NEW BALTIMORE, Mich.—The state of Michigan informed all municipal water treatment plants on Aug. 11 that one chemical manufacturer’s certification has been revoked after this town nearly added sulfuric acid to its drinking water system due to the manufacturer’s labeling error. The National Sanitation Foundation (NSF) has revoked the certification of PVS Nolwood as an accredited distributor of chemicals for drinking water treatment and more. The labeling error by the company resulted in an estimated $10,000 in damages to a pump and storage tank at New Baltimore’s municipal water treatment plant. Four drums of liquid sulfuric acid were somehow mislabeled and delivered to the New Baltimore facility by PVS Nolwood, a global chemical manufacturer and distributor headquartered in Detroit. As a wholesaler, PVS Nolwood receives chemicals in bulk on railroad tankers and offers customers the option of repackaging the products into custom package sizes. The firm promotes this service on …