Wastewater Treatment Process

Wastewater treatment is cleaning used water and sewage so it can be returned safely to our environment. 

WWTP BuildingWastewater treatment basically takes place in three stages:

  1. Preliminary & Primary treatment, which removes 40-60% of the solids.
  2. Secondary treatment, which removes about 90% of the pollutants and completes the process for the liquid portion of the separated wastewater.
  3. Constructed Wetlands use natural processes involving wetland vegetation, soils and their associated microbial assemblages to improve water quality.
  4. Sludge (biosolids) treatment and disposal.

Preliminary & Primary Treatment  


Secondary Treatment


Constructed Wetlands

All effluent returned to natural bodies of water must meet National Pollutant Discharge Elimination System (NPDES) criteria.  The final effluent is monitored daily.  In-house laboratory staff performs sampling and analysis for process control and NPDES compliance. 

Sludge (Biosolids) Treatment