SACRAMENTO METROPOLITAN AIR QUALITY MANAGEMENT DISTRICT

RULE 446 - STORAGE OF PETROLEUM PRODUCTS
(Adopted 6-1-74; Amended 6-1-74, 8-3-77, 11-29-83, 12-4-90, 11-16-93)


INDEX

100 GENERAL

200 DEFINITIONS

300 STANDARDS

400 ADMINISTRATIVE REQUIREMENTS

500 MONITORING AND RECORDS


100 GENERAL

101 PURPOSE: To limit emissions from storage tanks for organic liquids with a vapor pressure greater than 1.5 psia (10.3 kPa) under actual storage conditions.

110 EXEMPTIONS: This rule shall not apply to emissions from:

200 DEFINITIONS

201 EFFICIENCY: A comparison of controlled emissions to those emissions which would occur from a fixed or cone roof tank in the same product service without a vapor loss control system. Baseline emissions shall be calculated using the criteria in American Petroleum Institute Bulletin 2518.

202 GAS TIGHT: A concentration of total organic compounds, measured one (1) cm from any source, which does not exceed 10,000 ppm (expressed as methane) above background, as determined by a method specified in Section 502.3.

203 ORGANIC LIQUID: Compounds and mixtures of compounds of carbon which are liquid under actual storage conditions.

300 STANDARDS

301 CONTAINERS LARGER THAN 150,000 LITERS (40,000 GALLONS): A person shall not store organic liquid in any stationary container of more than 150,000 liters (40,000 gallons) capacity, unless such container is:

311 FLOATING ROOF: The vapor loss control device may be a floating roof equipped with a closure device consisting of a floating pan-type roof or a pontoon-type or double-deck cover. All floating roofs must rest on the surface of the liquid contents.

312 INTERNAL FLOATING ROOF: The vapor loss control device may be a fixed roof with an internal floating-type cover.

313 VAPOR RECOVERY SYSTEM: The vapor loss control device may be a vapor recovery system capable of collecting and processing all organic vapors and gases and which meets the following requirements:

314 CLOSURE DEVICE REQUIREMENTS: The closure device on any floating roof container subject to Section 311 shall meet the following requirements:

315 METALLIC SHOE SEAL REQUIREMENTS: For any container which uses a metallic shoe seal to comply with Section 311, the seal shall meet the following requirements:

316 WELDED TANKS WITH METALLIC SHOE SEALS: For any welded tank shell which uses a metallic shoe seal to comply with Section 311, the seal shall meet the following requirements:

317 RESILIENT TOROID SEAL REQUIREMENTS: For any container which uses a resilient toroid seal to comply with Section 311, the seal shall meet the following requirements:

400 ADMINISTRATIVE REQUIREMENTS

401 INSPECTION, SELECTED LOCATIONS: The primary seal envelope shall be available for unobstructed inspection by the APCO on an annual basis at four locations selected along its circumference at random by the APCO. If the APCO detects one or more violations as a result of any such inspection, the APCO may require such further unobstructed inspection of the primary seal as may be necessary to determine the seal condition for its entire circumference.

402 INSPECTION, FULL CIRCUMFERENCE: For tanks with secondary seals installed after September 1, 1978, the primary seal envelope shall be made available for inspection by the APCO for its full length every 5 years after September 1, 1977, except that if the secondary seal is voluntarily removed by the owner or operator prior thereto, it shall be made available for such inspection at that time. The owner or operator shall provide notification to the APCO no less than 7 working days prior to voluntary removal of the secondary seal.

403 MAINTENANCE PLAN: Maintenance plans shall be submitted to the Air Pollution Control Officer at least thirty days prior to anticipated maintenance. The plan shall state the amount and type of emission anticipated, method of calculating emissions, and the reason that the work is necessary, including the effect of not performing the maintenance.

500 MONITORING AND RECORDS

501 RECORDS: A person storing organic liquids shall keep an accurate record of liquids stored, the true vapor pressure ranges, and the actual storage temperature of such liquids.

502 TESTING PROCEDURE: A result by any of the below listed test methods which shows non- compliance with any provision of the rule shall constitute a violation of the rule.