Wastewater treatment plant maintenance services to execute this work, including logistics, customs, shipping, transportation, labor, wastewater treatment chemicals, tools, wastewater treatment testing kits/equipment, administrative and all associated management support functions. The wastewater treatment service contract includes but is not limited to combinations of physical methods, chemical methods, equipment servicing and testing to control wastewater-related issues such as flow control, blower maintenance & operation, air diffuser operation and adjustment, activated sludge aeration (Dissolved Oxygen), clarifier cleaning and operation, weir cleaning and adjustment, air-lift pumps operation and adjustment, filtration cleaning and operation (if applicable), disinfection control, effluent testing and