AIR RESOURCES BOARD

VENTURA COUNTY APCD RULE EVALUATION FORM

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I. GENERAL INFORMATION

District: Ventura County APCD Rule No.: 74. 15.1 Date A mended : J une 2 3, 2015

Rule Title: Boilers, Steam Generators, and Process Heaters

Date Submitted to ARB: July 1 4

, 20 1 5 If an Amended Rule, Date Last Amended: Sept 11, 2012

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

District Contact: Stan Cowen Phone No.: 805 /645

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Narrative Summary of Rule Changes: ( X ) Amended Rule : Amendments to Rule 74.15.1 will reduce NOx emissions from new or

replacement boilers, steam generators, and process heaters having a rated heat input capacity between 2 and 5 Million BTU per hour. New or

replaced boilers will be subject to source test s at least every four years, while annual screenings will continue. The applicability of the rule

has been extended to other gaseous fuels besides natural gas, and a new exemption from the 30 ppm existing NOx limit has been adopted for

portable oilfield dewaxing operations.

Pollutant(s) Regulated by the Rule (Circle): ROG NOx SO2 PM10 CO TAC

II. EFFECT ON EMISSIONS

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

information. Attach calculation sheet showing how the emissions information provided below was de termined. See staff report Appendix A for emission calculations.

Net Effect on Emissions: ( ) Increase ( X ) Decrease ( ) N/A No impact on emissions. See attached staff report for emission reduction

calculations. The net effect of the amended rule is to reduce NOx emissions by 9.32 tons per year.

II. EFFECT ON EMISSIONS

Emission Reduction Commitment in SIP (Control Measure) for this source category: 20 1 2 Triennial Assessment: New control measure with

em issions reductions to be determined.

Inventory Year Used to Calculate Changes in Emissions: 20 1 3 Area Affected: County

Future Year Control Profile Estimate:

Year Tons/year

Reductions 20 12 Baseline

Tons/year

Subject to Rule Control

Level Percent

Control Control

Level Con trol Factor

20 25 9.32 / 16.04

= 0. 58 * 100 = 58 % 1.00

- 0. 58

= 0. 42AIR RESOURCES BOARD

VENTURA COUNTY APCD RULE EVALUATION FORM

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III. SOURCES/ATTAINMENT STATUS

District is: ( ) Attainment (X) Nonattainment ( ) Split

Approximate Total Number of Small (<100 TPY) Sources Controlled by Rule: 66

Percent in No nattainment Area: 100 %

Number of Large (>100 TPY) Sources Controlled: None Percent in Nonattainment Area: Not Applicable

IV. EMISSION REDUCTION TECHNOLOGY

Do the Rule s Include Emission L imits that are Continuous? Yes.

V. OTHER REQUIREMENTS

RULE 74. 15.1 (Boilers, Steam Generators, and Process Heaters) Requirements include:

E mission Limits : Section B

Testing Requirements : Section B

Recordkeeping : Section D

Test Methods: Section E

Exemptions: Section C

Enforcement Procedures Section F

VI. IMPACT ON AIR QUALITY PLAN

(X) No Impact ( ) Impacts RFP ( ) Impacts attainment

Discussion: Amendments to Rule 74.15.1 will reduce NOx emissions for Ventura County’s efforts toward achieving attainment of

the ozone standard. Therefore, RFP will be furthered by amendments to Rule 74.15.1

.