EEA Database on Distributed Generation – San Joaquin Valley Unified Air Pollution Control District

AIR EMISSIONS REGULATIONS:

Air Quality Status	Serious nonattainment for ozone. Nonattainment with PM2.5 standards . The EPA recently redesignated the San Joaquin Valley air basin to attainment for PM-10. (APCD is all of Fresno, Kings, Madera, Merced, San Joaquin, Stanislaus, Tulare, and the western portion of Kern counties) EPA's Nonattainment Areas
Major Source Threshold	10 tons of NOx or Reactive Organic Compounds (ROCs); complying with Regulation VIII reduces PM10 emissions to less than significant, 100 tons of CO triggers NSR
Minor Source Permitting Exemption	A unit that emits less than 2lbs/day
Minor Source Treatment	BACT
Emergency Generating Limits	Based on Rated Brake Horsepower (bhp), and PM standards

DE MINIMIS EXEMPTIONS (Must meet 1298)

Piston type internal combustion engines 50 hp or less; or gas turbines with a maximum heat input rating of 3 MMBtu/hr or less are exempt from permitting. Low emitting units – those that emit less than 2 lbs/day or 75 lbs/yr of air contaminants are exempt from obtaining construction or operating permits. Exempt units are outlined in Rule 2020.

MINOR SOURCE PERMITTING

Any units with a potential to emit greater than 2 pounds per day of any criteria pollutant must complete BACT for all critera pollutants. The air district maintains a clearinghouse with examples of recent BACT requirements. More information on the district’s BACT requirements can be found here.

The BACT cost effectiveness thresholds in dollars per ton, currently being used by the SJVAPCD (as of May 2008) to determine if a technologically feasible control technology is cost effective are as follows -

Pollutant	Dollars per Ton
VOC:	$17,500
NOx:	$24,500
PM-10:	$11,400
SOx:	$18,300
CO:	$300

Stationary gas turbines must comply with the following tiered emission limits.

Tier 1 NOx Compliance Limits

Stationary Gas Turbine Rating	Operating hours per year (see section 5-1)	NOx Compliance Limit ppmv at 15% O2
		Gas	Oil
4 MW and greater	less than 877	42	65
> 0.3 MW but < 10.0 MW	greater than or equal to 877	42	65
10.0 MW and greater, without SCR	greater than or equal to 877	15 x EFF/25	42 x EFF/25
10.0 and greater, with SCR	greater than or equal to 877	9 x EFF/25	25 x EFF/25
General Electric Frame 7 with Quiet Combustors	Not applicable	18 x EFF/25	42 x EFF/25
Solar Saturn 1100 horsepower gas turbine powering centrifugal compressor	Not applicable	50	50

Tier 2 NOx Compliance Limits

Turbine Classification Rating	Compliance Option (see section 5-2)	NOx Compliance Limit ppmvd at 15% O2
		Gas Fuel	Liquid Fuel
Less than 2.0 MW Solar Saturn, driving a centrifugal compressor	Standard	50	50
No greater than 10 MW, if a DLN System is commercially available for the specific unit, as of April 30, 2003	Standard	25	65
No greater than 10 MW, if a DLN System is not commercially available for the specific unit, as of April 30, 2003	Standard	35	65
Greater than 10 MW, Combined cycle	Standard	5	25
	Enhanced	3	25
Greater than 10 MW, Simple cycle, and permit condition for greater than 877 hrs/yr operation	Standard	5	25
	Enhanced	3	25
Greater than 10 MW, Simple cycle, and permit condition for no greater than 877 hr/yr operation	Standard	25	42
	Enhanced	5	25

Tier 3 NOx Compliance Limits

Turbine Classification Rating	NOx Compliance Limit ppmvd at 15% O2
	Gas Fuel		Liquid Fuel
Less than 3 MW	9		25
3 MW to 10 MW pipeline gas	8 during steady state and 12 during non-steady state	25
3 MW to 10 MW and permit condition for less than 877 hrs/yr operation and not listed above	9	25
3 MW to 10 MW and permit condition 877 hrs/yr operation or greater and not listed above	5	25
Greater than 10 MW, simple cycle, and permit condition for no greater than 200 hrs/yr operation except as provided in Section 5.1.3.3	25	42
Greater than 10 MW, Simple cycle, and permit condition for greater than 200 hrs/yr but no greater than 877 hrs/yr	5	25

CO Compliance Limits

Stationary Gas Turbine	CO Compliance Limit, ppmv at 15% O2
Units not identified below	200
General Electric Frame 7	25
General Electric Frame 7 with Quiet Combustors	52
Less than 2.0 MW Solar Saturn gas turbine powering centrifugal compressor	250

TREATMENT OF EMERGENCY ENGINES

Emergency engines must be permitted. The state has just issued new regulations concerning emergency generators entitled, The Airborne Toxic Control Measure for Stationary Compression Engines. Also, see the following document, which outlines limits applied to emergency generators in the District.

San Joaquin Valley Unified Air Pollution Control District-CALIFORNIA