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Fact Sheet, December 2008 <br /> Department of Requirements for Generators of <br /> Toxic Substances <br /> Control Treated Wood Waste (TWW) <br /> What is Treated Wood Waste (TWW)? <br /> TWW is wood commonly used in ground or water contact applications that has been <br /> removed from service. This wood is typically treated with preserving chemicals that <br /> Our Mission is protect the wood from insect attack and fungal decay during its use. Examples <br /> to provide the include fence posts, sill plates, landscape timbers,pilings, guardrails, and decking. <br /> What are the Health and Environmental Hazards? <br /> highest level of TWW contains hazardous chemicals that pose a risk to human health and the <br /> safety, and to environment. Arsenic, chromium, copper, creosote, and pentachlorophenol are among <br /> the chemicals added to preserve wood. These chemicals are known to be toxic or <br /> protect public carcinogenic. Harmful exposure to these chemicals may result from dermal contact with <br /> TWW, or from inhalation or ingestion of TWW particulate (e.g., sawdust and smoke). <br /> health and the What are the Hazardous Waste/Alternative Management Standards <br /> environment <br /> (AMS)? <br /> Because TWW contains hazardous chemicals, at elevated levels, it is subject to <br /> from toxic California's Hazardous Waste Control Law. The Department of Toxic Substances <br /> Control (DTSC)has developed alternative management standards (AMS) for TWW that <br /> harm. are based upon full hazardous waste requirements but are adjusted for the unique <br /> circumstances associated with TWW. The AMS is in California Code Regulations (Cal. <br /> Code Regs.)title 22, division 4.5, chapter 34. In summary,AMS lessen storage <br /> requirements, extend accumulation periods, allow shipments without a hazardous waste <br /> manifest and a hazardous waste hauler, and allow disposal at specific non-hazardous <br /> waste landfills. The AMS simplify and facilitate the safe and economical disposal of <br /> TWW. (Note -TWW that is removed from utility services or is a RCRA hazardous <br /> waste is not eligible for AMS.) <br /> What are the Handling and Disposal Requirements for TWW? <br /> The AMS,which went into effect on July 1,2007, are intended to ease regulatory <br /> burdens. Although hazardous waste generators are required to properly classify their <br /> waste through knowledge or laboratory analysis,generators of TWW can presume their <br /> State of California TWW is hazardous waste and avoid expensive laboratory testing. Generators can then <br /> manage their waste in accordance with the AMS, including disposal at certain non- <br /> hazardous waste landfills. Upon acceptance at these certain landfills,the TWW, at that <br /> point,becomes non-hazardous waste pursuant to Health and Safety Code section <br /> a 1 25150.8. Specific generator requirements for households, small business, and all others <br /> are presented in the following sections: <br /> California <br /> Environmental <br /> Protection Agency <br /> y <br />