Wastewater Division

The City of Mexico Wastewater Treatment Plant is designed to handle 3 million gallons per day (MGD) of wastewater at the following concentrations:
  • Ammonia-Nitrogen (NH3-N) - 25 milligrams per liter (mg/l)
  • Biochemical Oxygen Demand (BOD) - 225 mg/l
  • Total Suspended Solids (TSS) - 300 mg/l
The collection system consists of:
  • 84 miles of pipe ranging in diameter from 6 to 30 inches
  • 1900 manholes constructed of brick or concrete
  • 13 lift stations