The Grande Prairie Optimization Project is an environmental and efficiency project. The centerpiece of the environmental portion of the project is a two-vessel oxygen delignification system with pre and post oxygen washing, which significantly reduces effluent color. The efficiency portion of the project is a combination of many elements, involving the chemical, recovery, utilities, fibreline and machine room areas. JVD acted as the general contractor for this project, responsible for the completion of all aspects of the project including civil, mechanical, structural, tankage, electrical, and instrumentation. This scope included the replacement of all piping in the brownstock area, and incorporated re-building the bleach washers, innovatively replacing the chip bin and an expansive heavy lift schedule.