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Hazardous Materials And Wastes Inventory Matrix Report <br />CERS ID 10184631 <br />Facility ID <br /> <br /> <br />Status <br />CERS Business/Org.MOUNTAIN HOUSE CSD <br />Facility Name MOUNTAIN HOUSE CSD WATER TREATMENT <br />18045 S KELSO RD, BYRON 94514 Submitted on 9/22/2025 4:45 PM <br />Federal Hazard <br />Categories % Wt CAS No.Common Name Component NameDOT Code/Fire Haz. Class EHS <br />Hazardous Components <br />(For mixture only) <br />Largest Cont.Avg. DailyMax. DailyUnit <br />Quantities <br />Annual <br />Waste <br />Amount <br />DOT: 3 - Flammable and <br />Combustible Liquids <br />Combustible Liquid, Class III-B <br />VARIOUS LUBRICATING BASE OILS 6474X-XX-X85% <br />ADDITIVE PACKAGE, INCLUDING MIXTURE15% <br />ZINC ALKYLDITHIOPHOSPHATE 68649-42-32% <br />CAS No <br /> <br />Waste Oil <br />Mixture Days on Site: 365 <br />255555 <br />Liquid <br />Storage Container <br />Gallons <br />Ambient <br />Ambient <br />Plastic/Non-metalic Drum <br />Temperature <br />PressueState <br />Type <br />- Physical <br />Flammable <br />- Health Acute <br />Toxicity <br />30 <br />Waste Code <br />221 <br />Printed on 9/24/2025 3:46 PM Page 6 of 8