Watterson Technology was entasked to upgrade an existing SBR Wastewater Treatment Plant and increase its capacity. Due to space constrain, Watterson Technology have proposed to the client on using Moving Bed Bio Reactor (MBBR) chips to increase surface area of the existing SBR without increase the plant footprint. The client also request for a modified Standard A even though the area is adhering to Department of Environment (DOE) Standard B. Watterson Technology have successfully deliver the client request in achieving the modified Standard A.