Chevron awards PSI "Certificate Of Significant Safety Achievement" for 2004 Petrochemical Services Inc. has received a "Certificate Of Significant Safety Achievement" from Chevron for completing the year 2004 with an OSHA Incident rate of Zero. To attain this award, PSI worked incident free, no lost time or recordable injuries, at the Chevron El Segundo California Refinery, and the Chevron Richmond California Refinery for the entire year of 2004. Back To News Page