Illegal Dumping

Illegal dumping is a serious, chronic problem in communities everywhere. It is the disposal or abandonment of materials such as appliances, furniture, scrap tires, and construction waste in unauthorized places around the city, typically public sidewalks, empty lots, and parking lots. Besides being unsightly, illegal dumping also poses a health and safety hazard.

Report Illegal Dumping

Illegal dumping is a violation of the Diamond Bar Municipal Code, and can carry fines up to $1,000 and 180 days in jail. Call the Diamond Bar-Walnut Sheriff’s Station at (909) 595-2264 if you observe someone illegally dumping. To request cleanup of an illegal dumping site within city limits, call the City’s Public Works Department at (909) 839-7060 or use the City's online reporting form.

Bulky Item Pickup

Residents are entitled to up to four free curbside pickups annually. Pick-ups must be scheduled in advance by contacting your waste hauler - Waste Management at (909) 599-1274, or Valley Vista at (800) 442-6454.