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