A Massachusetts federal court last week declined to certify a class in a suit against chemical company Ashland Inc., in a dispute over a factory explosion. Riva et al. v. Ashland Inc., No. 1:09-cv-12074 (D. Mass.).

Plaintiffs alleged that the defendant negligently maintained certain highly explosive chemicals at a Danvers, MA, facility in such a way that caused an explosion in 2006. At the time of the explosion, Ashland was the primary provider of chemicals to C.A.I., a manufacturer of commercial printing inks, and Arnel Co., Inc. a manufacturer of paint products. C.A.I. and Arnel both operated from the Danvers facility. There was an incident that destroyed the Danvers facility and caused property damage to the surrounding Danversport community. The named plaintiffs claimed that Ashland, among other things: did not inquire or determine whether C.A.I. or Arnel had a license or permit to maintain the quantities and types of chemicals Ashland provided; failed to warn about the scope and magnitude of the explosive risks and hazards of the chemicals and chemical mixtures that it was providing; delivered chemicals into inappropriate containers and vessels. Ashland prepared a vigorous defense. Plaintiffs sued under theories of strict liability, negligence, nuisance, and breach of implied warranty of merchantability.