Walmart Has Allegedly Been Dumping Hazardous Waste and Confidential Customer Information Posted byChloe Arrojado December 21, 2021 Leave a comment on Walmart Has Allegedly Been Dumping Hazardous Waste and Confidential Customer Information California officials have filed a lawsuit against Walmart for its disposal practices, estimating that more than 1 million items of hazardous waste are being sent to landfills annually.