COMPLIANCE INFO 1981-2000 - Laserfiche WebLink

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' 3 ��• SPECIAL CONDITIONS 1. Storage in tanks. (a) Each hazardous waste storage tank situated above ground shall have a spill confinement structure (e.g. , dike or trough) capa- ble of holding the entire contents of the tank plus sufficient freeboard. (b) Hazardous waste storage tanks shall be constructed of materials which are compatible with the wastes to be contained or shall be protected by liners which are compatible with those wastes. (c) Prior to use, hazardous waste storage tanks and their appurte- nances shall be certified by an engineer registered in California to be structurally sound and of adequate construction for the intended use. (d) Each hazardous waste storage tank and storage area shall be individually marked with the internationally recognized hazard identification system placards developed by the National Fire Prevention Association (NFPA) . (e) Valves on hazardous waste storage tanks shall be kept locked when the facility is unattended. 2. Storage in containers. (a) Containers used for storing hazardous waste shall be in a condi- tion such that the containers can be safely transported, handled or moved. (b) Areas used for storing containers of hazardous waste shall be widely separated, or physical barriers shall be provided to ensure that commingling of incompatible hazardous wastes cannot occur if a container on one pad ruptures. (c) A label shall be maintained on all containers in which hazardous wastes are stored for 90 days or more and records for the storage of all hazardous wastes shall be maintained pursuant to Section 66545, Title 22 of the California Administrative Code. Labels shall include the following information: (1) Composition and physical state of the waste; (2) Special safety recommendations and precautions for handling the waste;