DEPARTMENT OF ENVIRONMENTAL CONSERVATION 

Standard Operating Permit Condition XI – SO2 Emissions 

From Oil Fired Fuel Burning Equipment 

Permit Condition for Air Quality Permits 

Adopted by Reference in 18 AAC 50.346 

April 1, 2002 

REVISED August 25, 2004
Standard Operating Permit Condition XI – 

SO2 Emissions From Oil Fired 

Fuel Burning Equipment 1 April 1, 2002 

Revised August 25, 2004

Standard Operating Permit Condition XI – SO2 Emissions from Oil 

Fired Fuel Burning Equipment 

Emission Unit [SOURCE] or Stationary Source [FACILITY] Categories This 

Condition Applies to: Any fuel burning equipment using liquid fuel. 

The department will use standard permit condition XI in any operating permit unless the 

department determines that emission unit [SOURCE] or stationary source [FACILITY] 

specific conditions more adequately meet the requirements of 18 AAC 50. 

Circumstances where emission unit [SOURCE] or stationary source

[FACILITY] specific conditions more adequately meet 18 AAC 50 include: 

1. if an alternate monitoring plan for sulfur emissions has been approved for the 

equipment under a New Source Performance Standard; 

2. at a petroleum refinery; 

3. if an alternative plan for sulfur emissions is approved for the equipment 

under a construction permit. 

Permit Wording: 

1. Sulfur Compound Emissions. In accordance with 18 AAC 50.055(c), the permittee shall 

not cause or allow sulfur compound emissions, expressed as SO2, from <insert 

identification of emission units [SOURCES]> to exceed 500 ppm averaged over three 

hours. 

2. Sulfur Compound Emissions – Monitoring and Record Keeping. 

2.1 The permittee shall do one of the following for each shipment of fuel: 

a. if the fuel grade requires a sulfur content less than 0.5% by weight, keep 

receipts that specify fuel grade and amount; or 

b. if the fuel grade does not require a sulfur content less than 0.5% by weight, 

keep receipts that specify fuel grade and amount and 

(i) test the fuel for sulfur content; or 

(ii) obtain test results showing the sulfur content of the fuel from the supplier 

or refinery; the test results must include a statement signed by the supplier 

or refinery of what fuel they represent. 

2.2 Fuel testing under condition XI.2.1 must follow an appropriate method listed in 18 

AAC 50.035 or another method approved in writing by the department. 
Standard Operating Permit Condition XI – 

SO2 Emissions From Oil Fired 

Fuel Burning Equipment 2 April 1, 2002 

Revised August 25, 2004

2.3 If a load of fuel contains greater than 0.75% sulfur by weight, the permittee shall 

calculate SO2 emissions in PPM using either condition <insert cross reference to 

standard permit condition XII - SO2 material balance calculation> or Method 19 of 

40 C.F.R. 60, Appendix A-7, adopted by reference in 18 AAC 50.040(a). 

3. Sulfur Compound Emissions – Reporting. The permittee shall report in accordance with 

this condition XI.3. 

3.1 If SO2 emissions are calculated under condition XI.2.3 to exceed 500 ppm, the 

permittee shall report under condition <insert cross reference to standard permit 

condition III - excess emissions and permit deviation reports>. When reporting 

under this condition XI.3.1, include the calculation under condition <insert cross 

reference to standard permit condition XII - SO2 material balance calculation>. 

3.2 The permittee shall include in the report required by condition <insert cross 

reference to standard permit condition VII - operating reports> 

a. a list of the fuel grades received at the stationary source [FACILITY] during 

the reporting period; 

b. for any grade with a maximum fuel sulfur greater than 0.5% sulfur, the fuel 

sulfur of each shipment; and 

c. for fuel with a sulfur content greater than 0.75%, the calculated SO2 emissions 

in PPM. 

4. Sulfur Compound Emissions – North Slope – Monitoring, Record Keeping, and 

Reporting. For liquid fuel from a North Slope topping plant, the permittee shall obtain 

from the topping plant the results of a monthly fuel sulfur analysis. 

4.1 The permittee shall include in the report required by condition <insert cross 

reference to standard permit condition VII - operating reports> a list of the sulfur 

content measured for each month covered by the report. 

4.2 The permittee shall report under condition <insert cross reference to standard permit 

condition III - excess emissions and permit deviation reports> if the sulfur content 

for any month exceeds 0.75%. 

The following applies to this standard permit condition: 

The department will include condition XI.4 only in the permit for a North Slope facility that 

receives fuel from one of the North Slope topping plants.