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Eclipse Metal Fabrication, 17700 Schideler Parkway, Lathrop Hazardous Waste Management Plan June 21, 2021 Eclipse Metal Fabrication (EMF) is a sheet metal fabrication shop, performing precision laser and computer numerically controlled (CNC) metal parts. In the production of these materials the business generates small quantities of hazardous waste on-site. These hazardous wastes include: Used Oil from servicing equipment on-site, Used oil/coolant mix from the CNC process , Metal dust fines from the laser cutting process. Historically, EMF has generated Non-RCRA Hazardous Wastes (used oil and used oil/coolant mix), which is transported for disposal as a 221 and 223 waste code. On October 12, 2020, EMF received a new business inspection by San Joaquin County Department of Environmental, as part of a routine CUPA inspection. During the inspection, EMF was asked to evaluate metal fines from three processing areas: CNC, Sanding and Debur and Laser Cutting. Metal scrap, fines and dusts are generated from cutting, machining and sanding primarily steel and stainless steel and also some aluminum. After a series of metal sampling and analysis: Metal Sieve tests, CAM 17 Metals, TTLC and TCLP results determined that metal dust fines from the laser cutting process were considered RCRA hazardous waste for chromium and NonRCRA hazardous waste for copper and nickel. Metal scrap and fines from the CNC and Sanding/Debur are not hazardous and will continue to be sent to ALCO Metals in San Leandro, for metal recycling. As of March 1, 2021, metal dust fines collected from the two Amada Lasers will be disposed of a as D006, RCRA Hazardous Waste. Metal dusts are generated from laser cutting steel and stainless steel and the hazardous constituents in this metal dust (Cr, Cu and Ni), are accumulated as one waste stream and cannot be separated. These metal fines are accumulated at the base of each laser in a collection bin, lined with a 5 mil plastic bag. Once full, a qualified EMF employee, using gloves, safety glasses and a minimum of an N-95 filtering facepiece or air purifying respirator, will collect and place the bag in a 55 - gallon metal drum with a complete hazardous waste label. Since this is a new waste stream, EMF is estimating that four (4) 55 -gallon drums of metal dust fines will be generated annually. As of June 14, 2021, EMF has signed a contract with Ingenium, a licensed hazardous waste hauler, to pick-up and transport all of its hazard wastes. As a small quantity generator (SQG), EMF anticipates that Ingenium will perform two hazardous waste pick-ups annually. EMF has also updated it Hazardous Materials Business Plan in CERS to reflect its new waste stream and estimated annual through -put. All hazardous waste manifests, consolidated waste and metal scrap receipts will be maintained on site for review.