Contact Us Occupational Environmental Health Solutions, Inc. Contact Us If you are human, leave this field blank. Name Last Email Subject Message Submit 346 Williams Lane P.O. Box 252 Chatham, Illinois 62629 St. Louis Metro Area Office PO Box 5918 Berkeley, MO 63135 Call Today! Toll Free: (877)-OEHSINC (634-7462) Phone – (217) 483-9296 Fax – (217) 483-4196 Email Address – jbarnes@oehsinc.com