Section 577.078 - Water contamination - penalty1. A person commits the offense of criminal water contamination if such person knowingly introduces any dangerous radiological, chemical or biological agent or substance into any public or private waters of the state or any water supply with the purpose of causing death or serious physical injury to another person.2. The offense of criminal water contamination is a class B felony.Added by 2014 Mo. Laws, SB 491,s A, eff. 1/1/2017.