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HAZARDOUS WASTE TANK SYSTEM REQUIREMENTS FOR LARGE QUANTITY GENERATORS AND ONSITE TREATMENT FACILITIES For Use by Unidocs Member Agencies or where approved by your Local Jurisdiction Authority Cited: California Health and Safety Code(HSC); Title 22 California Code of Regulations(CCR) A. Scope Large Quantity Generators (LQG) of hazardous waste may accumulate hazardous waste in tanks on-site for 90 days or less without a hazardous waste treatment/storage/disposal facility (TSDF) Facility Permit from the Department of Toxic Substances Control (DTSC) provided that they comply with the tank system requirements in Article 10 of Chapter 15 of Division 4.5 of Title 22, California Code of Regulations (CCR), except for Section (§) 66265.197(c) and §66265.200. [22CCR§66262.34(x)] The requirements of Article 10 also apply to: ➢ Owners/operators of onsite treatment unit tank systems authorized under the following onsite hazardous waste "Tiered Permit"treatment tiers: ❑ Conditional Exemption(CE) if the facility is a large quantity generator; [HSC§25201.5(d)(9)] ❑ Conditional Authorization(CA) even if the facility is a small quantity generator; [HSC§25200.3(c)(4)] ❑ Permit-by-Rule (PBR) even if the facility is a small quantity generator. [22CCR§674503(c)(9)(F)] ➢ Tank systems holding Excluded Recyclable Material where no local ordinance regulates the storage of hazardous material and requires secondary containment of hazardous waste storage areas. [HSC§25143.9(c)] ➢ Tanks, sumps, and other collection devices used in conjunction with drip pads and regulated under Article 17.5 of Chapter 15 of Division 4.5 of Title 22, CCR. [22CCR§66265.190(c)] This document is intended for use by hazardous waste generators with tanks that are not permitted Treatment/Storage/Disposal Facility (TSDF) units. Additional requirements apply to TSDF's permitted tank systems. The requirements listed in this document are not all-inclusive. Other requirements including, but not limited to, those in California Fire Code and California underground storage tank(UST) law/regulations may also apply. The California Code of Regulations is available on the Internet at www.calregs.com; Health and Safety Code at www.leginfo.ca.gov/calaw.htmi; and the Code of Federal Regulations (CFR) at www.gpoaccess.gov/cfr/index.html. B. Definitions [22CCR§66260.10] For the purposes of this document, the following definitions apply: ➢ Acutely Hazardous Waste — Means any hazardous waste identified as an Acute Hazardous Waste in Article 4 of Chapter 11 of Division 4.5, Title 22, California Code of Regulations (CCR). ➢ Ancillary Equipment—Means any device including, but not limited to, such devices as piping, fittings, flanges, valves, and pumps that is used to distribute, meter or control the flow of hazardous waste from its point of generation to a storage or treatment tank, between hazardous waste storage and treatment tanks to a point of disposal onsite, or to a point of shipment for disposal offsite. ➢ Conditionally Exempt Small Quantity Generator (CESQG) — Means a hazardous waste generator who generates no more than 100 kilograms (220 pounds) of waste per month as defined in Title 40 of the Code of Federal Regulations (40 CFR) §261.5. ➢ Excluded Recyclable Material — Means a recyclable material excluded from classification as a waste pursuant to HSC §25143.2. UN-047-1/14 www.unidocs.org Rev.01/07/08