Engineered and constructed in 3 phases over 3 years, McCain Foods Waste Water Treatment Plant located at their potato processing plant in Carberry, MB consists of a primary treatment phase for removal of mud and frying oil, an anaerobic pre-treatment lagoon which removes nitrogen and phosphates and an advanced nutrient removal system for biochemical oxygen demand and total nitrogen control. The successful completion of this Project in November 2009 became an integral component in the Carberry Plant becoming the first McCain Foods plant in Canada to achieve ISO 14001 certification.

Raven Construction was responsible for the design and construction of all civil, structural and architectural components pertaining to Phases II and III of this project, including the following:

• 32,000 m3 Covered Anaerobic Lagoon (CAL), including Inlet and Outlet Chambers

• Sludge Withdrawal & CAL Mixing Building

• Aeration Basin

• Secondary Clarifier

• Cast-in-place concrete installation (4000 CM)

• All associated underground piping, manholes and catch basins

• Final grading and Fence installation

Highlights: Project executed successfully over a two year period under a compressed work schedule due to late project award and subsequent winter concrete restrictions. This project included for approximately 4000 cubic metres of cast-in-place concrete (Peri Formwork System utilized) and roughly 1000 metres of underground HDPE piping

Original location of the project was a Greenfield site east of the existing plant. In an effort to reduce project costs, the site location was relocated to an area within the existing plant footprint. Additional coordination required with plant personnel to ensure that construction activities did not impact plant production