum gas (LPG) , and produced oilfield gas

.

B. Requirements

1. No person shall allow the discharge into the atmosphere, from any boiler, steam generator, or process heater with an annual h eat input rate of equal to or greater

than 1.8 x 10 9 BTU, oxides of nitrogen (NOx) emissions in excess of 30 parts per million volume (ppmv). Carbon monoxide (CO) emissions from units subject to this rule shall not exceed 400 ppmv.

2. Emission Limits for New and Replacement Boilers and Steam Generators

and Process Heaters :

a. A fter January 1, 2013, n N o person shall allow the discharge into the atmosphere, from any new or replacement natural gas

- fired boiler, steam generator, or process heater with a rated heat input capacity of equal to or greater than 1 ,000,000 million BTU/hr and less than or equal to 2 ,000,000

million BTU/hr

, o xides of nitrogen emissions in excess of 20 ppmv or 0.025 lbs/MMBTU heat input

. C arbon monoxide emissions sha ll not

exceed 400 p pmv. In addition prior to installation , each device shall be

certified by the South Coast Air Quality Management District in accordance with the requirements of SCAQMD Rule 1146.2, adopted May 5, 2006.

b

. After January 1, 2016, no person shall allow th e discharge into the atmosphere, from any new or replacement boiler

, steam generator , or process heater fired with a rated heat input capacity of greater than 2

million BTU/hr and less than 5 million BTU/hr oxides of nitrogen

emissions in excess of the fol lowing limits:

CATEGORY LIMIT S

Units fired on Natural Gas

- Atmospheric 12 ppm or 0.015 lbs/MMBTU heat input

Units fired on Natural Gas

- Pressurized 9 ppm or 0.011 lbs/MMBTU heat input

Units fired on Landfill Gas 25 ppm or 0.031 lbs/MMBTU heat input Units fired on Biogas 15 ppm or 0.019 lbs/MMBTU heat input Units fired on Liquefied Petroleum Gas 20 ppm or 0.025 lbs/MMBTU heat input

Units fired on Produced Oilfield Gas

- Atmospheric 15 ppm or 0.019 lbs/MMBTU heat input

Units fired o n Produced Oilfie ld Gas

– Pressurized 12 ppm or 0.015 lbs/MMBTU heat inputJune 23 , 2015 Revision RULE 74 .15.1 : 2 Carbon monoxide emissions shall not exceed 400 ppmv or 0.30

lbs/MMBTU.

3

. Any boiler, steam generator, or process heater with an annual heat input rate of equal to or greater than 0.3 x 10 9 BTU an d less than 1.8 x 10 9 BTU (less than 2.8

x 10 9 BTU for portable oil well dewaxing process heaters) shall comply with one of the following requirements:

a. The unit shall be tuned every 6 months or after 750 hours of operation since the previous tune

- up, wh ichever occurs last, but in no case less than once per calendar year. The unit shall be tuned in accordance with the procedure described in Attachment 1 for forced draft

- fired equipment or

Attachment 2 for natural draft

- fired equipment; or

b. The unit sh all comply with the emission and testing requirements of

Subsection B

. 4

.

4

. Test Requirements

a. Units with a rated heat input capacity of greater than 2 million BTU/hr, and subject to the provisions of Subsection B.1, shall test for compliance upon init ial installation and then n ot less than once every 24 months.

b. Units with a rated heat input capacity of greater than 2 million BTU/hr, and subject to the provisions of Subsection B.2.b shall test for compliance upon initial installation and then not le ss than once every 48 months.

b c

. Units with a rated heat input capacity of less than or equal to 2 million BTU/hr, and subject to the provisions of Subsection B.1 or B.2 .a , shall test for compliance upon initial installation and then not less than once every 48 months. The first source test on this test schedule shall be 48 months after the last source test conducted prior to September 11, 2012

.

c d

. All units subject to emission limits shall perform an annual screening analysis of NOx and CO emissions unless a source test specified in either

Subsection B. 4 .a
, or B. 4 .b , or B.4.c is required that year

. The deadline for performing this annual screening is no later than the yearly anniversary

date of the last source test. The operator shall notify the AP CD by telephone , fax, or email, 24 hours prior to any screening analysis.

C. Exemptions

1. The provisions of Section B of this rule shall not apply to any unit operated on alternate fuel under the following conditions:June 23 , 2015 Revision RULE 74 .15.1 : 3 1. a. Alternate fuel use is required due to the curtailment of natural gas service to the individual unit by the natural gas supplier. Alternate fuel use in this case shall not exceed the period of natural gas curtailment.

2. b. Alternate fuel use is required to maintain the alternate fuel system. Alternate fuel use in this case shall not exceed 50 hours per year.

2. The emission limits in Subsection B.1 shall not apply to a ny portable oil well dewaxing process heater i f the annual heat input rate is less than 2. 8 x 10 9 BTU

.

D. Recordke eping Requirements

1. Any person owning and/or operating a boiler, steam generator, or process heater with an annual heat input rate of less than 1.8 2.8 x 10 9 BTU and not complying

with subject to the requirements of Subsection B.1 shall install a totalizi ng fuel meter for each applicable unit and for each fuel. Meters shall be accurate to ± one (1) percent, as certified by the manufacturer in writing. Fuel consumption for each unit shall be compiled monthly into a rolling twelve (12) calendar month

repor t.

2. Any person subject to the provisions of Subsection B.3.a shall submit a report to the Air Pollution Control Officer (APCO) within forty

- five (45) days after achieving first compliance with Subsection B.3.a

. R eports shall continue to be

submitted ev ery twelve (12) months. The report shall verify that each tune

- up has been performed and the results were satisfactory. The report shall contain all information and or documentation that the APCO may determine, in writing, to be

necessary.

3. Any person subject to the provisions of Subsection B. 4

. c d shall submit a report to

the APCO within forty

- five (45) days after first achieving compliance with the

s ubsection. Reports shall continue to be submitted every twelve (12) months. The report shall contain all information and or documentation that the APCO may determine, in writing, to be necessary. Any person subject to the provisions of

Subsection B.4. d

, shall record the result s of all screening s in an annual test log

, and this log shall be made available to APCD personnel upon request. This log shall indicate the date of the screening, the NOx and CO emissions measured at 3% Oxygen (calculated as NO 2 ), the applicable NOx and CO limit s for the unit,

and any action taken, if applicable

.

4

. Any person util izing alternate fuel, pursuant to the provisions of Subsection C.1 of this rule, shall maintain daily records of each occurrence. Each record shall include the type of fuel, the quantity of fuel, and the duration of the occurrence.

5

. All records require d by Subsection s D .1 and D.4 shall be maintained for a period of four (4) years and shall be available for inspection by the APCO upon request.June 23 , 2015 Revision RULE 74 .15.1 : 4

E. Test Methods

1. Compliance with the emission requirements in Section B shall be determined using ARB Method 100 for Oxides of Nitrogen, Carbon Monoxide, and Stack Gas Oxygen. An alternative procedure for determining emission compliance in units

of lb/MMBTU heat input shall be determined using the South Coast AQMD “Compliance Protocol for the Measurement of Nitr ogen Dioxide, Carbon Monoxide, and Oxygen From Sources Subject to SCAQMD Rules 1146 and

1146.1 ” dated March 10, 2009.

2. Emission tests resulting in compliance determinations for the requirements of

Subsection B.1 or B. 2 shall be conducted on units in "As

- found" operating

condition.

3. The NOx parts per million emission limitat ion specified in Subsection B.1 and

B.2 is expressed as nitrogen dioxide. The limitations for both NOx and CO are referenced at three (3) percent volume stack gas oxygen on a dry b asis averaged

over 15 consecutive minutes.

4. Screening analyses required pursuant to Subsection B.4. c d shall be performed using a portable analyzer calibrated, maintained, and operated in accordance with the manufacturer’s specifications or as approved in writing by the APCO. Portable analyzer operators shall undergo training, on the operation and maintenance of the analyzer.

F. Violations

1. Failure to comply with any provision of this rule shall constitute a violation of this

rule.

2. Any unit sub

ject to the provisions of Subsection B.3 shall comply with the provisions of Subsection B.1 if the unit operates during any rolling twelve (12) month period at a total annual heat input rate greater than the applicable annual heat input rate specified in S ubsection B.3

.

3. Any unit previously operating at an annual heat input rate of less than 0.3 x 10 9
BTU shall comply with the applicable provisions of Subsection B.1 or Subsection

B.3 if the unit operates during any rolling twelve (12) month period at a t otal annual heat input rate greater than 0.3 x 10 9 BTU.

4. An applicable unit shall be in violation if, according to a screening analysis, it is operated out

- of

- compliance with the requirements of either S ubs ection B .1 or B.2

as follows

. A n All out

- of

- com pliance screening analys i e s shall be reported to the District within seven (7) calendar days. The unit shall be corrected and a s econd screening analysis or source test shall be performed within fourteen (14) calendarJune 23 , 2015 Revision RULE 74 .15.1 : 5 days of the initial screening analysi s. T he results of the second analysis shall be reported to the District within seven (7) days . If the unit remains out

- of

compliance, a violation has occurred.

G. Definitions

1. "Alternate Fuel": Any fuel that is not natural gas permitted to be used due to natural gas curtailment by the natural gas supplier because of limited availability

.

2

. “Atmospheric Unit”: Any natural gas or produced oilfield gas fired unit with a

non

- sealed combustion chamber in which natural draft is used to exhaust

combustion gases.

2

. 3 "Annual Heat Input": The actual amount of heat released by fuels burned in a unit during a twelve (12) calendar month rolling period, based on the fuel's higher heating value. The annual heat input shall be calculated as the sum of the previou s 12 monthly fuel use rates multiplied by the fuel's higher heating value.

4

. “Biogas”: A gaseous mixture of methane and carbon dioxide produced by the bacterial decomposition of organic waste and used as a fuel, including

, but not

limited to

, digester g as.

3

. 5 "Boiler or Steam Generator": Any external combustion equipment fired with liquid and/or gaseous fuel and used to produce steam or to heat water. Boiler or Steam Generator does not include any unfired waste heat recovery boiler that is

used to rec over sensible heat from the exhaust of any combustion equipment.

6

. “ Landfill Gas”: Any gas derived through any biological process from the decomposition of waste buried within a waste disposal site.

7

. “Liquefied Petroleum Gas (LPG) ”: An organic compo und having a vapor pressure not exceeding that allowed for commercial propane that is composed predominantly of the following hydrocarbons, either by themselves or as mixtures: propane, propylene, butane, and to a lesser extent butylenes, and that is

stor ed and transported under pressure in a liquid state.

8

. “Natural Gas”: Any mixture of gaseous hydrocarbons containing at least 80 percent methane by volume, as determined using Standard Method ASTM D1945

- 03(2010) or later revision

.

9

. "New or Replacemen t Boiler, Steam Generator, or Process Heater ": Any applicable unit sold, offered for sale, or installed after January 1, 2013

, pursuant to
Subsection B.2 .a or after January 1, 2016

, pursuant to Subsection B. 2.b

.

1 0

. “Open Heated Tank”: Any non

- pressuriz ed self

- heated tank that may include a cover or doors that can be opened or detached to put in or remove parts,June 23 , 2015 Revision RULE 74 .15.1 : 6 components or other material for processing in the tank. Tanks heated solely by an electric heater, boiler, thermal fluid heater, or heat recov ered from another process using heat exchangers are excluded from this definition.

11. “Portable Oil Well Dewaxing Process Heater”: Any portable process heater mounted on a truck or trailer that is used to heat and circulate fluid (usually crude oil) aro und oil well production tubing or oil flow lines to remove paraffin wax (a natural occurring constituent of crude oil) to prevent loss of oil production caused by wax plugging of the unit.

1 2

. “Pressurized Unit”: Any unit that does not meet the criteria needed to qualify as an atmospheric unit.

5

. 1 3

. "Process Heater": Any external combustion equipment fired with liquid and/or gaseous fuel and which transfers heat from combustion gases to water or process

streams. For the purpose of rule applicability, P p rocess H h eater does not include any of the following combustion sources :

a. a ny k K iln

, or oven
, open heated tank, dehydrator, dryer, crematory, incinerator, calciner, cooker, roaster, or furnace. used for drying, baking, cooking, calcining or vitrifying

, b. a ny u U nfired waste heat recovery heater that is used to recover sensible heat from the exhaust of any combustion equipment,

or c. a ny f

F uel

- fired degreasing or metal finishing equipment including parts washers and metal heat treating or metal furnaces,

d. Afterburner, vapor incinerator, or t hermal or catalytic oxidizer s used as an

emission control device.

e

. G lass melting furnace

, f. T enter frame

, fabric or carpet dryer

.

1 4

. “Produced Oilfield Gas”: Any mixture of gaseous hydrocarbons produced in the

oil field containing less than 80 percent methane by volume

, as determined using

Standard Method ASTM D1945

- 03(2010) or later revision.

6

. 1 5

. "Rated Heat Input Capacity": The heat input capacity specified on the nameplate

of the combustion unit. If the c ombustion unit has been altered or modified such that its maximum heat input is different than the heat input capacity specified on the nameplate, the new maximum heat input shall be considered as the rated heat input capacity. This alteration or modifica tion can be through either burner

alteration or modification or installation of a fixed orifice. The new maximum heat input must be certified, in writing, by the manufacturer or installer and engineering calculations supporting the new maximum heat input rating must be

submitted to the APCO.

1 6

. “Tenter Frame Dryer”: Any cloth dryer that hold the edges of the material as it is

dried in order to control shrinkage.June 23 , 2015 Revision RULE 74 .15.1 : 7

7

. 1 7

. "Therm": 100,000 BTU.

8

. 1 8

. "Unit": Any boiler, steam generator, or process heater a s defined in Subsections

G. 2 5 , G. 9

, and G. 3 1 3 of this rule.