SACRAMENTO METROPOLITAN AIR QUALITY MANAGEMENT DISTRICT

RULE 458 - LARGE COMMERCIAL BREAD BAKERIES
(Adopted 6-7-94; Amended 9-5-96)


INDEX

100 GENERAL

200 DEFINITIONS

300 STANDARDS

400 ADMINISTRATIVE REQUIREMENTS

500 MONITORING AND RECORDS


100 GENERAL

101 PURPOSE: To limit the emission of volatile organic compounds from bread ovens at large commercial bread bakeries.

110 EXEMPTION, SMALL BAKERIES: This rule shall not apply to bakeries whose total VOC emissions for each and every operating day are less than 100 pounds, as determined by Section 405.

111 EXEMPTION, CHEMICALLY LEAVENED PRODUCTS: This rule does not apply to equipment used exclusively for the baking of bakery products leavened chemically in the absence of yeast.

200 DEFINITIONS

201 BREAD: A perishable foodstuff prepared from a yeast-leavened dough which is baked into products commonly referred to as pan bread, buns, rolls, or other similar yeast-leavened products.

202 EXEMPT COMPOUND: For the purposes of this rule, "exempt compound" has the same meaning as in Rule 101—GENERAL PROVISIONS AND DEFINITIONS.

203 LARGE COMMERCIAL BREAD BAKERY: Any bakery producing equal to or more than 100 pounds of VOC per operating day.

204 LEAVEN: To raise a dough by causing gas to thoroughly permeate it through the use of a chemical agent such as baking powder or a fermentation-producing agent such as yeast.

205 OVEN: An enclosed compartment supplied with heat, typically from the combustion of natural gas, used to bake bread, buns, and rolls. This does not include proofing boxes.

206 PROOFING BOX: A warm (typically about 100o F), humid chamber where yeast-leavened dough is allowed to rise to the volume desired for baking.

207 VOLATILE ORGANIC COMPOUND (VOC): For the purposes of this rule, "volatile organic compound" has the same meaning as in Rule 101—GENERAL PROVISIONS AND DEFINITIONS.

300 STANDARDS

301 EMISSION CONTROL REQUIREMENTS, NEW AND EXISTING OVENS: All ovens shall vent emissions to a control system meeting the following standards:

400 ADMINISTRATIVE REQUIREMENTS

401 OPERATION AND MAINTENANCE PLAN: Any person required to use an emissions control device pursuant to Section 301 must submit an Operation and Maintenance Plan for the emissions control device to the Air Pollution Control Officer for approval. The Plan shall specify operation and maintenance procedures which will demonstrate continuous operation of the emissions control device, pursuant to Section 301, during periods of emissions- producing operations. The Plan shall also specify which daily records must be kept to document these operation and maintenance procedures. These records shall comply with the requirements of Sections 501.1 and 501.2. The Plan shall be implemented upon approval by the Air Pollution Control Officer.

402 PROCEDURE FOR PROCESSING OPERATION AND MAINTENANCE PLAN:

403 COMPLIANCE SCHEDULE:

404 CALCULATION FOR VOC MASS EMISSION RATE AND PERCENT CONTROL EFFICIENCY: The VOC mass emission rate shall be calculated both upstream and downstream of the emissions control device based on the respective VOC mass concentration and volumetric flowrate, pursuant to Section 502.1 and the following equation:

The percent control efficiency is calculated as follows:

405 CALCULATION FOR SMALL BAKERIES EXEMPTION: VOC emissions to determine exemption status pursuant to Section 110 of this rule shall be calculated using the following equation:

500 MONITORING AND RECORDS

501 USAGE RECORDS: In addition to any existing permit conditions issued pursuant to Rule 201, any person subject to this rule shall comply with the following requirements:

502 TEST METHODS