On March 23, 2007, The California Department of Health Services and the United States Food and Drug Administration released its report, "Investigation of an Escherichia coli O157:H7 Outbreak Associated with Dole Pre-Packaged Spinach (redacted)." (PDF) and, "Recommendations in follow up to the Investigation of an Escherichia coli O157:H7 Outbreak Associated with Dole PrePackaged Spinach." (PDF) The report and recommendations follow the 2006 E. coli outbreak that was traced to pre-packated Dole spinach that was produced in California’s Salinas Valley and sold nationwide.