Wastewater Treatment and Reclamation

  • Receiving Water Quality Assurance Plans and Studies
    • outfall mixing zones, rivers, lakes, sediments, groundwater
    • temperature, dissolved oxygen, nutrients, trace metals, polychlorinated biphenyls (PCBs), toxic compounds
  • Wastewater Treatment Planning and Design
    • domestic, industrial, agricultural
    • facultative and aerated lagoons
    • land treatment systems
    • screening and grit removal
    • suspended and attached growth biological treatment
    • biological nutrient removal and modeling
    • clarification
    • coagulation and flocculation
    • granular media filters, synthetic media disk filters, MF/UF membranes
    • disinfection - chlorination, peracetic acid, hydrogen peroxide, ultraviolet disinfection
  • Wastewater Reclamation and Reuse Planning and Design
    • agricultural irrigation
    • landscape and turf irrigation
    • utility, commercial, and industrial uses
    • wetlands and stream flow augmentation
    • groundwater recharge
    • indirect and direct potable reuse
  • Biosolids Treatment Planning and Design
    • thickening, dewatering, and drying
    • anaerobic and aerobic digestion
    • composting
    • land application
  • Odor and Air Emissions Control
    • biofilters and scrubbers
    • chemical injection
    • process covers

Airway Heights, WA

Cheney, WA

Liberty Lake, WA

Spokane, WA

Leavenworth, WA

Enumclaw, WA

Medical Lake, WA

Kettle Falls, WA