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MInnmeti Ponutlon Control Agonev <br />biking or walking. Here are ways to decrease used oil< <br />related wastes; <br />• Use drain systems designed for used oil. <br />• Use drip pans to capture vned oil drips and spills. <br />• Pick up used-oil spilled outside of drip pans in <br />liquid form by using a dustpan and squeegee <br />(rather than using sorbents and generating another <br />waste). <br />• If sorbents must be used, choose those that can be <br />recycled, that is. wrung and reused, laundered or <br />cleaned or burned for energy. <br />• When possible, purchase product in bulk to <br />eliminate multiple small plastic containers. <br />• If using plastic quart containers, design a drain <br />system to empty them sufficiently to allow the <br />plastic to be recycled. <br />Containment* Storage and Labeling <br />Before storing filters, drain them well or process them <br />to remove all free-flowing oil. Processing includes <br />crushing or dismantling the filters to separate the metal <br />from the paper portion. (Before crushing, check with <br />the filter hauler you intend to use to make sure crushed <br />filters tvill be accepted.) Place collected oil in the used <br />oil-storage container destined for recycling. <br />Before storing sorbents, remove all free liquid. Place <br />collected oil in the used oil-storage container destined <br />for recycling. <br />Store used oil, used-oil filters, paper removed from <br />used-oil filters and used oil-contaminated sorbents in <br />closed, leak-proof tanks or containers. (Containers <br />receiving used oil directly from filter crushing <br />equipment or oil-water separation equipment may have <br />an opening sufficient to receive that oil.) Paper filter <br />media and combustible sorbents may be combined in the <br />same container provided they will be disposed of in the <br />same way. <br />Mark containers (including used-oil tartks and tank fill <br />pipes) to appropriately identify the contents: Used Oil <br />[Filters, Filter-Paper Media, or Sorbents]. Do not <br />mark containers of used oil destined for recycling with <br />the words "Hazardous Waste." <br />Place containers on a sur&ce diat is reasonably <br />impervious to used oil (Minn. Rules 7045.0855 Subp. 2). <br />Asphalt that is in good condition may qualify as <br />‘‘reasonably impervious" for awhile; however, oil will <br />Hazardous Waste #4.30, September 1999 <br />break down the asphalt, allowing it to filter through. If <br />solvents, fuels or gasoline are present in the used oil, the <br />rate of breakdown increases. Sealing an asphalt and <br />concrete surface or using a secondary con tainment <br />system designed for used oil provides better protection <br />and may reduce the possibility of releases and their <br />related liability. <br />TIP: When possible, store used-oil ' <br />containers indoors to prevent releases caused <br />by rain seeping into closed containers and <br />displacing the oil. <br />Storing in Tanks <br />All tanks (including fill pipes) must be labeled as <br />outlined above. If using almve-ground storage tanks <br />(ASTs) and underground storage tanks (USTs) larger <br />than 110 gallons to store used oil, they must he <br />registered with the MPCA. For additional requirements, <br />refer to Table 1. <br />For more information, call the Tanks Hotline or access <br />the MPCA Web site at httD://www.nca.state.mn.ua. At <br />the site, click on Programs, then Aboveground <br />Storage Tank Systems or Storage Tank Compliance <br />and Assistance Program for more information. <br />The Minnesota Uniform Fire Code (MUFC) Article 79 <br />and Article 80 contain provisions relating to the storage <br />and contaimnent of combustible liquids. Contact the <br />State Fire Marshal Division for requirements specific to <br />your operation. <br />Mixing <br />Do not mix antifreeze, chlorinated solvents (such as <br />many carburetor or brake cleaners), gasoBne, engine <br />degreasers, paint thinners or anything else with used <br />olL Used oil that has other waste mixed with it must be <br />evaluated (tested). The mixture may be a hazardous <br />waste. <br />TIP; To prevent inadvertent mixing and the <br />increased disposal costs diat often result, <br />separate used-oil rontainen from solvent and <br />other waste jontainers in your storage area. <br />Mark the containers! <br />One exception regarding mixiag — Very Small <br />Quantity Generators (dtose producing less dian 220 <br />pounds — about 22 gallons liquid—of hazardous <br />waste per month) may mix petroleum-based parts <br />Managing Used Oil and Related Wastes Pago2 <br />.' 1 <br />J