A process control monitoring program from Aqua Operations can help determine the concentration of BOD, TSS and other constituents in returned waste streams. The program can designate sampling locations for monitoring of the loading to various processes downstream of the introduction of each returned waste stream. If the returned streams are returned to the headworks downstream of the influent sampling, a process control sampling location should be determined to provide a representative sample of the actual facility loading to the primary clarifiers. The program can provide the actual biological and nutrient loading to a facility’s processes, which is integral to proper facility operation. 888/746-6535; www.aquaoperations.com.