CALIFORNIA AIR RESOURCES BOARD

APCD/AQMD RULE EVALUATION FORM -- Page 1

(Electronic Format)

I. GENERAL INFORMATION

District: Imperial County Air Pollution Control District

Rule No(s): 400.1 Date adopted/Amended/Rescinded: 02/23/2010

Rule Title(s): Stationary Gas Turbine(s)-Reasonably Available Control Technology (RACT)

Date Submitted to ARB: March 15, 2010

If an Amended Rule, Date Last Amended (or Adopted): N/A

Is the Rule Intended to be Sent to the U.S. EPA as a SIP Revision? Yes No (If No, do not complete remainder of form)

District Contact: Monica N. Soucier Phone Number: (760) 482-4606 E-mail Address: monicasoucier@co.imperial.ca.us

Narrative Summary of New Rule or Rule Changes: New Rule Amended Rule

Rule 400.1 Stationary Gas Turbine(s)-Reasonably Available Control Technology (RACT) requires stationary gas 

turbine operators to comply with new NOx standards of 42 parts per million by volume (ppmv) for gaseous fuelfired units and 65 ppmv liquid fuel-fired units. Units must have a rated heat input capacity of 1 Megawatt (MW) or 

more. Once implemented the rule will affect seven stationary gas turbines at four Imperial County major source 

facilities all belonging to the Imperial Irrigation District (IID). These facilities cover the northern and middle portion 

of Imperial County, Niland, Brawley and El Centro.

Pollutant(s) Regulated by the Rule (Check): ROG (NOx) SO2

(CO) PM TAC (name):

II. EFFECT ON EMISSIONS

Complete this section ONLY for rules that, when implemented, will result in quantifiable changes in emissions. Attach reference(s) for emission factor(s) 

and other information. Attach calculation sheet showing how the emission information provided below was determined.

Net Effect on Emissions: Increase Decrease N/A

Emission Reduction Commitment in SIP for this Source Category: N/A

Inventory Year Used to Calculate Changes in Emissions: N/A Area Affected: N/A

Future Year Control Profile Estimate (Provide information on as many years as possible):

N/A
CALIFORNIA AIR RESOURCES BOARD

APCD/AQMD RULE EVALUATION FORM -- Page 2

(Electronic Format)

Baseline Inventory in the SIP for the Control Measure: N/A

Emissions Reduction Commitment in the SIP for the Control Measure: N/A

Revised Baseline Inventory (if any): N/A

Revised Emission Reduction Estimate (if developed): N/A

Note that the district’s input to the Rule Evaluation Form will not be used as input to the ARB’s emission forecasting and 

planning.

III. SOURCES/ATTAINMENT STATUS

District is: Attainment Nonattainment Split

Approximate Total Number of Small (<100 TPY) Sources Affected by this Amendment: 445

Percent in Nonattainment Area: 100%

Number of Large (> 100 TPY) Sources Controlled: 2 Percent in Nonattainment Area: 100%

Name(s) and Location(s) (city and county) of Large (> 100 TPY) Sources Controlled by Rule (Attach additional sheets as 

necessary): Imperial Irrigation District (Rockwood), Niland, Imperial County; Imperial Irrigation DIstrict (El Centro Generating 

Station), EL Centro, Imperial County

IV. EMISSION REDUCTION TECHNOLOGY

Does the Rule Include Emission Limits that are Continuous? Yes No

If Yes, Those Limits are in Section(s) C of the Rule.

Other Methods in the Rule for Achieving Emission Reductions are: Compliance with the NOx emission limits in Section C 

shall be determined using United States Environmental Protection Agency (U.S. EPA) Method 7, 7A, 7C, 7E, California 

Air Resources Board (CARB) Method 100, or any other applicable EPA approved test method.

V. OTHER REQUIREMENTS

The Rule Contains:

Emission Limits in Section(s): C Work Practice Standards in Section(s): N/A

Recordkeeping Requirements in Section(s): H Reporting Requirements in Section(s): H
CALIFORNIA AIR RESOURCES BOARD

APCD/AQMD RULE EVALUATION FORM -- Page 3

(Electronic Format)

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VI. IMPACT ON AIR QUALITY PLAN

 No Impact Impacts RFP Impacts attainment

Discussion: Since all existing sources affected by Rule 400.1 will be able to comply without additional installation of 

technology a substantial change in the emissions inventory for these facilities is not anticipated.