The following mixed methods case study design evaluated the effectiveness of a California Employment Training Panel-funded incumbent worker training program at a community college in Southern California. The specialized program was created in response to specific local business needs and provides training services for workers in local businesses. This study measured the effectiveness of a specific Employment Training Panel 2011/2012 contract program term at Creek Side Community College to the extent possible with the available documents, personal interviews, and survey of trainees. Four specific training interventions were evaluated to inform the college leadership and provide recommendations to improve future program evaluations. Materials developed in this study can be used as a resource for other incumbent worker training programs in that the evaluation method and instruments can be adapted to other settings. Within the limited available data this study provides indicators of whether the college's program achieved the learning objectives and of the program's overall effectiveness. Finally, it provides a review of the literature pertaining to federal and state workforce programs and community college economic development efforts. Research provides evidence that trainees are using what they learned in training on the job. The training appeared successful in allowing trainees to gain the skills needed to improve productivity at their worksites. Most respondents felt positively about the quality of instruction, felt the learning objectives were met and trainees emerged more positive feelings about their employees. This study provides recommendations for the California Employment Training Panel program, and practitioners, such as community colleges and participating businesses.