Giffels designed a flow through wastewater treatment system for 2,750 cubic metres per day of process water. The treatment system consisted of equalization, oil/water separation, chemical precipitation, flocculation, clarification, neutralization and sludge compaction. Two separate systems are provided from equalization through chemical precipitation stages, one for soluble metals waste and the second for oily waste. The two waste streams are united for subsequent stages of treatment and are combined with the acidic and alkaline waste for neutralization and controlled-rate effluent discharge to the municipal sewage system.

A programmable logic controller (PLC) system with backup display provides continuous monitoring and alarm indicators. Giffels later designed a 100% expansion to this system to accommodate a second automobile assembly plant at the site. The expanded facility included a reverse osmosis system which purifies water prior to recirculation in cooling systems.

In 2002, Giffels provided detail design engineering for the modification of the wastewater and water treatment plants. Giffels also provided detail design for the D1 regeneration wastewater reuse system.