Thornton residents may drop off items that they may not be able to dispose of in their normal trash service at no charge. Restrictions and limitations do apply. Proof of Thornton residency is required. One vehicle load per household. Pickup trucks, cars, and small single-axle trailer loads only (less than 5 yards of debris.) All loads must be covered. NO electronics, tires, car batteries, medical waste, ammunition, fireworks, fluorescent bulbs, or liquids of any kind. Non-hazardous debris only. Reflective vests must be worn while outside of vehicle and are available at the landfill for $3 each. $37 additional fee for mattresses or boxsprings. Commercial loads are subject to additional fees.