OSHA has cited a specialty chemical manufacturer for 20 safety violations following a plant explosion that resulted in the hospitalization of approximately 40 employees of other companies, working in the surrounding area, for decontamination. The May explosion was caused by a runaway reaction from an overheated reactor. During the production of a compound used in water treatment, an increase in temperature caused the reactor to overpressurize, rupturing the dome cover and blowing a hole in the roof of the facility. In response to the incident, OSHA conducted an inspection under the PSM NEP for covered chemical facilities. Proposed penalties total $77,000. Here is a break down of the citations: